Krantikumar Jain
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Krantikumar Jain
asked on 19 Feb 2010, 03:12 PM
Hi
I am using Treeview control to create Levels called Layers (folders) and insurers (Files). I have added Add Layer and Add Insurer Context Menu items when Right clicking on Layer. I want to achieve following things.
Thanks,
Krantikumar Jain
Below is my code.
TRV_DEMO.aspx
<%@ Page Language="vb" AutoEventWireup="false" Codebehind="TRV_DEMO.aspx.vb" ValidateRequest="false" Inherits="TreeViewControl.TRV_DEMO"
Title="Tree View Control DEMO" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<table border="0" cellpadding="5" cellspacing="5" width="800" >
<tr>
<td>
<div>
<asp:Panel runat="server" ID="pnl1" BorderColor="Maroon">
<table>
<tr>
<td style="height: 50px">
<asp:Button ID="btnGrp" runat="server" Text="Add Layer" />
<asp:Button ID="btnChild" runat="server" Text="Add Insurer" />
</td>
<td style="height: 50px">
<asp:Button ID="btnInsurerDelete" runat="server" Text="Delete Insurer" /></td>
<td style="height: 50px">
<asp:Button ID="btnDeleteLayer" runat="server" Text="Delete Layer" /></td>
</tr>
</table>
</asp:Panel>
</div>
<br />
<br />
<br />
<asp:Panel runat="server" ID="Pnl2">
<div>
<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
</telerik:RadScriptManager>
<script type="text/javascript">
//<!--
function onClientContextMenuShowing(sender, args)
{
var treeNode = args.get_node();
treeNode.set_selected(true);
//enable/disable menu items
setMenuItemsState(args.get_menu().get_items(), treeNode);
}
function onClientContextMenuItemClicking(sender, args)
{
var menuItem = args.get_menuItem();
var treeNode = args.get_node();
menuItem.get_menu().hide();
switch(menuItem.get_value())
{
case "Copy":
break;
case "Rename":
treeNode.startEdit();
break;
case "NewLayer":
break;
case "NewInsurer":
break;
case "Delete":
var result = confirm("Are you sure you want to delete the item: " + treeNode.get_text());
args.set_cancel(!result);
break;
}
}
//this method disables the appropriate context menu items
function setMenuItemsState(menuItems, treeNode)
{
for (var i=0; i<menuItems.get_count(); i++)
{
var menuItem = menuItems.getItem(i);
switch(menuItem.get_value())
{
case "Copy":
formatMenuItem(menuItem, treeNode, 'Copy "{0}"');
break;
case "Rename":
formatMenuItem(menuItem, treeNode, 'Rename "{0}"');
break;
case "Delete":
formatMenuItem(menuItem, treeNode, 'Delete "{0}"');
break;
case "NewLayer":
if (treeNode.get_parent() == treeNode.get_treeView())
{
menuItem.set_enabled(true);
}
else
{
menuItem.set_enabled(true);
}
break;
case "NewInsurer":
if (treeNode.get_parent() == treeNode.get_treeView())
{
menuItem.set_enabled(true);
}
else
{
menuItem.set_enabled(true);
}
break;
}
}
}
//formats the Text of the menu item
function formatMenuItem(menuItem, treeNode, formatString)
{
var nodeValue = treeNode.get_value();
if (nodeValue && nodeValue.indexOf("_Private_") == 0)
{
menuItem.set_enabled(false);
}
else
{
menuItem.set_enabled(true);
}
var newText = String.format(formatString, extractTitleWithoutMails(treeNode));
menuItem.set_text(newText);
}
//checks if the text contains (digit)
function hasNodeMails(treeNode)
{
return treeNode.get_text().match(/\([\d]+\)/ig);
}
//removes the brackets with the numbers,e.g. Inbox (30)
function extractTitleWithoutMails(treeNode)
{
return treeNode.get_text().replace(/\s*\([\d]+\)\s*/ig, "");
}
//-->
</script>
</div>
</asp:Panel>
<table style="border: solid 1px #000; width: 100%; height: 400px; overflow: auto; vertical-align: top;" cellpadding="5" cellspacing="5">
<tr>
<td>
<asp:Panel runat="server" ID="pnlTV">
<telerik:RadTreeView ID="RadTreeView1" runat="server" AllowNodeEditing="true" OnContextMenuItemClick="RadTreeView1_ContextMenuItemClick"
OnClientContextMenuItemClicking="onClientContextMenuItemClicking" OnClientContextMenuShowing="onClientContextMenuShowing"
OnNodeClick="RadTreeView1_NodeClick" OnNodeEdit="RadTreeView1_NodeEdit">
<ContextMenus>
<telerik:RadTreeViewContextMenu ID="MainContextMenu" runat="server">
<Items>
<telerik:RadMenuItem Value="Copy" Text="Copy ..." ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="Rename" Text="Rename ..." Enabled="false" ImageUrl=""
PostBack="false">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="NewLayer" Text="New Layer" ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="NewInsurer" Text="New Insurer" ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="Delete" Text="Delete Folder" ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem IsSeparator="true">
</telerik:RadMenuItem>
</Items>
<CollapseAnimation Type="none" />
</telerik:RadTreeViewContextMenu>
<telerik:RadTreeViewContextMenu ID="EmptyLayerContextMenu" runat="server">
<Items>
<telerik:RadMenuItem Value="NewLayer" Text="New Layer" ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="NewInsurer" Text="New Insurer" ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem IsSeparator="true">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="EmptyLayer" Text="Empty this Layer" ImageUrl="">
</telerik:RadMenuItem>
</Items>
<CollapseAnimation Type="none" />
</telerik:RadTreeViewContextMenu>
</ContextMenus>
<Nodes>
<telerik:RadTreeNode runat="server" Text="POLICY" Expanded="true" ImageUrl="Images/Layer.jpg" AllowDrag="false">
</telerik:RadTreeNode>
</Nodes>
</telerik:RadTreeView>
</asp:Panel>
</td>
<td>
<div>
<asp:Panel runat="server" ID="pnlGrp" Visible="false">
<table border="2" cellpadding="5" cellspacing="5">
<tr>
<td>
<asp:Label ID="Layer" runat="server" Text="Layer"></asp:Label>
</td>
<td>
<telerik:RadTextBox ID="txtLayer" runat="server">
</telerik:RadTextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label2" runat="server" Text="Percentage (%)"></asp:Label>
</td>
<td>
<telerik:RadNumericTextBox Type="Percent" ID="txtLayerPercentage" runat="server">
<NumberFormat AllowRounding="true" />
</telerik:RadNumericTextBox>
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnAddLayer" runat="server" Text="Add Layer" />
</td>
<td>
<asp:Button ID="btnEditLayer" runat="server" Text="Edit Layer" />
</td>
</tr>
</table>
</asp:Panel>
</div>
<div>
<asp:Panel runat="server" ID="pnlChild" Visible="false">
<table border="2" cellpadding="5" cellspacing="5">
<%-- <asp:DropDownList ID="ddInsurer" runat="server" OnSelectedIndexChanged="ddInsurer_SelectedIndexChanged">
<asp:ListItem>ALL STATE</asp:ListItem>
<asp:ListItem>NATION WIDE</asp:ListItem>
<asp:ListItem>PROGRESSIVE</asp:ListItem>
<asp:ListItem>GEICO</asp:ListItem>
<asp:ListItem>ESURANCE</asp:ListItem>
<asp:ListItem>AIG-AUTO</asp:ListItem>
</asp:DropDownList>
--%> <tr>
<td>
<asp:Label ID="lbleInsuree" runat="server" Text="Insurer"></asp:Label>
</td>
<td>
<telerik:RadComboBox AllowCustomText="true" Enabled="true" runat="server" ID="cmbInsurer" Width="150px">
<Items>
<telerik:RadComboBoxItem Text="" Value=""></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="21st Century" Value="21st Century"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="ALL STATE" Value="ALL STATE"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="FARMERS INSURANCE" Value="FARMERS INSURANCE"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="NATION WIDE" Value="NATION WIDE"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="PROGRESSIVE" Value="PROGRESSIVE"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="GEICO" Value="GEICO"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="ESURANCE" Value="ESURANCE"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="AIG-AUTO" Value="AIG-AUTO"></telerik:RadComboBoxItem>
</Items>
</telerik:RadComboBox>
</td>
</tr>
<%-- <tr>
<td>
<asp:Label ID="Label1" runat="server" Text="Insurer"></asp:Label></td>
<td>
<telerik:RadTextBox ID="txtInsurer" runat="server">
</telerik:RadTextBox>
</td>
</tr>--%>
<tr>
<td>
<asp:Label ID="InsPer" runat="server" Text="Percentage (%)"></asp:Label>
</td>
<td>
<telerik:RadNumericTextBox Type="Percent" ID="txtPercentage" runat="server">
<NumberFormat AllowRounding="true" />
</telerik:RadNumericTextBox>
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnInsurerAdd" runat="server" Text="Add Insurer" />
</td>
<td>
<asp:Button ID="btnInsurerEdit" runat="server" Text="Edit Insurer" />
</td>
</tr>
</table>
</asp:Panel>
</div>
</td>
</tr>
</table>
<br />
<br />
<br />
<br />
<table>
<tr>
<td>
<asp:Button ID="btnXML" runat="server" Text="Export XML" />
</td>
<td>
<asp:Button ID="btnClear" runat="server" Text="Clear XML" Visible="false" />
</td>
</tr>
<tr>
<td colspan="2">
<asp:TextBox ID="txtXML" runat="server" Height="294px" TextMode="MultiLine" Width="673px"
Visible="false"></asp:TextBox></td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</body>
</html>
Code behind file TRV_DEMO.aspx.vb
Imports System
Imports System.Collections
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Web
Imports System.Web.SessionState
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.HtmlControls
Imports System.Text.RegularExpressions
Imports Telerik.Web.UI
Imports System.IO
Imports System.Xml
Partial Public Class TRV_DEMO
Inherits System.Web.UI.Page
Protected Const unreadPattern As String = "\(\d+\)"
'Diabled all the panels and Delete Layer and Delete Insure buttons
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
pnlGrp.Visible = False
pnlChild.Visible = False
btnDeleteLayer.Enabled = False
btnInsurerDelete.Enabled = False
End Sub
Protected Sub btnGrp_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGrp.Click
'Enable the Group Layer creation panel
pnlGrp.Visible = True
pnlChild.Visible = False
'Disable the Edit option while adding the Layer
btnEditLayer.Visible = False
btnAddLayer.Visible = True
txtLayer.Text = ""
txtLayerPercentage.Text = ""
End Sub
Protected Sub btnChild_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnChild.Click
'Enable the Group Layer creation panel
pnlChild.Visible = True
pnlGrp.Visible = False
'Disable the Edit option while adding the Insurer
btnInsurerEdit.Visible = False
btnInsurerAdd.Visible = True
cmbInsurer.Text = ""
txtPercentage.Text = ""
End Sub
'this method is used by Mark All as Read and Empty this folder
Protected Sub EmptyLayer(ByVal node As RadTreeNode, ByVal removeChildNodes As Boolean)
node.Font.Bold = False
node.Text = Regex.Replace(node.Text, unreadPattern, "")
If removeChildNodes Then
'Empty this folder is clicked
Dim i As Integer = node.Nodes.Count - 1
While i >= 0
node.Nodes.RemoveAt(i)
System.Math.Max(System.Threading.Interlocked.Decrement(i), i + 1)
End While
Else
'Mark all as read is clicked
For Each child As RadTreeNode In node.Nodes
EmptyLayer(child, removeChildNodes)
Next
End If
End Sub
Protected Sub RadTreeView1_ContextMenuItemClick(ByVal sender As Object, ByVal e As RadTreeViewContextMenuEventArgs)
Dim clickedNode As RadTreeNode = e.Node
If (clickedNode.Value <> "") Then
e.MenuItem.Enabled = False
End If
Select Case e.MenuItem.Value
Case "Copy"
Dim clonedNode As RadTreeNode = clickedNode.Clone()
clonedNode.Text = String.Format("Copy of {0}", clickedNode.Text)
clickedNode.InsertAfter(clonedNode)
'set node's value so we can find it in startNodeInEditMode
clonedNode.Value = clonedNode.GetFullPath("/")
clonedNode.Selected = True
startNodeInEditMode(clonedNode.Value)
Exit Select
Case "NewLayer"
Dim NewLayer As New RadTreeNode(String.Format("New Layer {0}", clickedNode.Nodes.Count + 1))
NewLayer.Selected = True
NewLayer.ImageUrl = clickedNode.ImageUrl
clickedNode.Nodes.Add(NewLayer)
clickedNode.Expanded = True
'update the number in the brackets
'If Regex.IsMatch(clickedNode.Text, unreadPattern) Then
' clickedNode.Text = Regex.Replace(clickedNode.Text, unreadPattern, "(" + clickedNode.Nodes.Count.ToString() + ")")
'Else
' clickedNode.Text += String.Format(" ({0})", clickedNode.Nodes.Count)
'End If
' clickedNode.Font.Bold = True
'set node's value so we can find it in startNodeInEditMode
'NewLayer.Value = NewLayer.GetFullPath("/")
'startNodeInEditMode(NewLayer.Value)
Exit Select
Case "NewInsurer"
Dim NewLayer As New RadTreeNode(String.Format("New Insurer {0}", clickedNode.Nodes.Count + 1))
NewLayer.Selected = True
NewLayer.ImageUrl = "Images/Insurer.jpg"
NewLayer.Value = "9"
clickedNode.Nodes.Add(NewLayer)
clickedNode.Expanded = True
'update the number in the brackets
'If Regex.IsMatch(clickedNode.Text, unreadPattern) Then
' clickedNode.Text = Regex.Replace(clickedNode.Text, unreadPattern, "(" + clickedNode.Nodes.Count.ToString() + ")")
'Else
' clickedNode.Text += String.Format(" ({0})", clickedNode.Nodes.Count)
'End If
' clickedNode.Font.Bold = True
'set node's value so we can find it in startNodeInEditMode
'NewLayer.Value = NewLayer.GetFullPath("/")
'startNodeInEditMode(NewLayer.Value)
Exit Select
Case "EmptyLayer"
EmptyLayer(clickedNode, True)
Exit Select
Case "Delete"
clickedNode.Remove()
Exit Select
End Select
End Sub
Private Sub startNodeInEditMode(ByVal nodeValue As String)
'find the node by its Value and edit it when page loads
Dim js As String = "Sys.Application.add_load(editNode); function editNode(){ "
js += "var tree = $find(""" + RadTreeView1.ClientID + """);"
js += "var node = tree.findNodeByValue('" + nodeValue + "');"
js += "if (node) node.startEdit();"
js += "Sys.Application.remove_load(editNode);};"
RadScriptManager.RegisterStartupScript(Page, Page.[GetType](), "nodeEdit", js, True)
End Sub
Protected Sub btnAddLayer_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAddLayer.Click
'Dim foundNode As RadTreeNode = RadTreeView1.FindNodeByText("ROOT_NODE")
''TextBox1.Text = ""
''Dim foundNode As RadTreeNode = RadTreeView1.FindNodeByText("GROUP 2")
'If foundNode IsNot Nothing Then
' tbResults.Text = foundNode.Text
'End If
Dim newNode As New RadTreeNode(RadTreeView1.SelectedNode.Text)
'Dim rtv As New RadTreeView
'rtv = RadTreeView1
'If rtv.SelectedNode.Text = Nothing Then
' ' 'nothing is selected then create LAYER under root node
' RadTreeView1.SelectedNode.Text = "POLICY"
'End If
newNode.Value = ""
If (txtLayerPercentage.Text = "") Then
txtLayer.Text = txtLayer.Text
Else
txtLayer.Text = txtLayer.Text & " (" & txtLayerPercentage.Text & "%" & ")"
End If
newNode.Text = txtLayer.Text
newNode.ImageUrl = "Images/Layer.jpg"
'RadTreeView1.Nodes.Add(newNode)
RadTreeView1.SelectedNode.Nodes.Add(newNode)
'Add to the dropdown box
' ddInsurer.Items.Add(New ListItem(newNode.Text))
End Sub
Protected Sub btnDeleteLayer_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDeleteLayer.Click
'TextBox1.Text = ""
'If RadTreeView1.SelectedNode <> Nothing Then
RadTreeView1.SelectedNode.Remove()
' or ...
'RadTreeView1.Nodes.Remove(RadTreeView1.SelectedNode)
' or ...
'RadTreeView1.SelectedNode.ParentNode.Nodes.RemoveAt(RadTreeView1.SelectedNode.Index)
'End If
End Sub
Protected Sub btnInsurerAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnInsurerAdd.Click
Dim newNode As New RadTreeNode()
If (txtPercentage.Text = "") Then
newNode.Text = cmbInsurer.Text
Else
newNode.Text = cmbInsurer.Text & " (" & txtPercentage.Text & "%" & ")"
End If
newNode.ImageUrl = "Images/Insurer.jpg"
newNode.Value = "9"
RadTreeView1.SelectedNode.Nodes.Add(newNode)
'Add to the dropdown box
' ddInsurer.Items.Add(New ListItem(newNode.Text))
End Sub
Protected Sub btnXML_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnXML.Click
Dim tv As New RadTreeView
txtXML.Text = ""
tv.LoadXmlString(RadTreeView1.GetXml())
txtXML.Text = RadTreeView1.GetXml()
tv = RadTreeView1()
txtXML.Visible = True
exportToXml(RadTreeView1.GetXml(), "C:\\Temp\\cal_xml.xml")
End Sub
Public Shared Sub exportToXml(ByVal tv As String, ByVal filename As String)
Dim XmlDocument As New XmlDocument()
XmlDocument.LoadXml(tv)
XmlDocument.Save(filename)
End Sub
Protected Sub btnClear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClear.Click
txtXML.Text = ""
End Sub
'Protected Sub ddInsurer_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ddInsurer.SelectedIndexChanged
' Dim strInsurer As String = ""
' strInsurer = ddInsurer.SelectedIndex
'End Sub
Protected Sub RadTreeView1_NodeClick(ByVal o As Object, ByVal e As Telerik.Web.UI.RadTreeNodeEventArgs) Handles RadTreeView1.NodeClick
Dim str As String
Dim numPos As Int32 = 1
Dim strPer As String = "%"
Dim numUSPos As Int32 = 1
Dim numLen As Int32 = 0
Dim numLenParent As Int32 = 0
Dim strParent As String
txtPercentage.Text = ""
txtLayerPercentage.Text = ""
strParent = e.Node.Text
str = e.Node.Text
numLen = Len(str)
numLenParent = Len(strParent)
numPos = InStr(str, strPer)
numUSPos = InStr(str, "(")
If InStr(str, "(") Then
str = str.Substring(0, numUSPos - 1)
txtLayerPercentage.Text = Trim(strParent.Substring(numUSPos, numLenParent - 2 - numUSPos))
txtPercentage.Text = Trim(strParent.Substring(numUSPos, numLenParent - 2 - numUSPos))
End If
If str = "POLICY" Then
pnlGrp.Visible = False
pnlChild.Visible = False
btnAddLayer.Visible = True
btnEditLayer.Visible = False
txtLayer.Text = ""
btnDeleteLayer.Visible = True
btnChild.Enabled = True
btnGrp.Enabled = True
Else
If e.Node.Value = "" Then
'pnlGrp.Visible = True
'pnlChild.Visible = False
'btnAddLayer.Visible = False
'btnEditLayer.Visible = True
'txtLayer.Text = str
'btnDeleteLayer.Visible = True
'btnChild.Enabled = False
'btnGrp.Visible = True
pnlGrp.Visible = True
pnlChild.Visible = False
btnAddLayer.Visible = False
btnEditLayer.Visible = True
txtLayer.Text = str
btnDeleteLayer.Enabled = True
btnChild.Enabled = True
btnGrp.Enabled = True
Else
'pnlChild.Visible = True
'pnlGrp.Visible = False
'btnInsurerAdd.Visible = False
'btnInsurerEdit.Visible = True
cmbInsurer.SelectedValue = str
'btnInsurerDelete.Visible = True
'btnGrp.Visible = True
'btnChild.Enabled = False
pnlChild.Visible = True
pnlGrp.Visible = False
btnInsurerAdd.Visible = False
btnInsurerEdit.Visible = True
cmbInsurer.Text = str
btnInsurerDelete.Enabled = True
btnGrp.Enabled = False
btnChild.Enabled = False
End If
End If
'strParent = e.Node.ParentNode.Text.ToString()
End Sub 'RadTreeView1_NodeClick
Protected Sub RadTreeView1_NodeEdit(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadTreeNodeEditEventArgs) Handles RadTreeView1.NodeEdit
Dim nodeEdited As RadTreeNode = e.Node
Dim newText As String = e.Text
nodeEdited.Text = newText
End Sub
Protected Sub btnInsurerEdit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnInsurerEdit.Click
If (txtPercentage.Text = "") Then
RadTreeView1.SelectedNode.Text = cmbInsurer.Text
Else
RadTreeView1.SelectedNode.Text = cmbInsurer.Text & " (" & txtPercentage.Text & "%" & ")"
End If
End Sub
Protected Sub btnEditLayer_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEditLayer.Click
If (txtLayerPercentage.Text = "") Then
RadTreeView1.SelectedNode.Text = txtLayer.Text
Else
RadTreeView1.SelectedNode.Text = txtLayer.Text & " (" & txtLayerPercentage.Text & "%" & ")"
End If
End Sub
Protected Sub btnInsurerDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnInsurerDelete.Click
'If RadTreeView1.SelectedNode <> Nothing Then
RadTreeView1.SelectedNode.Remove()
' or ...
'RadTreeView1.Nodes.Remove(RadTreeView1.SelectedNode)
' or ...
'RadTreeView1.SelectedNode.ParentNode.Nodes.RemoveAt(RadTreeView1.SelectedNode.Index)
'End If
End Sub
End Class
I am using Treeview control to create Levels called Layers (folders) and insurers (Files). I have added Add Layer and Add Insurer Context Menu items when Right clicking on Layer. I want to achieve following things.
1.Disable add new layer and add new Insurer context menu when you right click on an existing insurer name.
Add validation to prevent adding two layers with the same name at same Layer?
Thanks,
Krantikumar Jain
Below is my code.
TRV_DEMO.aspx
<%@ Page Language="vb" AutoEventWireup="false" Codebehind="TRV_DEMO.aspx.vb" ValidateRequest="false" Inherits="TreeViewControl.TRV_DEMO"
Title="Tree View Control DEMO" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<table border="0" cellpadding="5" cellspacing="5" width="800" >
<tr>
<td>
<div>
<asp:Panel runat="server" ID="pnl1" BorderColor="Maroon">
<table>
<tr>
<td style="height: 50px">
<asp:Button ID="btnGrp" runat="server" Text="Add Layer" />
<asp:Button ID="btnChild" runat="server" Text="Add Insurer" />
</td>
<td style="height: 50px">
<asp:Button ID="btnInsurerDelete" runat="server" Text="Delete Insurer" /></td>
<td style="height: 50px">
<asp:Button ID="btnDeleteLayer" runat="server" Text="Delete Layer" /></td>
</tr>
</table>
</asp:Panel>
</div>
<br />
<br />
<br />
<asp:Panel runat="server" ID="Pnl2">
<div>
<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
</telerik:RadScriptManager>
<script type="text/javascript">
//<!--
function onClientContextMenuShowing(sender, args)
{
var treeNode = args.get_node();
treeNode.set_selected(true);
//enable/disable menu items
setMenuItemsState(args.get_menu().get_items(), treeNode);
}
function onClientContextMenuItemClicking(sender, args)
{
var menuItem = args.get_menuItem();
var treeNode = args.get_node();
menuItem.get_menu().hide();
switch(menuItem.get_value())
{
case "Copy":
break;
case "Rename":
treeNode.startEdit();
break;
case "NewLayer":
break;
case "NewInsurer":
break;
case "Delete":
var result = confirm("Are you sure you want to delete the item: " + treeNode.get_text());
args.set_cancel(!result);
break;
}
}
//this method disables the appropriate context menu items
function setMenuItemsState(menuItems, treeNode)
{
for (var i=0; i<menuItems.get_count(); i++)
{
var menuItem = menuItems.getItem(i);
switch(menuItem.get_value())
{
case "Copy":
formatMenuItem(menuItem, treeNode, 'Copy "{0}"');
break;
case "Rename":
formatMenuItem(menuItem, treeNode, 'Rename "{0}"');
break;
case "Delete":
formatMenuItem(menuItem, treeNode, 'Delete "{0}"');
break;
case "NewLayer":
if (treeNode.get_parent() == treeNode.get_treeView())
{
menuItem.set_enabled(true);
}
else
{
menuItem.set_enabled(true);
}
break;
case "NewInsurer":
if (treeNode.get_parent() == treeNode.get_treeView())
{
menuItem.set_enabled(true);
}
else
{
menuItem.set_enabled(true);
}
break;
}
}
}
//formats the Text of the menu item
function formatMenuItem(menuItem, treeNode, formatString)
{
var nodeValue = treeNode.get_value();
if (nodeValue && nodeValue.indexOf("_Private_") == 0)
{
menuItem.set_enabled(false);
}
else
{
menuItem.set_enabled(true);
}
var newText = String.format(formatString, extractTitleWithoutMails(treeNode));
menuItem.set_text(newText);
}
//checks if the text contains (digit)
function hasNodeMails(treeNode)
{
return treeNode.get_text().match(/\([\d]+\)/ig);
}
//removes the brackets with the numbers,e.g. Inbox (30)
function extractTitleWithoutMails(treeNode)
{
return treeNode.get_text().replace(/\s*\([\d]+\)\s*/ig, "");
}
//-->
</script>
</div>
</asp:Panel>
<table style="border: solid 1px #000; width: 100%; height: 400px; overflow: auto; vertical-align: top;" cellpadding="5" cellspacing="5">
<tr>
<td>
<asp:Panel runat="server" ID="pnlTV">
<telerik:RadTreeView ID="RadTreeView1" runat="server" AllowNodeEditing="true" OnContextMenuItemClick="RadTreeView1_ContextMenuItemClick"
OnClientContextMenuItemClicking="onClientContextMenuItemClicking" OnClientContextMenuShowing="onClientContextMenuShowing"
OnNodeClick="RadTreeView1_NodeClick" OnNodeEdit="RadTreeView1_NodeEdit">
<ContextMenus>
<telerik:RadTreeViewContextMenu ID="MainContextMenu" runat="server">
<Items>
<telerik:RadMenuItem Value="Copy" Text="Copy ..." ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="Rename" Text="Rename ..." Enabled="false" ImageUrl=""
PostBack="false">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="NewLayer" Text="New Layer" ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="NewInsurer" Text="New Insurer" ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="Delete" Text="Delete Folder" ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem IsSeparator="true">
</telerik:RadMenuItem>
</Items>
<CollapseAnimation Type="none" />
</telerik:RadTreeViewContextMenu>
<telerik:RadTreeViewContextMenu ID="EmptyLayerContextMenu" runat="server">
<Items>
<telerik:RadMenuItem Value="NewLayer" Text="New Layer" ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="NewInsurer" Text="New Insurer" ImageUrl="">
</telerik:RadMenuItem>
<telerik:RadMenuItem IsSeparator="true">
</telerik:RadMenuItem>
<telerik:RadMenuItem Value="EmptyLayer" Text="Empty this Layer" ImageUrl="">
</telerik:RadMenuItem>
</Items>
<CollapseAnimation Type="none" />
</telerik:RadTreeViewContextMenu>
</ContextMenus>
<Nodes>
<telerik:RadTreeNode runat="server" Text="POLICY" Expanded="true" ImageUrl="Images/Layer.jpg" AllowDrag="false">
</telerik:RadTreeNode>
</Nodes>
</telerik:RadTreeView>
</asp:Panel>
</td>
<td>
<div>
<asp:Panel runat="server" ID="pnlGrp" Visible="false">
<table border="2" cellpadding="5" cellspacing="5">
<tr>
<td>
<asp:Label ID="Layer" runat="server" Text="Layer"></asp:Label>
</td>
<td>
<telerik:RadTextBox ID="txtLayer" runat="server">
</telerik:RadTextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label2" runat="server" Text="Percentage (%)"></asp:Label>
</td>
<td>
<telerik:RadNumericTextBox Type="Percent" ID="txtLayerPercentage" runat="server">
<NumberFormat AllowRounding="true" />
</telerik:RadNumericTextBox>
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnAddLayer" runat="server" Text="Add Layer" />
</td>
<td>
<asp:Button ID="btnEditLayer" runat="server" Text="Edit Layer" />
</td>
</tr>
</table>
</asp:Panel>
</div>
<div>
<asp:Panel runat="server" ID="pnlChild" Visible="false">
<table border="2" cellpadding="5" cellspacing="5">
<%-- <asp:DropDownList ID="ddInsurer" runat="server" OnSelectedIndexChanged="ddInsurer_SelectedIndexChanged">
<asp:ListItem>ALL STATE</asp:ListItem>
<asp:ListItem>NATION WIDE</asp:ListItem>
<asp:ListItem>PROGRESSIVE</asp:ListItem>
<asp:ListItem>GEICO</asp:ListItem>
<asp:ListItem>ESURANCE</asp:ListItem>
<asp:ListItem>AIG-AUTO</asp:ListItem>
</asp:DropDownList>
--%> <tr>
<td>
<asp:Label ID="lbleInsuree" runat="server" Text="Insurer"></asp:Label>
</td>
<td>
<telerik:RadComboBox AllowCustomText="true" Enabled="true" runat="server" ID="cmbInsurer" Width="150px">
<Items>
<telerik:RadComboBoxItem Text="" Value=""></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="21st Century" Value="21st Century"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="ALL STATE" Value="ALL STATE"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="FARMERS INSURANCE" Value="FARMERS INSURANCE"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="NATION WIDE" Value="NATION WIDE"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="PROGRESSIVE" Value="PROGRESSIVE"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="GEICO" Value="GEICO"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="ESURANCE" Value="ESURANCE"></telerik:RadComboBoxItem>
<telerik:RadComboBoxItem Text="AIG-AUTO" Value="AIG-AUTO"></telerik:RadComboBoxItem>
</Items>
</telerik:RadComboBox>
</td>
</tr>
<%-- <tr>
<td>
<asp:Label ID="Label1" runat="server" Text="Insurer"></asp:Label></td>
<td>
<telerik:RadTextBox ID="txtInsurer" runat="server">
</telerik:RadTextBox>
</td>
</tr>--%>
<tr>
<td>
<asp:Label ID="InsPer" runat="server" Text="Percentage (%)"></asp:Label>
</td>
<td>
<telerik:RadNumericTextBox Type="Percent" ID="txtPercentage" runat="server">
<NumberFormat AllowRounding="true" />
</telerik:RadNumericTextBox>
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnInsurerAdd" runat="server" Text="Add Insurer" />
</td>
<td>
<asp:Button ID="btnInsurerEdit" runat="server" Text="Edit Insurer" />
</td>
</tr>
</table>
</asp:Panel>
</div>
</td>
</tr>
</table>
<br />
<br />
<br />
<br />
<table>
<tr>
<td>
<asp:Button ID="btnXML" runat="server" Text="Export XML" />
</td>
<td>
<asp:Button ID="btnClear" runat="server" Text="Clear XML" Visible="false" />
</td>
</tr>
<tr>
<td colspan="2">
<asp:TextBox ID="txtXML" runat="server" Height="294px" TextMode="MultiLine" Width="673px"
Visible="false"></asp:TextBox></td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</body>
</html>
Code behind file TRV_DEMO.aspx.vb
Imports System
Imports System.Collections
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Web
Imports System.Web.SessionState
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.HtmlControls
Imports System.Text.RegularExpressions
Imports Telerik.Web.UI
Imports System.IO
Imports System.Xml
Partial Public Class TRV_DEMO
Inherits System.Web.UI.Page
Protected Const unreadPattern As String = "\(\d+\)"
'Diabled all the panels and Delete Layer and Delete Insure buttons
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
pnlGrp.Visible = False
pnlChild.Visible = False
btnDeleteLayer.Enabled = False
btnInsurerDelete.Enabled = False
End Sub
Protected Sub btnGrp_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGrp.Click
'Enable the Group Layer creation panel
pnlGrp.Visible = True
pnlChild.Visible = False
'Disable the Edit option while adding the Layer
btnEditLayer.Visible = False
btnAddLayer.Visible = True
txtLayer.Text = ""
txtLayerPercentage.Text = ""
End Sub
Protected Sub btnChild_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnChild.Click
'Enable the Group Layer creation panel
pnlChild.Visible = True
pnlGrp.Visible = False
'Disable the Edit option while adding the Insurer
btnInsurerEdit.Visible = False
btnInsurerAdd.Visible = True
cmbInsurer.Text = ""
txtPercentage.Text = ""
End Sub
'this method is used by Mark All as Read and Empty this folder
Protected Sub EmptyLayer(ByVal node As RadTreeNode, ByVal removeChildNodes As Boolean)
node.Font.Bold = False
node.Text = Regex.Replace(node.Text, unreadPattern, "")
If removeChildNodes Then
'Empty this folder is clicked
Dim i As Integer = node.Nodes.Count - 1
While i >= 0
node.Nodes.RemoveAt(i)
System.Math.Max(System.Threading.Interlocked.Decrement(i), i + 1)
End While
Else
'Mark all as read is clicked
For Each child As RadTreeNode In node.Nodes
EmptyLayer(child, removeChildNodes)
Next
End If
End Sub
Protected Sub RadTreeView1_ContextMenuItemClick(ByVal sender As Object, ByVal e As RadTreeViewContextMenuEventArgs)
Dim clickedNode As RadTreeNode = e.Node
If (clickedNode.Value <> "") Then
e.MenuItem.Enabled = False
End If
Select Case e.MenuItem.Value
Case "Copy"
Dim clonedNode As RadTreeNode = clickedNode.Clone()
clonedNode.Text = String.Format("Copy of {0}", clickedNode.Text)
clickedNode.InsertAfter(clonedNode)
'set node's value so we can find it in startNodeInEditMode
clonedNode.Value = clonedNode.GetFullPath("/")
clonedNode.Selected = True
startNodeInEditMode(clonedNode.Value)
Exit Select
Case "NewLayer"
Dim NewLayer As New RadTreeNode(String.Format("New Layer {0}", clickedNode.Nodes.Count + 1))
NewLayer.Selected = True
NewLayer.ImageUrl = clickedNode.ImageUrl
clickedNode.Nodes.Add(NewLayer)
clickedNode.Expanded = True
'update the number in the brackets
'If Regex.IsMatch(clickedNode.Text, unreadPattern) Then
' clickedNode.Text = Regex.Replace(clickedNode.Text, unreadPattern, "(" + clickedNode.Nodes.Count.ToString() + ")")
'Else
' clickedNode.Text += String.Format(" ({0})", clickedNode.Nodes.Count)
'End If
' clickedNode.Font.Bold = True
'set node's value so we can find it in startNodeInEditMode
'NewLayer.Value = NewLayer.GetFullPath("/")
'startNodeInEditMode(NewLayer.Value)
Exit Select
Case "NewInsurer"
Dim NewLayer As New RadTreeNode(String.Format("New Insurer {0}", clickedNode.Nodes.Count + 1))
NewLayer.Selected = True
NewLayer.ImageUrl = "Images/Insurer.jpg"
NewLayer.Value = "9"
clickedNode.Nodes.Add(NewLayer)
clickedNode.Expanded = True
'update the number in the brackets
'If Regex.IsMatch(clickedNode.Text, unreadPattern) Then
' clickedNode.Text = Regex.Replace(clickedNode.Text, unreadPattern, "(" + clickedNode.Nodes.Count.ToString() + ")")
'Else
' clickedNode.Text += String.Format(" ({0})", clickedNode.Nodes.Count)
'End If
' clickedNode.Font.Bold = True
'set node's value so we can find it in startNodeInEditMode
'NewLayer.Value = NewLayer.GetFullPath("/")
'startNodeInEditMode(NewLayer.Value)
Exit Select
Case "EmptyLayer"
EmptyLayer(clickedNode, True)
Exit Select
Case "Delete"
clickedNode.Remove()
Exit Select
End Select
End Sub
Private Sub startNodeInEditMode(ByVal nodeValue As String)
'find the node by its Value and edit it when page loads
Dim js As String = "Sys.Application.add_load(editNode); function editNode(){ "
js += "var tree = $find(""" + RadTreeView1.ClientID + """);"
js += "var node = tree.findNodeByValue('" + nodeValue + "');"
js += "if (node) node.startEdit();"
js += "Sys.Application.remove_load(editNode);};"
RadScriptManager.RegisterStartupScript(Page, Page.[GetType](), "nodeEdit", js, True)
End Sub
Protected Sub btnAddLayer_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAddLayer.Click
'Dim foundNode As RadTreeNode = RadTreeView1.FindNodeByText("ROOT_NODE")
''TextBox1.Text = ""
''Dim foundNode As RadTreeNode = RadTreeView1.FindNodeByText("GROUP 2")
'If foundNode IsNot Nothing Then
' tbResults.Text = foundNode.Text
'End If
Dim newNode As New RadTreeNode(RadTreeView1.SelectedNode.Text)
'Dim rtv As New RadTreeView
'rtv = RadTreeView1
'If rtv.SelectedNode.Text = Nothing Then
' ' 'nothing is selected then create LAYER under root node
' RadTreeView1.SelectedNode.Text = "POLICY"
'End If
newNode.Value = ""
If (txtLayerPercentage.Text = "") Then
txtLayer.Text = txtLayer.Text
Else
txtLayer.Text = txtLayer.Text & " (" & txtLayerPercentage.Text & "%" & ")"
End If
newNode.Text = txtLayer.Text
newNode.ImageUrl = "Images/Layer.jpg"
'RadTreeView1.Nodes.Add(newNode)
RadTreeView1.SelectedNode.Nodes.Add(newNode)
'Add to the dropdown box
' ddInsurer.Items.Add(New ListItem(newNode.Text))
End Sub
Protected Sub btnDeleteLayer_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDeleteLayer.Click
'TextBox1.Text = ""
'If RadTreeView1.SelectedNode <> Nothing Then
RadTreeView1.SelectedNode.Remove()
' or ...
'RadTreeView1.Nodes.Remove(RadTreeView1.SelectedNode)
' or ...
'RadTreeView1.SelectedNode.ParentNode.Nodes.RemoveAt(RadTreeView1.SelectedNode.Index)
'End If
End Sub
Protected Sub btnInsurerAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnInsurerAdd.Click
Dim newNode As New RadTreeNode()
If (txtPercentage.Text = "") Then
newNode.Text = cmbInsurer.Text
Else
newNode.Text = cmbInsurer.Text & " (" & txtPercentage.Text & "%" & ")"
End If
newNode.ImageUrl = "Images/Insurer.jpg"
newNode.Value = "9"
RadTreeView1.SelectedNode.Nodes.Add(newNode)
'Add to the dropdown box
' ddInsurer.Items.Add(New ListItem(newNode.Text))
End Sub
Protected Sub btnXML_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnXML.Click
Dim tv As New RadTreeView
txtXML.Text = ""
tv.LoadXmlString(RadTreeView1.GetXml())
txtXML.Text = RadTreeView1.GetXml()
tv = RadTreeView1()
txtXML.Visible = True
exportToXml(RadTreeView1.GetXml(), "C:\\Temp\\cal_xml.xml")
End Sub
Public Shared Sub exportToXml(ByVal tv As String, ByVal filename As String)
Dim XmlDocument As New XmlDocument()
XmlDocument.LoadXml(tv)
XmlDocument.Save(filename)
End Sub
Protected Sub btnClear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClear.Click
txtXML.Text = ""
End Sub
'Protected Sub ddInsurer_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ddInsurer.SelectedIndexChanged
' Dim strInsurer As String = ""
' strInsurer = ddInsurer.SelectedIndex
'End Sub
Protected Sub RadTreeView1_NodeClick(ByVal o As Object, ByVal e As Telerik.Web.UI.RadTreeNodeEventArgs) Handles RadTreeView1.NodeClick
Dim str As String
Dim numPos As Int32 = 1
Dim strPer As String = "%"
Dim numUSPos As Int32 = 1
Dim numLen As Int32 = 0
Dim numLenParent As Int32 = 0
Dim strParent As String
txtPercentage.Text = ""
txtLayerPercentage.Text = ""
strParent = e.Node.Text
str = e.Node.Text
numLen = Len(str)
numLenParent = Len(strParent)
numPos = InStr(str, strPer)
numUSPos = InStr(str, "(")
If InStr(str, "(") Then
str = str.Substring(0, numUSPos - 1)
txtLayerPercentage.Text = Trim(strParent.Substring(numUSPos, numLenParent - 2 - numUSPos))
txtPercentage.Text = Trim(strParent.Substring(numUSPos, numLenParent - 2 - numUSPos))
End If
If str = "POLICY" Then
pnlGrp.Visible = False
pnlChild.Visible = False
btnAddLayer.Visible = True
btnEditLayer.Visible = False
txtLayer.Text = ""
btnDeleteLayer.Visible = True
btnChild.Enabled = True
btnGrp.Enabled = True
Else
If e.Node.Value = "" Then
'pnlGrp.Visible = True
'pnlChild.Visible = False
'btnAddLayer.Visible = False
'btnEditLayer.Visible = True
'txtLayer.Text = str
'btnDeleteLayer.Visible = True
'btnChild.Enabled = False
'btnGrp.Visible = True
pnlGrp.Visible = True
pnlChild.Visible = False
btnAddLayer.Visible = False
btnEditLayer.Visible = True
txtLayer.Text = str
btnDeleteLayer.Enabled = True
btnChild.Enabled = True
btnGrp.Enabled = True
Else
'pnlChild.Visible = True
'pnlGrp.Visible = False
'btnInsurerAdd.Visible = False
'btnInsurerEdit.Visible = True
cmbInsurer.SelectedValue = str
'btnInsurerDelete.Visible = True
'btnGrp.Visible = True
'btnChild.Enabled = False
pnlChild.Visible = True
pnlGrp.Visible = False
btnInsurerAdd.Visible = False
btnInsurerEdit.Visible = True
cmbInsurer.Text = str
btnInsurerDelete.Enabled = True
btnGrp.Enabled = False
btnChild.Enabled = False
End If
End If
'strParent = e.Node.ParentNode.Text.ToString()
End Sub 'RadTreeView1_NodeClick
Protected Sub RadTreeView1_NodeEdit(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadTreeNodeEditEventArgs) Handles RadTreeView1.NodeEdit
Dim nodeEdited As RadTreeNode = e.Node
Dim newText As String = e.Text
nodeEdited.Text = newText
End Sub
Protected Sub btnInsurerEdit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnInsurerEdit.Click
If (txtPercentage.Text = "") Then
RadTreeView1.SelectedNode.Text = cmbInsurer.Text
Else
RadTreeView1.SelectedNode.Text = cmbInsurer.Text & " (" & txtPercentage.Text & "%" & ")"
End If
End Sub
Protected Sub btnEditLayer_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEditLayer.Click
If (txtLayerPercentage.Text = "") Then
RadTreeView1.SelectedNode.Text = txtLayer.Text
Else
RadTreeView1.SelectedNode.Text = txtLayer.Text & " (" & txtLayerPercentage.Text & "%" & ")"
End If
End Sub
Protected Sub btnInsurerDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnInsurerDelete.Click
'If RadTreeView1.SelectedNode <> Nothing Then
RadTreeView1.SelectedNode.Remove()
' or ...
'RadTreeView1.Nodes.Remove(RadTreeView1.SelectedNode)
' or ...
'RadTreeView1.SelectedNode.ParentNode.Nodes.RemoveAt(RadTreeView1.SelectedNode.Index)
'End If
End Sub
End Class
3 Answers, 1 is accepted
0
Hi Krantikumar Jain,
For the first issue you can use OnClientContextMenuShowing event and enable/disable the items using the client-side API of the context menu.
Regarding the second question, I suggest you use OnClientNodeEditing event and cancel the editing of the node in case there's another node with the same text.
Regards,
Yana
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.
For the first issue you can use OnClientContextMenuShowing event and enable/disable the items using the client-side API of the context menu.
Regarding the second question, I suggest you use OnClientNodeEditing event and cancel the editing of the node in case there's another node with the same text.
Regards,
Yana
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.
0
Dave
Top achievements
Rank 1
Rank 1
answered on 25 Aug 2012, 10:28 PM
More broken links - waste of time.
0
Hi Dave,
You can refer to the different help articles below:
Kind regards,
Kate
the Telerik team
You can refer to the different help articles below:
- Client-side API of the contextmenu:
- http://www.telerik.com/help/aspnet-ajax/menu-client-side-objects.html
- http://www.telerik.com/help/aspnet-ajax/menu-radmenuitem-client-side.html
Kind regards,
Kate
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Explore the
Telerik Public Issue Tracking
system and vote to affect the priority of the items