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Web Services
asked on 03 Aug 2009, 04:20 PM
I have a rad panel that I have put a rad tree view in. However, now that the rad tree is within the panel, I cannot get it to collapse. It is always expanded and won't collapse even if you click the button. The two other panels have static data in them and they collapse fine. Can anyone help me with this issue? Here is my code
<%@ Master Language="VB" AutoEventWireup="false" Debug="True" %>
<%@ 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">
<%@ import namespace="System.Data" %>
<%@ import namespace="System.Data.Sql" %>
<%@ import namespace="System.Data.SqlClient" %>
<%@ import namespace="Telerik.Web.UI" %>
<script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
Dim tree As RadTreeView = DirectCast(RadPanelBar1.Items(0).FindControl("RadTreeView1"), RadTreeView)
'here is where the error is. it is saying that
'createtable is null
tree.DataSource = CreateTable()
tree.DataFieldID = "ID"
tree.DataFieldParentID = "ParentID"
tree.DataTextField = "Text"
tree.DataBind()
End If
End Sub 'page_load
'this function creates a datatable for the rad
'tree that is in the events panel
Private Function CreateTable() As DataTable
'set up my connection to the database
Dim conn As New SqlConnection
conn.ConnectionString = ConfigurationManager.ConnectionStrings("connectionString").ConnectionString
Dim table As DataTable = New DataTable()
table.Columns.Add("ID")
table.Columns.Add("ParentID")
table.Columns.Add("Text")
'this is a counter for the id fields
'of the data table
Dim count As Integer = 1
'this adds the parent categories to the
'datatable
Dim categoryQuery As New SqlCommand
conn.Open()
categoryQuery.Connection = conn
categoryQuery.CommandText = "select CategoryId, Name from categories"
Dim cdr As SqlDataReader = categoryQuery.ExecuteReader()
While cdr.Read()
If (cdr.Item(0).ToString <> "") Then
table.Rows.Add(New String() {count.ToString, Nothing, cdr.Item(1).ToString})
'we have to increment count to keep an id for the data table
count = count + 1
End If
End While 'while cdr.Read()
conn.Close()
conn.Open()
'this adds the events with their parent category
'id to the datatable
Dim eventQuery As New SqlCommand
eventQuery.Connection = conn
eventQuery.CommandText = "SELECT eventid, FK_CategoryID, name from events"
Dim edr As SqlDataReader = eventQuery.ExecuteReader()
While edr.Read()
If (edr.Item(0).ToString <> "") Then
table.Rows.Add(New String() {count.ToString(), edr.Item(1).ToString, edr.Item(2).ToString})
'we have to increment count to keep an id for the data table
count = count + 1
End If
End While 'while edr.Read()
Return table
End Function 'CreateGenreTable
</script>
<head runat="server">
<title></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
</telerik:RadScriptManager>
<telerik:RadPanelBar ID="RadPanelBar1" runat="server" Skin="Web20" ExpandMode="SingleExpandedItem">
<CollapseAnimation Type="None" Duration="100"></CollapseAnimation>
<Items>
<telerik:RadPanelItem runat="server" Text="Events">
<ItemTemplate>
<telerik:RadTreeView ID="RadTreeView1" runat="server" Skin="Web20">
<CollapseAnimation Type="OutQuint" Duration="100"></CollapseAnimation>
<ExpandAnimation Duration="100"></ExpandAnimation>
</telerik:RadTreeView>
</ItemTemplate>
</telerik:RadPanelItem>
<telerik:RadPanelItem runat="server" Text="Calendar">
<Items>
<telerik:RadPanelItem runat="server" Text="Child RadPanelItem 1">
</telerik:RadPanelItem>
<telerik:RadPanelItem runat="server" Text="Child RadPanelItem 2">
</telerik:RadPanelItem>
</Items>
</telerik:RadPanelItem>
<telerik:RadPanelItem runat="server" Text="Root RadPanelItem3">
<Items>
<telerik:RadPanelItem runat="server" Text="Child RadPanelItem 1">
</telerik:RadPanelItem>
<telerik:RadPanelItem runat="server" Text="Child RadPanelItem 2">
</telerik:RadPanelItem>
</Items>
</telerik:RadPanelItem>
</Items>
<ExpandAnimation Type="None" Duration="100"></ExpandAnimation>
</telerik:RadPanelBar>
<div>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
In case you want to see what I'm trying to do. You can go here
http://alpha.clickablecommunity.com/
<%@ Master Language="VB" AutoEventWireup="false" Debug="True" %>
<%@ 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">
<%@ import namespace="System.Data" %>
<%@ import namespace="System.Data.Sql" %>
<%@ import namespace="System.Data.SqlClient" %>
<%@ import namespace="Telerik.Web.UI" %>
<script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
Dim tree As RadTreeView = DirectCast(RadPanelBar1.Items(0).FindControl("RadTreeView1"), RadTreeView)
'here is where the error is. it is saying that
'createtable is null
tree.DataSource = CreateTable()
tree.DataFieldID = "ID"
tree.DataFieldParentID = "ParentID"
tree.DataTextField = "Text"
tree.DataBind()
End If
End Sub 'page_load
'this function creates a datatable for the rad
'tree that is in the events panel
Private Function CreateTable() As DataTable
'set up my connection to the database
Dim conn As New SqlConnection
conn.ConnectionString = ConfigurationManager.ConnectionStrings("connectionString").ConnectionString
Dim table As DataTable = New DataTable()
table.Columns.Add("ID")
table.Columns.Add("ParentID")
table.Columns.Add("Text")
'this is a counter for the id fields
'of the data table
Dim count As Integer = 1
'this adds the parent categories to the
'datatable
Dim categoryQuery As New SqlCommand
conn.Open()
categoryQuery.Connection = conn
categoryQuery.CommandText = "select CategoryId, Name from categories"
Dim cdr As SqlDataReader = categoryQuery.ExecuteReader()
While cdr.Read()
If (cdr.Item(0).ToString <> "") Then
table.Rows.Add(New String() {count.ToString, Nothing, cdr.Item(1).ToString})
'we have to increment count to keep an id for the data table
count = count + 1
End If
End While 'while cdr.Read()
conn.Close()
conn.Open()
'this adds the events with their parent category
'id to the datatable
Dim eventQuery As New SqlCommand
eventQuery.Connection = conn
eventQuery.CommandText = "SELECT eventid, FK_CategoryID, name from events"
Dim edr As SqlDataReader = eventQuery.ExecuteReader()
While edr.Read()
If (edr.Item(0).ToString <> "") Then
table.Rows.Add(New String() {count.ToString(), edr.Item(1).ToString, edr.Item(2).ToString})
'we have to increment count to keep an id for the data table
count = count + 1
End If
End While 'while edr.Read()
Return table
End Function 'CreateGenreTable
</script>
<head runat="server">
<title></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
</telerik:RadScriptManager>
<telerik:RadPanelBar ID="RadPanelBar1" runat="server" Skin="Web20" ExpandMode="SingleExpandedItem">
<CollapseAnimation Type="None" Duration="100"></CollapseAnimation>
<Items>
<telerik:RadPanelItem runat="server" Text="Events">
<ItemTemplate>
<telerik:RadTreeView ID="RadTreeView1" runat="server" Skin="Web20">
<CollapseAnimation Type="OutQuint" Duration="100"></CollapseAnimation>
<ExpandAnimation Duration="100"></ExpandAnimation>
</telerik:RadTreeView>
</ItemTemplate>
</telerik:RadPanelItem>
<telerik:RadPanelItem runat="server" Text="Calendar">
<Items>
<telerik:RadPanelItem runat="server" Text="Child RadPanelItem 1">
</telerik:RadPanelItem>
<telerik:RadPanelItem runat="server" Text="Child RadPanelItem 2">
</telerik:RadPanelItem>
</Items>
</telerik:RadPanelItem>
<telerik:RadPanelItem runat="server" Text="Root RadPanelItem3">
<Items>
<telerik:RadPanelItem runat="server" Text="Child RadPanelItem 1">
</telerik:RadPanelItem>
<telerik:RadPanelItem runat="server" Text="Child RadPanelItem 2">
</telerik:RadPanelItem>
</Items>
</telerik:RadPanelItem>
</Items>
<ExpandAnimation Type="None" Duration="100"></ExpandAnimation>
</telerik:RadPanelBar>
<div>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
In case you want to see what I'm trying to do. You can go here
http://alpha.clickablecommunity.com/
1 Answer, 1 is accepted
0
Hello,
Please check this forum post - I believe it will answer your question.
Regards,
Veselin Vasilev
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.
Please check this forum post - I believe it will answer your question.
Regards,
Veselin Vasilev
the Telerik team
Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.