Questions on UI for ASP.NET AJAX Forum

1 answer

155 views

I'm using a radgrid with a gridbuttoncolumn as the last column in the grid. It has a delete command.

How would I prevent the button from appearing for a single row? The data is sorted by PK "id" field. It's the first item in the grid (id=1) that I do not want anyone to delete. Is there any way to hide the delete button for this particular row? Thanks.

Grid

answered on 25 Oct 2010

1 answer

113 views

[Solved] Grid

Hello

I'm trying to access GridBoundColumns data. It is returning ' ' when that cell is blank. Is something wrong in the code?

Thanks
Neelima

Private Sub RadgridDestination_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadgridDestination.SelectedIndexChanged

Dim row As GridDataItem = RadgridDestination.Items(RadgridDestination.SelectedIndexes(0))

With uc_Addr 'uc_Addr is a UserControl

.Addr2 = row("Address2").Text ' here .Addr2 =   when Address2 columnis blank

End With

End Sub

<telerik:RadGrid ID="RadgridDestination" runat="server"

AllowSorting="True" ShowGroupPanel="True"

AutoGenerateColumns="False"

Skin="Sunset" AllowPaging="True" GridLines="None">

<GroupingSettings ShowUnGroupButton="True" />

<ClientSettings AllowDragToGroup="True" allowcolumnsreorder="True"

columnsreordermethod="Reorder" reordercolumnsonclient="True" >

</ClientSettings>

<MasterTableView EditMode="InPlace" DataKeyNames="Destination_ID" GroupLoadMode="Client" >

<CommandItemSettings ExportToPdfText="Export to Pdf"></CommandItemSettings>

<Columns>

<telerik:GridBoundColumn DataField="Addr2" HeaderText="Address2" UniqueName="Address2" ReadOnly="true"></telerik:GridBoundColumn>

'

</Columns>

<EditFormSettings>

<EditColumn UniqueName="EditCommandColumn1"></EditColumn>

</EditFormSettings>

</MasterTableView>

</telerik:RadGrid>

Grid

answered on 25 Oct 2010

5 answers

161 views

Issue with dynamically generated pageview

hi,

I have created a dynamic tab function. When i click button1 it will create dynamic tab and pageview for that tab. But when i deleted that tab that pageview is not deleting. Can any one help me to fix this

HERE IS MY SAMPLE CODE

    
            using System; 
        
            using System.Data; 
        
            using System.Configuration; 
        
            using System.Collections; 
        
            using System.Web; 
        
            using System.Web.Security; 
        
            using System.Web.UI; 
        
            using System.Web.UI.WebControls; 
        
            using System.Web.UI.WebControls.WebParts; 
        
            using System.Web.UI.HtmlControls; 
        
            using Telerik.WebControls; 
        
            using Telerik; 
        
            public partial class Radstrip2 : System.Web.UI.Page 
        
            { 
        
                protected System.Web.UI.WebControls.Label PageContent; 
        
                protected System.Web.UI.WebControls.Repeater BuildingSummary; 
        
                protected Telerik.WebControls.PageView PageView1; 
        
                protected void Page_Load(object sender, EventArgs e) 
        
                { 
        
                    if (!Page.IsPostBack) 
        
                    { 
        
                        Tab tab = new Tab(); 
        
                        tab.Text = string.Format("New Page {0}", 1); 
        
                        RadTabStrip1.Tabs.Add(tab); 
        
                        PageView pageView = new PageView(); 
        
                        RadMultiPage1.PageViews.Add(pageView); 
        
                        BuildPageViewContents(pageView, RadTabStrip1.Tabs.Count); 
        
                        RadTabStrip1.SelectedIndex = 0; 
        
                    } 
        
                } 
        
                private void BuildPageViewContents(PageView pageView, int index) 
        
                { 
        
                    pageView.ID = "Page " + index.ToString(); 
        
                    pageView.Controls.Add(new LiteralControl(" <B>New page</B>" + (index).ToString())); 
        
                } 
        
                protected void Button1_Click(object sender, EventArgs e) 
        
                { 
        
                    Tab tab = new Tab(); 
        
                    tab.Text = string.Format("New Page {0}", RadTabStrip1.Tabs.Count + 1); 
        
                    RadTabStrip1.Tabs.Add(tab); 
        
                    PageView pageView = new PageView(); 
        
                    pageView.ID = "Page " + pageView.Index.ToString(); 
        
                    RadMultiPage1.PageViews.Add(pageView); 
        
                    BuildPageViewContents(pageView, RadTabStrip1.Tabs.Count); 
        
                    RadTabStrip1RadTabStrip1.SelectedIndex = RadTabStrip1.SelectedIndex + 1; 
        
                    RadMultiPage1.SelectedIndex = RadTabStrip1.SelectedIndex; 
        
                } 
        
                protected void Button2_Click(object sender, EventArgs e) 
        
                { 
        
                    Tab currentTab = RadTabStrip1.InnerMostSelectedTab; 
        
                    if (currentTab != null) 
        
                    { 
        
                        ITabContainer owner = currentTab.Owner; 
        
                        owner.Tabs.Remove(currentTab); 
        
                        //RadMultiPage1.PageViews.Remove(currentTab.PageView); 
        
                        if (owner.Tabs.Count > 0) 
        
                        { 
        
                            owner.SelectedIndex = 0; 
        
                        } 
        
                    } 
        
                } 
        
                protected void RadMultiPage1_PageViewItemCreated1(PageView view, int viewIndex) 
        
                { 
        
                    BuildPageViewContents(view, viewIndex + 1); 
        
                } 
        
            }

TabStrip

answered on 25 Oct 2010

1 answer

331 views

RadGrid radio button

I have a very simple Grid with a template field containing a radio button:

<telerik:RadGrid ID="rg_VehicleImages" runat="server"

AllowAutomaticDeletes="True" AutoGenerateDeleteColumn="True" CssClass="radgrid"

DataSourceID="sds_ImagesVehicle" GridLines="None" Width="220px">

<mastertableview autogeneratecolumns="False" datakeynames="IDImages"

datasourceid="sds_ImagesVehicle">

<rowindicatorcolumn>

<HeaderStyle Width="20px" />

</rowindicatorcolumn>

<expandcollapsecolumn>

<HeaderStyle Width="20px" />

</expandcollapsecolumn>

<Columns>

<telerik:GridBoundColumn DataField="IDimages" DefaultInsertValue=""

HeaderText="" ItemStyle-ForeColor="White" ItemStyle-Width="2px"

SortExpression="True" Visible="True">

<HeaderStyle Width="2px" />

<ItemStyle ForeColor="White" Width="2px" />

</telerik:GridBoundColumn>

<telerik:GridImageColumn AlternateText="Thumbnail"

DataImageUrlFields="FilePath, ThumbnailName" DataImageUrlFormatString="{0}/{1}"

DataType="System.String" FooterText="ImageColumn footer" HeaderText=""

ImageAlign="Middle" UniqueName="vehicleimage">

<HeaderStyle Width="75px" />

</telerik:GridImageColumn>

<telerik:GridBoundColumn DataField="ThumbnailName" DefaultInsertValue=""

HeaderText="ThumbnailName" SortExpression="ThumbnailName"

UniqueName="ThumbnailName" Visible="False">

</telerik:GridBoundColumn>

<telerik:GridTemplateColumn DefaultInsertValue="" UniqueName="rbt_VehicleImage">

<ItemTemplate>

<asp:RadioButton ID="rbt_VehicleImage" GroupName="MyGroup"

onclick="MyClick(this,event)" runat="server" />

</ItemTemplate>

</telerik:GridTemplateColumn>

</Columns>

</mastertableview>

<clientsettings>

<clientevents onrowdblclick="RowClick" />

</clientsettings>

</telerik:RadGrid>

The grid displays images of a vehicle selected from a database on the key field IDVehicle where tbl_Images.IDVehicle = tbl_Vehicles.IDVehicle

There may be many images for the vehicle so I need to be able to allow the user to select one image as the 'default' or main image to use on reports. To do this I thought it would be simple to add a radio button to the grid so that when the user selectes the radio button the database would be updated so that the DefaultImage field (SQLDataType = BIT) would be set to True for the selected radio button and all of the other buttons with the same IDVehicle would be set to False. Something like:

Protected Sub rg_VehicleImages_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles rg_VehicleImages.ItemDataBound

If TypeOf e.Item Is GridDataItem Then

Dim item As GridDataItem = DirectCast(e.Item, GridDataItem)

Dim RadioBtn As RadioButton = DirectCast(item.FindControl("rbt_VehicleImage"), RadioButton)

If RadioBtn.Checked = False Then

Dim sql As String

Dim strConnString As [String] = System.Configuration.ConfigurationManager.ConnectionStrings("CF_SQL_Connection").ConnectionString()

sql = "UPDATE CF_Images SET DefaultImage = @Value WHERE IDImages = @IDImages"

Dim connection As New SqlConnection(strConnString)

Dim command As New SqlCommand(sql, connection)

Dim IDImages As Int32 = DirectCast(item.GetDataKeyValue("IDImages"), Int32)

command.Parameters.Add("@IDImages", SqlDbType.Int).Value = IDImages

command.Parameters.Add("@Value", SqlDbType.Int).Value = "0"

command.Connection.Open()

command.ExecuteNonQuery()

command.Connection.Close()

Else

Dim sql As String

Dim strConnString As [String] = System.Configuration.ConfigurationManager.ConnectionStrings("CF_SQL_Connection").ConnectionString()

sql = "UPDATE CF_Images SET DefaultImage = @Value WHERE IDVehicles = @IDVehicles AND IDImages = @IDImages"

Dim connection As New SqlConnection(strConnString)

Dim command As New SqlCommand(sql, connection)

Dim IDImages As Int32 = DirectCast(item.GetDataKeyValue("IDImages"), Int32)

Dim IDVehicles As String = Request.QueryString("IDVehicles")

command.Parameters.Add("@IDVehicles", SqlDbType.Int).Value = IDVehicles

command.Parameters.Add("@IDImages", SqlDbType.Int).Value = IDImages

command.Parameters.Add("@Value", SqlDbType.Int).Value = "1"

command.Connection.Open()

command.ExecuteNonQuery()

command.Connection.Close()

End If

End Sub

Of course this does not work. I am not sure if it is because I am attempting this using the Grid ItemDataBound argument and not one associated with the radio button.

Any help much appreciated.

Grid

answered on 25 Oct 2010

1 answer

70 views

[Solved] Editor set content without set focus

Hello,

I have a code to set content of the editor when it get blur.

function OnClientLoad(editor, args) {

var element = document.all ? editor.get_document().body : editor.get_document();

$telerik.addExternalHandler(element, "blur", function(e) {

if (editor.get_text() == "") {

editor.set_html("content");

}

});

}

but It set the focus back to editor.

I want to set the editor content without set it's focus.

Thanks,
Mohamed Ramadan

Editor

answered on 24 Oct 2010

0 answers

77 views

rtl

when I use radcombobox with rtl property, the values appears first left to right side and then the control has refresh and values appears as expected

ComboBox

asked on 24 Oct 2010

4 answers

137 views

RadGrid update issue

Hi Telerik,

I have a radgrid. When i double click a particular row i get the grid in edit mode.(which i have done using javascript). I am using inplace editmode. I want to update the grid and save the values of the row to the database on button click event. I am using an asp button which is placed outside the grid. I am able to change the value in each cell, but i am not able to read the changed values. I don't have any unique columns. So i have not set datakeyname property. I am using grid template columns in which i have different controls for each column(dropdownlist,checkbox,textbox). Please help me in this regard. Reply me asap.

Thanks in advance,
Priya

Grid

answered on 24 Oct 2010

1 answer

162 views

Dynamically added RadTreeView not visible

HI

I'm adding a RadTreeView dynamically, then adding some nodes using LoadXmlString.

The Treeview is not visible after loading. But checking the source code, its there in the page, with nodes correctly added, just invisible.

What am I doing wrong?

Here is the creation code
// adding placeholder first recommdended by Telerik
PlaceHolder TVPanel = new PlaceHolder();
this.Form.Controls.Add(TVPanel);

// create a new radtreeview object

RadTreeView Rad1 = new RadTreeView();

Rad1.ID = "Rad1";

Rad1.Visible = true;

TVPanel.Controls.Add(Rad1);

// create a new radtreeview object
RadTreeView Rad1 = new RadTreeView();
Rad1.ID = "Rad1";
Rad1.Visible = true; // doesnt make a difference
TVPanel.Controls.Add(Rad1);

String TreeViewNodes = Navigator_GetContent;
Rad1.LoadXmlString(TreeViewNodes);

PlaceHolder TVPanel = new PlaceHolder();

this.Form.Controls.Add(TVPanel);

// create a new radtreeview object

RadTreeView Rad1 = new RadTreeView();

Rad1.ID = "Rad1";

Rad1.Visible = true;

TVPanel.Controls.Add(Rad1);

// then generate the treeview content

String TreeViewNodes = Navigator_GetContent("Navigate_GetPlaceChecklist.xquery", "");

// attach it

Rad1.LoadXmlString(TreeViewNodes);

PlaceHolder TVPanel = new PlaceHolder();

// adding placeholder first recommdended by Telerik

PlaceHolder TVPanel = new PlaceHolder();

this.Form.Controls.Add(TVPanel);

// create a new radtreeview object

RadTreeView Rad1 = new RadTreeView();

Rad1.ID = "Rad1";

Rad1.Visible = true;

TVPanel.Controls.Add(Rad1);

// then generate the treeview content

String TreeViewNodes = Navigator_GetContent("Navigate_GetPlaceChecklist.xquery", "");

// attach it

Rad1.LoadXmlString(TreeViewNodes);

this.Form.Controls.Add(TVPanel);

// create a new radtreeview object

RadTreeView Rad1 = new RadTreeView();

Rad1.ID = "Rad1";

Rad1.Visible = true;

TVPanel.Controls.Add(Rad1);

// then generate the treeview content

String TreeViewNodes = Navigator_GetContent("Navigate_GetPlaceChecklist.xquery", "");

// attach it

Rad1.LoadXmlString(TreeViewNodes);

// Where String Navigator_GetContent is valid Tree Node text

TreeView

answered on 24 Oct 2010

6 answers

264 views

[Solved] XMLHttpPanel Callback Loading Error...

Hi, I try to use RadXMLHttpPanel to load image for each radgrid row during OnRowSelected client event

<ClientEvents OnRowSelected="RowSelected" />. I got this error:
XMLHttpPanel Callback Loading Error:
Exception=The target 'contentControl$RadXmlHttpPanel1' for callback could not be found or did not implement ICallBackEventHandler (screenshot attached). I am following your TELERIK.SALESDASHBOARD demo with some modifications. Below are the source codes that cause this error

.aspx codes:

<%@ Control Language="VB" AutoEventWireup="false" CodeFile="BatchDetails.ascx.vb" Inherits="Controls_DocumentInquiry_BatchDetails" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<telerik:RadScriptBlock ID="RadScriptBlock1" runat="server">

function RowSelected(sender, eventArgs)

{

var orderID = sender.get_masterTableView().get_dataItems()[eventArgs.get_itemIndexHierarchical()].getDataKeyValue("BatchNumber");

alert(orderID);

var oXmlPanel = $find("<%= RadXmlHttpPanel1.ClientID %>");

oXmlPanel.set_value(orderID);

}

</script>

</telerik:RadScriptBlock>

<asp:Label runat="server" ID="batchdetailsTitle" CssClass="detailsTitle">Orders for</asp:Label>

<asp:LinkButton runat="server" ID="prevPage" CssClass="prevPage">Previous</asp:LinkButton>

<asp:LinkButton runat="server" ID="nextPage" CssClass="nextPage">Next</asp:LinkButton>

</div>

<telerik:RadGrid AllowFilteringByColumn="true" AllowSorting="true" ShowGroupPanel="false" Height="300px" BackColor="#393939"

ID="rgBatchDetails" runat="server" AllowPaging="true" PageSize="10" Width="480px"

OnPreRender="rgBatchDetails_PreRender" OnNeedDataSource="rgBatchDetails_NeedDataSource" OnSelectedIndexChanged="rgBatchDetails_SelectedIndexChanged" >

</ClientSettings>

<MasterTableView AutoGenerateColumns="false" PagerStyle-Mode="NextPrevAndNumeric" ClientDataKeyNames="BatchNumber,ImageFile"

TableLayout="Fixed">

<telerik:GridBoundColumn DataField="BatchNumber" HeaderText="Batch Number" AutoPostBackOnFilter="true" ShowFilterIcon="false" HeaderStyle-Width="60px" FilterControlWidth="35px">

</telerik:GridBoundColumn>

<telerik:GridNumericColumn DataField="ImageFile" HeaderText="Image File" AutoPostBackOnFilter="true" ShowFilterIcon="false" HeaderStyle-Width="60px" FilterControlWidth="35px">

</telerik:GridNumericColumn>

<telerik:GridBoundColumn DataField="MICRValue" HeaderText="MICR/OCR" HeaderStyle-Width="300px" FilterControlWidth="260px">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Amount" HeaderText="Amount" FilterControlWidth="70px">

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

</div>

<telerik:RadXmlHttpPanel ID="RadXmlHttpPanel1" runat="server" OnServiceRequest="RadXmlHttpPanel1_ServiceRequest" RenderMode="Block">

<asp:Image ID="imgDocumentImage" runat="server" Height="300px" Width="500px"/>

</telerik:RadXmlHttpPanel>

</div>

<telerik:RadAjaxLoadingPanel ID="BatchesLoadingPanel" runat="server"></telerik:RadAjaxLoadingPanel>

</div>

.vb codes:
When I click a TreeNode (LoadOnDemand: TreeNodeExpandMode.ServerSideCallBack) on the main aspx page, it would load this control.

Imports

Telerik.Web.UI

Imports

System

Imports

System.Linq

Imports

System.Linq.Expressions

Imports

System.Web.UI

Imports

System.Data

Partial

Class Controls_DocumentInquiry_BatchDetails

Inherits ContentControl

Protected Sub RadXmlHttpPanel1_ServiceRequest(ByVal source As Object, ByVal e As RadXmlHttpPanelEventArgs) Handles RadXmlHttpPanel1.ServiceRequest

Dim BatchNumber = e.Value.ToString

imgDocumentImage.ImageUrl = "Image.aspx?ImageLocation=00000481.TIF"

End Sub

Protected

Sub Page_PreRender(ByVal sender As Object, ByVal e As EventArgs)

Dim ajaxManager As RadAjaxManager = RadAjaxManager.GetCurrent(Page)

ajaxManager.AjaxSettings.AddAjaxSetting(rgBatchDetails, rgBatchDetails, BatchesLoadingPanel)

End Sub

Protected Sub rgBatchDetails_PreRender(ByVal sender As Object, ByVal e As EventArgs)

If rgBatchDetails.MasterTableView.Items.Count > 0 And rgBatchDetails.SelectedItems.Count = 0 Then

rgBatchDetails.MasterTableView.Items(0).Selected =

True

End If

End Sub

Protected Sub rgBatchDetails_NeedDataSource(ByVal source As Object, ByVal e As GridNeedDataSourceEventArgs)

If Session("dsBatchData") Is Nothing Then

Else

rgBatchDetails.DataSource = Session(

"dsBatchData")

End If

End Sub

Thank you
Quan

XmlHttpPanel

answered on 23 Oct 2010

2 answers

542 views

RadComboBox client event onload

Hi!

If I want to change the selected item on a RadComboBox at onload (on the client), how can I do that? The real problem is I think is finding a suitable event to call $find in. If I call $find in document.onload it just restuns null.

I have been looking for something similar to the ClientEvents on the RadTextBox but I can't find any thing like it for the RadComboBox.

ComboBox

answered on 23 Oct 2010