Rad Editor is stuck in time. Today's web content is structured using DIVs, leaving tables for presenting data.

Examples like Telerik Web UI Editor Editable DIV Content Area Demo | Telerik UI for ASP.NET AJAX are so obsolete and shows that this control has been left behind. 

Will you ever support creating contents using DIV elements with a dialog box that allows to add CSS classes or define style settings?

 

I am filtering a grid (tableview) in javascript  to filter to a single condition. 

 

 $find(tableViewID).filter("Photo_Group", args.get_item().get_value(), "EqualTo");

 

However, where can I find how to filter to multiple conditions.  

Ie the above condition OR filter("Photo_Group", "-1", "EqualTo");

I can see how to do this using the Filtering control,  but I cannot show/use a filtering control on the page.     

Hi,

I need to restore the expanded state of a RadTreeList after a redirect. I am storing the expanded items in Session before the redirect. However, server-side expansion only expands the root, not the child items.

Can someone share a JavaScript example or approach to fully expand all previously expanded nodes by the user after a redirect using the stored session data?

If your approach works in Server Side, I will use it on my solution

Thanks team!

This is an example using server side, but it expands only the first root element (not sure why)

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using Telerik.Web.UI;

namespace SysMgmt.Groups
{
    public partial class GroupMaintenanceServer : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                RadTreeList1.NeedDataSource += RadTreeList1_NeedDataSource;
            }
        }

        protected void RadTreeList1_NeedDataSource(object sender, TreeListNeedDataSourceEventArgs e)
        {
            RadTreeList1.DataSource = GetData();
        }

        // ✅ Guardar los nodos expandidos antes del render
        protected void Page_PreRender(object sender, EventArgs e)
        {
            var expandedItems = RadTreeList1.Items
                .Where(i => i.Expanded)
                .Select(i => (int)i.GetDataKeyValue("ID"))
                .ToList();

            Session["ExpandedNodes"] = expandedItems;
        }

        protected void RadTreeList1_DataBound(object sender, EventArgs e)
        {
            if (Session["ExpandedNodes"] is List<int> expanded)
            {
                foreach (TreeListDataItem item in RadTreeList1.Items)
                {
                    int id = (int)item.GetDataKeyValue("ID");
                    if (expanded.Contains(id))
                        item.Expanded = true;
                }
            }
        }

        protected void RadTreeList1_ItemCommand(object sender, TreeListCommandEventArgs e)
        {
            if (e.CommandName == "EditItem" && e.Item is TreeListDataItem dataItem)
            {
                int id = (int)dataItem.GetDataKeyValue("ID");
                Response.Redirect($"EditPage.aspx?id={id}");
            }
        }

       
        private DataTable GetData()
        {
            DataTable table = new DataTable();
            table.Columns.Add("ID", typeof(int));
            table.Columns.Add("ParentID", typeof(int));
            table.Columns.Add("Text", typeof(string));
            table.Columns.Add("Value", typeof(string));

            // Root nodes
            table.Rows.Add(1, DBNull.Value, "Root 1", "A");
            table.Rows.Add(2, DBNull.Value, "Root 2", "B");

            // Children of Root 1
            table.Rows.Add(3, 1, "Child 1.1", "A1");
            table.Rows.Add(4, 1, "Child 1.2", "A2");

            // Children of Root 2
            table.Rows.Add(5, 2, "Child 2.1", "B1");
            table.Rows.Add(6, 2, "Child 2.2", "B2");

            // Sub-child
            table.Rows.Add(7, 3, "SubChild 1.1.1", "A1a");

            return table;
        }
    }
}

After upgrading to version 2026.1.211.462 of Telerik UI for ASP.NET AJAX , we are having a problem with the LoadSettings feature of the RadFilter.   It is generating this error for any existing filters.  We can delete and re-create filters and it seems to be find going forward but we have dozens of existing filters that will not load.

Unexpected character encountered while parsing value: . Path '', line 1, position 1.

I have a user with Win7 and IE8 who was experiencing the dreaded 'Sys' is undefined script error, when trying to load the page that has the RadEditor on it. He is running a clean install of Win7 and IE8. I was unable to reproduce this on my own clean install of Win7 and IE8.

Trythis in a dos box

regsvr32 softpub.dll
regsvr32 wintrust.dll
regsvr32 initpki.dll
regsvr32 dssenh.dll
regsvr32 rsaenh.dll
regsvr32 gpkcsp.dll
regsvr32 sccbase.dll
regsvr32 slbcsp.dll
regsvr32 cryptdlg.dll

It fixed all problems!

Language : vb

I have a table that contains a numeric field. Using this field value I generate variable numbers of CheckBoxes in a RadGrid PlaceHolder :

I am attempting reference the CheckBoxes in the selected row and do some processing if the a CheckBox is checked.

I can get the reference to the PlaceHolder : Dim phBlocksCheckBox As PlaceHolder = DirectCast(item.FindControl("phBlocksCheckBox"), PlaceHolder)

But the code to return the CheckBox reference is returning Nothing : Dim BlockCheckBox As CheckBox = DirectCast(phBlocksCheckBox.FindControl("BlockCheckBox_" & cbIndex), CheckBox)

Here is my code :

apsx :
    <div style="clear: both">
        <div style="float: right; margin-right: 10px;">
            <asp:Button ID="GenerateButton" runat="server" Text="Generate Cassette Labels" Disabled="True"/>
        </div>
    </div>

    <telerik:RadGrid ID="RadGrid1" runat="server" AllowPaging="True" AllowSorting="True" GridLines="None" AllowMultiRowSelection="True" AllowFilteringByColumn="True" EnableLinqExpressions="False">
        <MasterTableView AutoGenerateColumns="False">
            <PagerStyle AlwaysVisible="True"></PagerStyle>
            <Columns>
                <telerik:GridClientSelectColumn UniqueName="checkboxColumn1" HeaderTooltip="SELECT All" ShowSortIcon="False" ShowFilterIcon="False" Reorderable="False">
                    <HeaderStyle Width="30px" />
                </telerik:GridClientSelectColumn>
                <telerik:GridBoundColumn DataField="NumberOfBlocks" HeaderText="Block Count" UniqueName="NumberOfBlocks" AllowFiltering="False" Display="False">
                    <HeaderStyle Width="20px" />
                </telerik:GridBoundColumn>
                <telerik:GridTemplateColumn DataField="Block" HeaderText="Blocks" UniqueName="Blocks" AllowFiltering="False">
                    <ItemTemplate>
                        <asp:PlaceHolder ID="phBlocksCheckBox" runat="server" />
                    </ItemTemplate>
                </telerik:GridTemplateColumn>
            </Columns>
        </MasterTableView>
    </telerik:RadGrid>


vb :
    Public dt As DataTable = Nothing
    Protected Sub RadGrid_NeedDataSource(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs) Handles RadGrid1.NeedDataSource
        If dt Is Nothing Then
            Dim objRadGrid As RadGrid = CType(sender, RadGrid)
            Dim objCommand As New MySqlCommand
            dt = New DataTable()

 
            objCommand.CommandText = "SELECT Block AS NumberOfBlocks FROM samples"
            Call DBClass.TapDB("ConnStr", objCommand, "getRS", "", dt)

            objRadGrid.DataSource = dt
        End If
    End Sub

    Protected Sub RadGrid1_ItemDataBound(sender As Object, e As GridItemEventArgs) Handles RadGrid1.ItemDataBound
        'Ensure we are dealing with a data item (not header, footer, etc.)
        If TypeOf e.Item Is GridDataItem Then
            Dim item As GridDataItem = DirectCast(e.Item, GridDataItem)

            'Find the placeholder control defined in the ItemTemplate
            Dim phBlocksCheckBox As PlaceHolder = CType(item.FindControl("phBlocksCheckBox"), PlaceHolder)

            If phBlocksCheckBox IsNot Nothing Then
                Dim NumberOfBlocks As Integer = DataBinder.Eval(item.DataItem, "NumberOfBlocks")

                'Dynamically create and add checkboxes
                If NumberOfBlocks > 0 Then
                    For BlockIndex As Integer = 0 To NumberOfBlocks - 1
                        Dim BlockCheckBox As New CheckBox()
                        BlockCheckBox.ID = "BlockCheckBox_" & (BlockIndex + 1).ToString()
                        BlockCheckBox.Text = (BlockIndex + 1).ToString()
                        BlockCheckBox.Checked = True
                        phBlocksCheckBox.Controls.Add(BlockCheckBox)
                        phBlocksCheckBox.Controls.Add(New LiteralControl("    "))
                    Next
                End If
            End If
        End If
    End Sub


    Protected Sub Button_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles GenerateCassetteLabelsButton.Click
        Dim NumberOfBlocks As Integer = 0

        For Each item As GridDataItem In RadGrid1.SelectedItems
            NumberOfBlocks = CInt(item("NumberOfBlocks").Text)

            Dim phBlocksCheckBox As PlaceHolder = DirectCast(item.FindControl("phBlocksCheckBox"), PlaceHolder)
            If phBlocksCheckBox IsNot Nothing Then
HttpContext.Current.Response.Write("phBlocksCheckBox IsNot Nothing<br><br>")
                For cbIndex As Integer = 1 To NumberOfBlocks
HttpContext.Current.Response.Write("-BlockCheckBoxID : " & "BlockCheckBox_" & cbIndex & "<br><br>")
                    Dim BlockCheckBox As CheckBox = DirectCast(phBlocksCheckBox.FindControl("BlockCheckBox_" & cbIndex), CheckBox)

                    If BlockCheckBox IsNot Nothing Then
HttpContext.Current.Response.Write("BlockCheckBox IsNot Nothing<br><br>")
                        'Do something with BlockCheckBox.Text
HttpContext.Current.Response.Write("Block : " & BlockCheckBox.Text & "<br><br>")
                    End If
                Next
            End If
        Next

        RadGrid1.Rebind()
    End Sub

 

Hi , 

We have client facing issue where the RadTreeView control nested under RadComboBox is exceeding the popup space and having a page scroll how can i restrict it ?   Also  RadTreeview Nested under is not detecting the screen boundary and expanding the direction

Hi , 

I’m working on aligning the loading dropdown that renders under rcbSlide with the width of the RadComboBox, even when an additional icon is present. Since rcbSlide resides outside the RadComboBox container, I need guidance on how to ensure the dropdown inherits or matches the RadComboBox width consistently.

I have a simple TreeView

    <telerik:RadTreeView ID="radTreeViewIndex" runat="server">
                    </telerik:RadTreeView>

That I am databinding on the page load.

My query returns heirarchical records such as the following

SPOP   TheKey     SYear     Norder

Null        A             Adult          4000
Null        P             Pediatric    3000
A            A2022     2022          2500
A            A2021      2021         2500
A           A2020      2020        2500
P            P2022     2022          2000
P            P2021      2021         2000
P           P2020      2020        2000

On the page load, I call the Oracle query, get back a cursor and construct the treeview by binding a data table to it

        DataTable dt1 =
            new DataTable();
        da1.Fill(dt1);
        RadTreeView radTreeViewIndex = (RadTreeView)FindControl("radTreeViewIndex");
        radTreeViewIndex.NodeDataBound += new RadTreeViewEventHandler(radTVI_click);
        radTreeViewIndex.DataFieldParentID = "SPOP";
        radTreeViewIndex.DataFieldID = "theKey";
        radTreeViewIndex.DataTextField = "sYear";
        radTreeViewIndex.DataValueField = "sYear";

        radTreeViewIndex.DataSource = dt1;
        radTreeViewIndex.DataBind();

The tree expanded would look like

> Adult

      - 2022 

     -  2021

     -  2020

> Pediatric

      - 2022 

     -  2021

     -  2020

The databinding and expanding/collapsing is working fine

That I am trying to now do and figure out how best to do is to navigate and load a grid based upon the click of a year

So clicking on Adult or Pediatric Nodes would only expand or collapse the tree
Clicking on the Year node would then call an event that would pass in the population and the year and then load that grid (to the right of the tree)  So for clicking on (Adult > 2021 ) node - was thinking navigating back to the page witth these values set, the tree expanded to show the selected node and the grid populated to display the records for population = adult and year = 2021

I was thinking I would add the event to the NodeDataBound

    protected void radTVI_click(object sender, RadTreeNodeEventArgs e)
    {
        if (string.IsNullOrEmpty(e.Node.NavigateUrl))
            e.Node.Attributes["onclick"] = "return Redirect(https://myjunkurl.com);";

    }

And then work with it to basically ignore or only have expand or collapse on the clicks of Adult or Pediatric but otherwise generate the URL to call the page and pass in the SPop and Year to then load the tree and grid.

Hi The following Web resource is not loading with the latest telerik version 2024.****. and affecting pagination.  Can you please help if there is any css or C# code that may affect. 

The application is built on asp.net 4.8 webforms.  Also could you kindly treat it as high priority as its impacting clients.  

Issue :  The height and space margins are varying. 

Kindly let us know if you need further details 

Best Regards, 

Sunil Shankar S R