Last Updated: 29 May 2020 16:43 by ADMIN
I actually want a sample similar to facebook where you scroll down and the vertical scrollbar automatically adjust without a slidder or a button. 

So far, the provided samples are not really doing the job.

As suggested by Eyup Admin, i'm opening this feature request for a working sample using server side.

Last Updated: 29 May 2020 16:19 by Rodney Foley
ExcelML currently does not support multiple column headers (aka ColumnGroups). This was first requested in the forms back in 2012 and no feature request was created for ExcelML. It is important that ExcelML support ColumnGroups as Excel does support this functionality.
Last Updated: 29 May 2020 15:52 by ADMIN
A valid SQL statement should look like

SELECT * FROM Products WHERE ([Discontinued] = 1)


SELECT * FROM Products WHERE ([Discontinued] = 'True')

but RadGrid provides something like

([Discontinued] = True)

in the MasterTableView.FilterExpression property.

By default RadGrid filters the data on its own after retrieving the entire data set form the data source, and the filtering operation works like that.
If you will be using the filter expression provided by the grid in a custom data source operation you may need to tweak the string first.
Note that changing this may result in a breaking change if you are already using the current syntax.

Workaround: https://www.telerik.com/support/kb/aspnet-ajax/grid/details/get-sql-compliant-filterexpressions-from-radgrid
Last Updated: 29 May 2020 15:47 by ADMIN
I'm working on a project where I use RadScheduler TimeLineView (Grouping by resource) and one of the requirements is that they need the appointments that share a single resource to appear on the same row, instead of the current behaviour where they show on multiple rows.
I believe adding that feature to the scheduler would give a lot of flexibility in such situations.
Thank you very much
Last Updated: 29 May 2020 15:29 by ADMIN


i would love to have a n option to set the Gallerry to keep the title and text visible when the Gallery is in play mode, until the user pause the gallery or move the mouse out.

a work around was provided to me by Attila, which works fine, but i think it should be a built in property.


Thanks a lot,


Last Updated: 29 May 2020 15:15 by ADMIN
Created by: Panayotis
Comments: 1
Category: UI for ASP.NET AJAX
Type: Feature Request
GridAttachmentColumn malforms the String filepath, from "C\SomePath\SomeFile.PDF" to something like "C:" & vbBack &"SomePathSomeFile.PDF"

Steps to reproduce the error:

DataSource Bound to grid:

Private Function SomeTable() As DataTable
    Dim dt As New DataTable()
    dt.Columns.Add(New DataColumn("FieldName", Type.GetType("System.String")))
    row("FieldName") = "C:\SomeDirectory\RadGridExport.pdf"
    Return dt
End Function

GridAttachmentColumn markup as well as the ObjectDataSource that returns a byte array when user clicks on download attachment:

<telerik:GridAttachmentColumn DataSourceID="ObjectDataSource1"
    HeaderText="Attachment Column"
    ItemStyle-Width="36px" >
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server" SelectMethod="MySelectMethod" TypeName="MyApp">
        <asp:Parameter Name="FieldName" Type="String" />

MyApp.MySelectMethod that is supposed access the file by "filePath" and read it to byte, but the filePath is malformed, hence throws an exception.

Public Class MyApp
    <DataObjectMethodAttribute(DataObjectMethodType.Select, True)>
    Public Function MySelectMethod(filePath As String) As DataTable
        Dim dt As New DataTable("Base")
        Dim col As New DataColumn("FieldName")
        col.DataType = System.Type.GetType("System.Byte[]")
        Dim row As DataRow = dt.NewRow
        row(0) = My.Computer.FileSystem.ReadAllBytes(filePath)
        Return dt
    End Function
End Class

Last Updated: 29 May 2020 14:40 by ADMIN
The ASP.Net RadScheduler does not currently support recurring events in minute intervals (for example, every 15 minutes). Please add support for this. The feature would behave similarly to the feature in WinForms RadScheduler (Winforms RadScheduler does support minute interval recurring events). Thank you.
Last Updated: 29 May 2020 14:31 by ADMIN


If RadGrid has UseStaticHeaders enabled, different HTML Tables are rendered and instructing JAWS to read the tables one by one will also read the Header. It would say Header with "n" number of columns and one rows, since the table has only one row and that is containing the Column Names.


It would be great, if the grid with Static Header could be made in a way that JAWS will only treat the grid as one Table instead of two separate tables.

Workaround and discussion:

Last Updated: 29 May 2020 14:26 by ADMIN
Currently, when the InputType=Text and AllowCustomEntry is set to true, the AutoCompleteBox does not persist the value of the entry when an item from the dropdown is chosen. 
Last Updated: 29 May 2020 14:06 by ADMIN
Created by: Chris
Comments: 0
Category: UI for ASP.NET AJAX
Type: Feature Request
Currently the set_value() method of the RadNumericTextBox throws an exception if null is passed to it as value while having the AllowOutOfRangeAutoCorrect property is set to true. This does not happen if the AllowOutOfRangeAutoCorrect is left as default (false).

Last Updated: 28 May 2020 07:53 by ADMIN
Created by: Yogesh
Comments: 3
Category: UI for ASP.NET AJAX
Type: Feature Request
We are using Telerik Ajax controls in our web site. We need a functionality where user can read a barcoded value using camera device or barcode image on a web page.

We found that Ajax Barcode control has only Barcode generator functionality.

Is there a way we can read barcode value on web site?
Last Updated: 27 May 2020 16:26 by ADMIN
Created by: Mohammed
Comments: 1
Category: AsyncUpload
Type: Feature Request

Hi guys,

I can see async.concurrent feature in kendo ui upload control, do we have this feature or can have it in ajax upload control ? 



Last Updated: 25 May 2020 11:26 by ADMIN

A "Control 'RadMultiSelect1' referenced by the ControlToValidate property of 'MultiSelectValidator1' cannot be validated" error is thrown when the RadMultiSelect id is passed to the ControlToValidate property of the RequiredFieldValidator or CustomValidator.

Workaround: Using a CustomValidator with no ControlToValidate

<telerik:RadMultiSelect ID="RadMultiSelect1" runat="server" DataTextField="text" DataValueField="value">
        <telerik:MultiSelectItem Text="Item 1" Value="1"></telerik:MultiSelectItem>
        <telerik:MultiSelectItem Text="Item 2" Value="2"></telerik:MultiSelectItem>
        <telerik:MultiSelectItem Text="Item 3" Value="3"></telerik:MultiSelectItem>

<telerik:RadButton runat="server" ID="RadButton1" Text="Postback" AutoPostBack="true" />

<asp:CustomValidator ErrorMessage="Please select an item" ClientValidationFunction="ClientValidationFunction" runat="server" />
    function ClientValidationFunction(sender, args) {
        var multiselect = $find("<%= RadMultiSelect1.ClientID %>");

        if (multiselect.get_value().length == 0) {
            args.IsValid = false;

Last Updated: 22 May 2020 13:16 by ADMIN
Created by: Peter Milchev
Comments: 0
Category: AsyncUpload
Type: Feature Request
Currently the AsyncUpload saves the chunks in the Temporary folder using the original name of the file, the Process method of the Custom handler. When the Temporary folder name is very long, it can hit the Windows path length limitation of 260 symbols.
Last Updated: 22 May 2020 08:37 by ADMIN
RadChat to provide a way to separate text messages on different days with a date stamp
Last Updated: 19 May 2020 06:41 by ADMIN
Created by: XicoFininho
Comments: 1
Category: PdfViewer
Type: Feature Request

Hi support,

Could you please let us know if you will be adding signature and annotations to the PDF viewer?

If so could you give me an estimate when this could be expected?

I'm currently looking at another product that has this facilities but would prefer to continue to use Telerik.

Thank you.


Kind Regards,



Last Updated: 12 May 2020 13:22 by ADMIN
Created by: Lennart Burkels
Comments: 0
Category: Wizard
Type: Feature Request
Would be great if the "isbreak" option like in the radtabstrip is also available for the radwizard tabstrip. See attached image (created by your colleague btw)
Last Updated: 08 May 2020 17:41 by ADMIN
There should be RadGrid.ExportSettings.WorksheetName property to name a Sheet inside the Excel file, instead of having it named after the RadGrid.ExportSettings.FileName property as well as to avoid additional coding to Work around this.
Last Updated: 08 May 2020 17:38 by ADMIN
Created by: Dan Avni
Comments: 0
Category: UI for ASP.NET AJAX
Type: Feature Request
When resizing a column in RTL, expectation is to use the left side of a column to expand/shrink it. Instead I have to use the right side. Grabbing the left side resizes the next column on the left and is very confusing for people who are used to think in RTL
Last Updated: 08 May 2020 16:15 by ADMIN
I have two dates for a Task[Eg: Plan Dates & Actual Dates]. I want to show both plan and actual dates in same row, both with different colors. Below I have attached an image for reference.

To show both Planned and Actual dates(if any) for a particular single task on the same row with different colors for both.
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