Hi,

I isolated this script to display overlay drawer but it not working properly, what am I missing?:

I checked the demo at https://demos.telerik.com/aspnet-ajax/window/examples/rendermodes/defaultcs.aspx?skin=MetroTouch with render mode set to classic in Chrome's Dev Tools > Mobile device emulator. I noticed a vertical line between the td cells in the title bar row as shown in screenshot below. I also noticed a similar issue with Metro skin in classic render mode. If I view the same in non-mobile mode in Chrome then this issue disappears. Perhaps, its some styling issue, but I could not find any CSS causing this.

It makes the title bar look non-uniform and not good in appearance.

What is causing the break among the td cells in the title bar for this case? (i.e. vertical line can be seen where the first td cell in title bar ends and then where the third td cell begins)

However, I did find a workaround solution using the  jquery code below. 

$(".RadWindow:visible").each((index, emt) => {
    $(this).find("tr.rwTitleRow td.rwTopLeft, .RadWindow tr.rwTitleRow td.rwTopRight").css("display", "none");
    $(this).find("tr.rwTitleRow td.rwTitlebar").attr("colspan", "3");
});

I have encountered a niche issue I'm trying to solve. I have a grid with EnableViewState set to false. Based on this, the control state within the grid is used to manage things like sort expressions.

My issue is simply this:

1. Page load
2. Programmatically add columns to a grid
3. On the UI, sort on a column, and its name for example is 'My Column', this becomes 'My Column ASC'
4. On our app are objects in which its name we can add as a column to the same grid
5. Somewhere in our app I rename the object's name to something else like 'My New Column' - note the sort expression is still 'My Column ASC'
6. Back to the grid, I cause a postback (e.g., rebind) or reorder a column, or sort, etc.
7. The columns need to be re-added (I've covered a case to exclude the column with the old name)
8. Before columns are added again, I manually clear sort expressions on the grid
9. While debugging, I found that in the ColumnCreated event, the grid sort expressions restore to what they were before the postback, and I see 'My Column ASC' - I find that whenever adding a SortExpression referencing a non-existing column, the program always breaks

I debugged against a few events of the grid and found that in ColumnCreated (after NeedDataSource) the grid restored its sort expressions from what I presume is the control state. So, this was between NeedDataSource and ColumnCreated.

When exactly did the sort expressions get restored, and is there an event I can listen to?

Good morning once again.

Today I am trying to apply an image to the RadImageButton, however only the Text is showing, never the image.  Not sure what the issue is.

Note: there is no code behind for this button yet, its just static for testing purposes. 

<telerik:RadImageButton ID="RadImageButton1" runat="server" Text="Cat II/III" Width="50px" Height="50px">
            <Image Url="Content/Images/Cat3.png" />
        </telerik:RadImageButton>

Hello

I have several RadGrids with custom css applied to the columns.  Everything works as intended.  However, when a column is sorted, telerik applied the .rgSorted css and this completely defeats the purpose of the gird (in our application).  What is the procedure to DISABLE or DELETE the .rgSorted css, as this particular class will never be needed or used. 

Note: any css class definition with !important cannot be used in this context.

Thank you

I'm experiencing an issue where the page becomes unresponsive for a long time whenever any Telerik control (such as refresh or loader) is triggered. The page keeps loading indefinitely, causing significant delays, and eventually, the page becomes unresponsive.

Additionally, the following error appears in the browser console:

Uncaught Sys.WebForms.PageRequestManagerTimeoutException: Sys.WebForms.PageRequestManagerTimeoutException: The server request timed out.
at Error.create (https://test.plc.com/GS/Telerik.Web.UI.WebResource.axd?...:6:2736)
at Sys.WebForms.PageRequestManager._createPageRequestManagerTimeoutError (https://wpinhouse.knpc.com/GPCS/Telerik.Web.UI.WebResource.axd?...:15:11219)
at Sys.WebForms.PageRequestManager._onFormSubmitCompleted (https://wpinhouse.knpc.com/GPCS/Telerik.Web.UI.WebResource.axd?...:15:11219)

The issue arises when interacting with Telerik controls that trigger a page request, causing the page to hang and ultimately become unresponsive.

issue started from Feb 17 2025

After updating to the latest version (2025.1.218), I received an error on only one of my pages where I'm using the asp:RequiredFieldValidator.

The error stated that WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'...

Initially, I added the script mapping to the global.asax.cs page, but then discovered I could just disable UnobtrusiveValidation in the web.config.

The error was resolved with each of these solutions, but I wanted to get away from modifying the global.asax page, so I went with the web.config setting.

My questions are what has changed that led to this error, and which method is recommended?  What are the ramifications of simply disabling it in the web.config?

I am getting error "You are trying to navigate to a non-existing folder or you do not have proper permissions to view this folder.
Please, contact the administrator." in my production environment. It is happening randomly. 

Thanks.

got this error

'Could not load file or assembly 'Telerik.Web.UI, Version=2024.3.805.462, Culture=neutral, PublicKeyToken=121fae78165ba3d4' or one of its dependencies. Invalid pointer (Exception from HRESULT: 0x80004003 (E_POINTER))'