Hello Progress team,

we're using the HtmlChart and RadialGauge components of your Telerik for AJAX suite and are encountering some inconsistencies between the two.

To be able to use the exportable SVGs of those components server-side, we've extended your classes and added two asp:HiddenFields each, so we can post the SVG and the dimensions back to the server for further processing. (Setting the values is handled in a button OnClientClick JavaScript function, that's irrelevant to this thread.)

As of 2019, when we first introduced the respective feature in our software, the code looked like this:

• Similar for both components
• In both cases the additional HiddenFields get added to the Controls-List "OnInit" before the base.OnInit-event.
• In both cases we had to override the "Render"-function to also render the HiddenField-Controls to the HTML.

public class ExportableRadHtmlChart : RadHtmlChart, INamingContainer
{
    private HiddenField _svgData = new HiddenField();
    private HiddenField _svgDimensions = new HiddenField();
    public ExportableRadHtmlChart()
    {
        _svgData.ID = "SVGData";
        _svgDimensions.ID = "SVGDimensions";
    }

    protected override void OnInit(EventArgs e)
    {
        Controls.Add(_svgData);
        Controls.Add(_svgDimensions);
        
        base.OnInit(e);
    }
    
    protected override void Render(HtmlTextWriter writer)
    {
        writer.RenderBeginTag(HtmlTextWriterTag.Div);

        base.Render(writer);

        _svgData.RenderControl(writer);
        _svgDimensions.RenderControl(writer);

        writer.RenderEndTag();
    }
}

and

public class ExportableRadRadialGauge : RadRadialGauge, INamingContainer
{
    private HiddenField _svgData = new HiddenField();
    private HiddenField _svgDimensions = new HiddenField();
    public ExportableRadRadialGauge()
    {
        _svgData.ID = "SVGData";
        _svgDimensions.ID = "SVGDimensions";
    }

    protected override void OnInit(EventArgs e)
    {
        Controls.Add(_svgData);
        Controls.Add(_svgDimensions);
        
        base.OnInit(e);
    }

    protected override void Render(HtmlTextWriter writer)
    {
        writer.RenderBeginTag(HtmlTextWriterTag.Div);

        base.Render(writer);

        _svgData.RenderControl(writer);
        _svgDimensions.RenderControl(writer);

        writer.RenderEndTag();
    }
}

With this code, we've been running the Telerik product version 2023.1.323.45.

Now, we've updated to Telerik product version 2025.1.416.462 and are experiencing the following inconsistencies:

1. Using the same code as before, the HiddenFields of class "ExportableRadHtmlChart" render twice:
   
   
   Whereas previously, they've only rendered once:
   

   

   Removing the custom "Render"-function of the class "ExportableRadHtmlChart" resolves this issue. (Having duplicates of those HiddenFields actually causes issues on repeated PostBacks, as two HiddenFields at a time have the same ClientID and thus their values get packed as a comma separated list before transmission to the server, which in turn yields issues when parsing the SVG, which in reality are multiple comma separated SVGs.
   
   The SVG values are truncated in this view, but the dimensions paint a pretty clear picture, as to what's happening here after 4 PostBacks.) Despite requiring to make this adjustment to our software, we're glad, we can discard that custom "Render"-function.
   
2. The "ExportableRadRadialGauge", on the other hand, still only renders the HiddenFields with the custom "Render"-function included. Can we expect a similar fix to the RadialGauge, s.t. we don't require to render the HiddenFields ourselves?

As I'm unsure of the "Theme name", I've put "ControlDefault". But I don't think that should matter too much. If it does, I'll try to find the correct value.

Kind regards,
Matthias

Hi,
I want to convert pptx files to PDF files.

Greetings
Micha

Hello,

Sometimes the context menu isn't positioned correctly when it pops up for the first time, or after you scroll the page or do a browser zoom. I've attached an example reported by our tester. I've checked your technical support and have found this:

https://feedback.telerik.com/aspnet-ajax/1374622-context-menus-mispositioned-after-page-scroll-when-contentareamode-div?_ga=2.47056743.1148387732.1712639084-795296971.1689564005&_gl=1*1fbejbs*_ga*Nzk1Mjk2OTcxLjE2ODk1NjQwMDU.*_ga_9JSNBCSF54*MTcxMjcwNTQxNS42NS4xLjE3MTI3MDY1NTUuNjAuMC4w*_gcl_au*MTk5NTg1MzE3OS4xNzEyMjAwMDcy

I've tried setting the render mode to Lightweight (originally set to Auto), but unfortunately no luck.

Is this something that is fixed in a later version of the editor, or do you have another fix/workaround?

Thank you in advance,

Gerald

While changing the value from RadCombox, meaning firing the SelectedIndexChanged, I am getting the below error.

Exception information: 
    Exception type: NullReferenceException 
    Exception message: Object reference not set to an instance of an object.
   at MDM.WebApplication.MyPendingActions.rgrid_ItemDataBound(Object sender, GridItemEventArgs e)
   at Telerik.Web.UI.RadGrid.OnItemDataBound(GridItemEventArgs e)
   at Telerik.Web.UI.GridCommandItem.SetupItem(Boolean dataBind, Object dataItem, GridColumn[] columns, ControlCollection rows)
   at Telerik.Web.UI.GridTableView.CreateTopCommandItem(Boolean useDataSource, GridColumn[] copiedColumnSet, GridTHead thead)
   at Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource)
   at Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource)
   at System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data)
   at System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data)
   at Telerik.Web.UI.GridTableView.PerformSelect()
   at Telerik.Web.UI.GridTableView.DataBind()
   at Telerik.Web.UI.RadGrid.AutoDataBind(GridRebindReason rebindReason)
   at Telerik.Web.UI.RadGrid.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint).

When trying on localhost SelectedIndexChanged of RadCombobox is getting fired and rgrid_NeedDataSource of RadGrid is not fired but when deployed on IIS, the scenario is opposite, SelectedIndexChanged is not fired but rgrid_NeedDataSource is getting fired.

Please help.

Also another thing, I wanted to understand how to use licenses.licx file in our project for telerik dll version 2013.1.314.45?

Hello,

Can you please add the control ID to this error so the affected control can be easily identified?  Right now, if you have a page with multiple combo boxes, it is extremely time consuming to locate the one with the issue.

Thank you,
DJ

--

[ArgumentOutOfRangeException: Selection out of range
Parameter name: value]
   Telerik.Web.UI.RadComboBox.PerformDataBinding(IEnumerable dataSource) +339
   Telerik.Web.UI.RadComboBox.OnDataBinding(EventArgs e) +1196
   Telerik.Web.UI.RadComboBox.PerformSelect() +34
   System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +134
   Telerik.Web.UI.RadComboBox.OnPreRender(EventArgs e) +57
   System.Web.UI.Control.PreRenderRecursiveInternal() +200
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +7474

It would be great if telerik can provide remove blank data rows on column which helps when dealing with huge data.

I am able to achieve the logic with below code.

  var grid = $find('<%= RadGrid_MeaInfo.ClientID %>');
            // MasterTable
            var masterTable = grid.get_masterTableView();
            // Items/Rows
            var dataItems = masterTable.get_dataItems();

            for (var i = 0; i < dataItems.length; i++) {
                var item = masterTable.getCellByColumnUniqueName(dataItems[i], "TriggerMan")
                debugger;
                if (item.innerHTML == "" || item.innerHTML == undefined) {
                    masterTable.hideItem(i);
                }
            }

Inconsistent behavior between Firefox and Chrome (other browser not tested) when cutting and pasting content within the editor.

We have more advanced cases but I tried to simplify the case here as much as I could.

This has been tested on you demo page at https://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx

I have tested using Firefox 88 and Chrome 90, both on Widows 10.

Reproduce:
Paste the following content in html-mode:

<p>Lorem ipsum dolor sit amet.</p>
<p>Ut enim ad minim veniam.</p>
<figure>
  <img src="../../images/attractions_LosGigantes.png" alt="Test">
  <figcaption>Image text</figcaption>
</figure>
<p>Excepteur sint occaecat cupidatat non proident.</p>

Switch to designmode.

Mark text, including the dot after veniam until before the first character in Excepteur

Cut

(First difference noted here)

Goto after Lorum Ipsum
Paste

(Second difference here)

First difference:

In Chrome you get:

<p>Lorem ipsum dolor sit amet.</p>
<p>Ut enim ad minim veniamExcepteur sint occaecat cupidatat non proident.</p>

In Firefox you get:

<p>Lorem ipsum dolor sit amet.</p>
<p>Ut enim ad minim veniam</p>
<p>Excepteur sint occaecat cupidatat non proident.</p>



Second difference:

Chrome:
<p>Lorem ipsum</p>
<p>.</p>
<p><figure><img src="https://demos.telerik.com/aspnet-ajax/editor/images/attractions_LosGigantes.png" alt="Test" /><figcaption>Image text</figcaption>
<div>&nbsp;</div>
</figure> dolor sit amet.</p>
<p>Ut enim ad minim veniamExcepteur sint occaecat cupidatat non proident.</p>

Firefox:
<p>Lorem ipsum.
<figure>
<img src="https://demos.telerik.com/aspnet-ajax/editor/images/attractions_LosGigantes.png" alt="Test" />
<figcaption>Image text</figcaption>
</figure>
dolor sit amet.</p>
<p>Ut enim ad minim veniam</p>
<p>Excepteur sint occaecat cupidatat non proident.</p>

Inconsistent behavior between Firefox and Chrome (other browser not tested) when drag and dropping content within the editor.

We have more advanced cases (when this breaks things like totally like cutting a block with image and caption into pieces in Chrome) but I tried to simplify the case here as much as I could.

This has been tested on you demo page at https://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx

I have tested using Firefox 88 and Chrome 90, both on Widows 10.

Steps to reproduce:
Switch to html-mode and add the following content:
<p>Lorem ipsum dolor sit amet.</p>
<p>Ut enim ad minim veniam.</p>
<p><img alt="" src="../../images/attractions_LosGigantes.png" /></p>

Switch back to wysiwyg mode

Drag the image and drop it in the middle of one of the text lines. I dropped it just after Lorum ipsum.

Result is very different in Firefox and Chrome

Firefox :
<p>Lorem ipsum </p>
<p><img alt="" src="https://demos.telerik.com/aspnet-ajax/editor/images/attractions_LosGigantes.png" /></p>
<p>dolor sit amet.</p>
<p>Ut enim ad minim veniam.</p>

Chrome:

<p>Lorem ipsum<img alt="" src="https://demos.telerik.com/aspnet-ajax/editor/images/attractions_LosGigantes.png" />&nbsp;dolor sit amet.</p>
<p>Ut enim ad minim veniam.</p>

We prefer the behavior in Firefox as it works when having mode advanced blocks than just an image. In Chrome the content is split into the new context and broken.

can we give two Focus Keys in KeyboardNavigationSettings ?

Current -->  <KeyboardNavigationSettings CommandKey="Alt" FocusKey="P" />

Two key strokes -->  <KeyboardNavigationSettings CommandKey="Alt" FocusKey="P + Y" />

I suggest update Device Screen Size for 

Telerik.Web.Device.Detection

using System;

namespace Telerik.Web.Device.Detection
{
    /// <summary>
    /// The device screen size based on the its dimensions in CSS pixels
    /// </summary>
    /// <remarks>
    ///The default ranges are:
    /// Small (to 600) CSS pixels
    /// Medium (601-1024) CSS pixels
    /// Large (1025 - 1366) CSS pixels
    /// ExtraLarge (over 1366) CSS pixels
    /// FullHD (over 1920) CSS pixels
    /// UHD4K = 5 // 3840
    /// UHD8K = 6 // 7680
    /// UHD10K = 7 // 10240
    /// </remarks>
    public enum DeviceScreenSize
    {
        Small = 0, // 0-600
        Medium = 1, // 601-1024
        Large = 2, // 1025 - 1366
        ExtraLarge = 3 // over 1366
        FullHD = 4 // 1920
        UHD4K = 5 // 3840
        UHD8K = 6 // 7680
        UHD10K = 7 // 10240

    }
}

Best,

Jeff

Hi Team,

I'm using Telerik.Web.UI Version 2020.2.617

I have integrated it and added a reference in my web application, asked me to upgrade the version of Assemblies "System.Web.Extension.dll" and "System.Core.dll" has to be upgraded to version 4.0, I did that too, Now I'm getting an error while I'm running or doing build "The type or namespace name 'Script' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)", Assembly it is referring to "System.Web.Script.Services", same error is coming for other attributes like "ScriptMethod, ScriptMethodAttribute"

For the Key word "this" it is throwing as below error

It is throwing an error for "System.Linq.Expressions"

Can anyone help me out on this how to resolve these bugs.

Regards

P L P Kumar

Twice this week, my Asp.net project would not compile because of a Telerik.Web.UI.dll link error. I run into this problem frequently, Telerik is very flakey. My last bug report was this compile problem with another Telerik file.

The solution to both compile problems is to clear the Properties/licenses.licx file. As least the second time, I knew right where to go without wasting time searching the web. A couple hours wasted on the first one on Monday.  I suppose I can expect to clear it Friday again when the compile fails on Telerik.

The Properties/licenses.licx is re-populating itself causing the compile to fail on this Telerik issue. Why have a licenses.licx if it always breaks the software? Your support says, clear the file - they know it causes endless problems.

There is no fix on my side for the this problem, Telerik must do something about the licenses.licx problem in an update.

I have these Telerik compiler warnings. The entire list is Telerik created, misleading and annoying.

We are looking for an option/rad control to have outlook or msg attachment. We have outlook emails with attachment within it. The attachment can vary from PDF, WORD, Outlook Message, Images, and more. The attachment also includes the signature or sensitive data. Currently, we are using a redemption library for an MSG attachment. We would like to know if Telerik offers a solution like redemption we can try. Redemption has a lot of issues. So we are looking for an alternative. Can you please provide an option for MSG attachment? 

https://identity.telerik.com/v2/oauth/signin?ReturnUrl=...
http://docs.identityserver.io/en/latest/

Hi,It would be really handy to have an best practice identity provider UX 

There are  many ways to skin a cat, but it would be really handy to have a UI component much like you find in the ~/Account folder created by MS that all worked.
That had all the recovery logon by email working, having built in 2FA working.

The quick win would be to tell us how to write a 'Telerik Scenario' and where we can share them in Marketplace.telerik.com ?

Thanks

doug 

Hi all,

I saw an error File/Dir not found 404 on your demo as attached picture.

How to fixed error File/Dir not found 404 by drag and drop folder(s) after I clicked open it?

Hi,

In mobile and tablet device is very difficult increase and decrease the size of columns of RadGrid, exist a specified method or a workaround for resize a grid ? 

Is possible increase border(left/right) of column for change it more easiest ?

The respons of my ticket in forum is that:

"Hi Giacomo,

I am afraid we currently do not have alternative ways for resizing the Grid column. However, I advise that you share your idea officially by creating a Feature Request in the Progress® Telerik® UI for ASP.NET AJAX Feedback Portal. There the request will have the potential to become popular. Items with higher priority will be processed earlier."

Best regards