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Telerik UI for WinForms controls used to be automatically added to Visual Studio's Toolbox during the installation process when using .NET 2.0 (up to 4.8) Framework in your project. This means that the Toolbox population relies on the Telerik WinForms version available in the Global Assembly Cache.

With the introduction of .NET Core/.NET 5 and the WinForms designer, the Toolbox configuration doesn't rely on the GAC anymore and it is not necessary to have an installation of the Telerik UI for WinForms suite. The Toolbox version depends on the installed NuGet package:
https://docs.telerik.com/devtools/winforms/core/core-toolbox-version

There is a known issue that any UserControls/ custom controls don't show up in the toolbox for a VB  project with .NET6.  Even the RadControls are not loaded in the toolbox. 

This seems to be a known issue introduced in Visual Studio 2022 17.3 only for VB project with .NET6. Microsoft are currently working on the issue and I believe that an update will be introduced with the fix: https://developercommunity.visualstudio.com/t/Custom-and-User-Controls-not-shown-in-To/10118197 

 
Dess | Tech Support Engineer, Principal
Telerik team
 updated question on 22 Aug 2022
0 answers
322 views

Only users that have Telerik installation version 2021.1.122 are affected.

Symptoms:

Clients that have Telerik installation version 2021.1.122 can not build successfully .NET Core/.NET 5.0 projects. The following error occurs while compiling the project:

The problem is a missing NuGet fallback folder.

Solution:

You should create the missing ToolboxNuGetPackages folder in the installation folder of the controls, usually at C:\Program Files (x86)\Progress\ToolboxNuGetPackages.

Nadya
Top achievements
Rank 1
 asked on 28 Jan 2021
1 answer
1 view

I am Using pdfExporter from RadDataGrid View to generate pdf.

How to wrap text of cells/columns      in exported pdf.                using VB.NET not C-Sharp                                                                                                                                                                                                                                                                                                                                                                                                                                        

Dinko | Tech Support Engineer
Telerik team
 answered on 07 Dec 2022
1 answer
1 view

Hi

How to remove or edit "Creator Telerik PdfProcessing" text before exporting DGV to pdf from PDF Properties.

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 07 Dec 2022
1 answer
0 views

I use telerik UI for WinForms project(not WPF) How to prevent auto close of RadContextMenu when user clicks on item on it? Now, after mouse click on any item, it closes. In WinForms there is ContextMenuStrip.AutoClose property to prevent autoclosing. Is there analogue of the property on Telerik RadContextMenu?

Thanks

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 07 Dec 2022
2 answers
1 view

Hello,

I'd like to display cell value (string) this way

(2) text2

(1) text1

 

not this way

(2) text2 (1) text1

 

How to achieve this behaviour?

Thank you.

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 07 Dec 2022
1 answer
9 views
I drew an example in the picture.
The format of the data table read from db is shown on the left.
I want to show this on the grid and zoom in
Grouping does not show column information in the row that is being expanded/reduced, but I need information in all rows.
I want to express it like BOM.
I want to expand/reduce to a specific key flexibly according to the column of the table I'm reading, but I don't know what to do.
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 06 Dec 2022
1 answer
6 views

Hi,

I am trying to create a PDF Table but I  am missing one or more libraries that I should reference. The code fragment I am trying is as follows:

Table table = new Table(); TableRow firstRow = table.Rows.AddTableRow(); TableCell firstCell = firstRow.Cells.AddTableCell(); 

Block block = firstCell.Blocks.AddBlock(); 
block.InsertText("Testing"); 

Thanks

Maria
Telerik team
 answered on 05 Dec 2022
1 answer
6 views

I hava a model that contains IsSelected Property, and I want to bind the row IsSelected of gridview to that IsSelected, what should i do?

class MyClass
{
    public bool IsSelected { get; set; }
}

private BindingSource _bindingSource;
private List<MyClass> _myClassList;
private RadGridView _gridView;

private void DataBinding()
{
    _bindingSource = new BindingSource { DataSource = _myClassList };
    // how to bind _gridView.Rows.IsSelected to _myClassList.IsSelected?
    _gridView.DataSource = _bindingSource;
}

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 05 Dec 2022
1 answer
12 views

Hello,  I am adding a 15mb image to the background of a RadDiagramShape.  The problem I am running into is the RadDiagram eats up 1gb of memory every time I open the form.  Eventually if I don't call GC.Collect the Image.FromStream blows up due to a memory limit.  I have traced it back to the RadDiagram utilizing a ton of memory.  The question I have is what performance considerations should I be looking at with the control?  I included the steps I am taking to add in the image.  

Thanks in advance!
Brian

 

                uiMap.DiagramElement.IsBackgroundSurfaceVisible = false;
                uiMap.SelectionMode = Telerik.Windows.Diagrams.Core.SelectionMode.None;

                RadDiagramShape backgroundImage = new RadDiagramShape()
                {
                    Name = "Image"
                };


                backgroundImage.IsConnectorsManipulationEnabled = false;
                backgroundImage.IsRotationEnabled = false;
                backgroundImage.IsResizingEnabled = false;
                backgroundImage.IsDraggingEnabled = false;
                backgroundImage.CaptureOnMouseDown = false;
                backgroundImage.IsEnabled = false;
                backgroundImage.IsFocusable = false;
                backgroundImage.IsHitTestVisible = false;
                backgroundImage.ShouldHandleMouseInput = false;
                backgroundImage.Shape = new Telerik.WinControls.RoundRectShape(0);
                backgroundImage.DiagramShapeElement.Image = floorplan;
                backgroundImage.Width = floorplan.Width;
                backgroundImage.Height = floorplan.Height;
                backgroundImage.ShouldHandleMouseInput = false;
                backgroundImage.NotifyParentOnMouseInput = false;
                backgroundImage.CaptureOnMouseDown = false;

               uiMap.AddShape(backgroundImage);

                Telerik.Windows.Diagrams.Core.ToolService toolService = uiMap.ServiceLocator.GetService<Telerik.Windows.Diagrams.Core.IToolService>() as Telerik.Windows.Diagrams.Core.ToolService;

                if (toolService != null)
                    toolService.ToolList[0] = new CustomPanningTool();

                uiMap.ActiveTool = Telerik.Windows.Diagrams.Core.MouseTool.PanTool;

 

                                
Dinko | Tech Support Engineer
Telerik team
 answered on 01 Dec 2022
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