I have grid with four columns. On load, I'm getting the data from a single table to populate the columns in the grid. Imagine a data with a column for uniqueID, text, text, numbers and numbers. I'm loading just the last for as visible.

I want the user to have the ability to edit the first two columns. This data actually comes from another table. There may be five choices for the user to select.

I'm looking everywhere for en event and I cannot find where I can edit the data source for the combobox columns. I'm completely stumped as to how I can populate the drop down boxes with valid data for the user to select.

Hello

In a treeview drag drop operation I need to get a users validation before proceeding with the actual drop operation.

In the example DragDropTreeViewsVBNET provided in a previous post
I have added a messagebox at the beginning of the drop operation in order to decide if I proceed or not
However this "hangs" the application. I suspect that the drop operation operates in a different thread that
prevents me from opening a messagebox.
I have tried to find a way to achieve this but have failed.
Have you a suggestion ? (I understand this is not a Telerik issue but I would appreciate any suggestion)

Thanks in advance

Pierre-Jean

• Convert to Telerik WinForms Applications
• Configure Project
• Upgrade Wizard

I get the dialog with the available Components and Themes, but, when I click Finish, I receive an error that says:

Error executing custom action 
Telerik.WinControls.VSX.Actions.UpdateReferencesAction: Object reference not set to an instance of an object.

I do not receive this error if I remove all COM, Project, and external dll references from that project prior to launching the dialog.  Is this expected?  The Radcontrols work fine as long as I add the references manually or let VS do the work by dragging the control from the toolbox.  For the record, I'm a brand new user so I can't say if this worked with previous versions.

Thanks!

The properties set at design time are not saved.

version : 2019.2.618.40

I am having problems understanding how to use this control.   I have already created a form without it, but I can start all over, no problem.  I just find it confusing how to lay it out.    I have attached a screen shot of what I want in the layout control.  Perhaps a short video demonstrating on how to partially construct this layout.  

Dear all,  

Can we formated textboxcolumn in grid with this format ? "XXXX-XX.XX" without maskededitboxcolumn ? 

Thanks Before 

Just upgraded to R3 and running program I am having the following error:

SearchRowPosition Failed

Telerik.WinControls.UI.SystemRowPosition is not available in the target framework.  Using framework 4.7.2, which is the same I was using in the previous release. 

We have been slowly moving away from an antiquated system, "Unidata". We have just completed converting the entire ERP system to Winforms with Visual Basic (interface only. it still is pulling data from Unidata). Next year, we will begin converting from Unidata database to MS SQL. In the future, we will move to C#. I proposed to my team to NOT wait, but to use C# when we convert to MS SQL (at the very least all db calls should be in C#). 

We are using VS 2015, .Net 4.7.2, and Telerik WinForms 2019.1.117.40

Before we start the conversion, I would like to move to VS 2019, .Net 5, and the latest Telerik WinForms version 

Here is my question: 

Is there a recommended conversion tool when moving from Visual Basic to C# that works best for Telerik Winforms?

Hi,

In some rows of the grid I need the CHECKBOX to be visible and enabled. How do I do that?

I attach an image.

Best regards.