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5 answers
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Is it possible to set up a group of toggle buttons such that only one button can be checked at a time?
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 01 Aug 2017
2 answers
252 views

Hi,

I was having trouble putting together a proof of concept with your RadGridView. I have a sample solution .zip file but it won't let me attach it. How can I send that to you so you can easily see what I'm talking about? I am using BindingList but the grid does not auto-refresh the data. Basically, if you change the name of ESPN to ESPN2, I would like that to update everywhere ESPN is used without calling Refresh() on the GridViewTemplates. If you edit ESPN to ESPN2, then click the Refresh button and put a breakpoint, you can evaluate and see that the name has been changed everywhere in the underlying objects but the grid doesn't automatically update. I hope this is a simple fix. Thanks!

Ray
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Rank 1
 answered on 31 Jul 2017
0 answers
97 views

How can i validate Dialog For only show image files on open dialog window.

While Click on GridViewBrowseColumn button only image file extention is visible. 

Muhammad Naveed
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Rank 1
 asked on 31 Jul 2017
1 answer
178 views

Hi,

 

I'm using a RadGridView with ViewDefinitions and I'm getting an error when the Windows have the size of the text at 125%.

The error happen only at this line: Grid.ViewDefinition = MyViewInfo.ViewDefinition

 

Where my MyViewInfo is a local class:

    Private Class MyViewDefinitionInfo
        Public Columns As List(Of String)
        Public ViewDefinition As IGridViewDefinition
        Public RowHeight As Integer = 30
        Public HeaderHeight As Integer = 30
    End Class

All the Column and Grid format is done inside of a Class, so I pass the Grid and DataTable as parameter

During my tests, I came to conclusion that this error only happens when the Grid is on RadForm, so on a normal Windows Form the error doesn't happen.

 

 

Part of the error is bellow, the full details is attached.

System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.WinControls.UI.GridTableElement.DpiScaleChanged(SizeF scaleFactor)
   at Telerik.WinControls.RadElement.SetParent(RadElement parent)
   at Telerik.WinControls.RadElement.ChangeCollection(RadElement child, ItemsChangeOperation changeOperation)
   at Telerik.WinControls.RadElementCollection.OnInsertComplete(Int32 index, Object value)

(...)

Full error attached

Dimitar
Telerik team
 answered on 31 Jul 2017
1 answer
108 views

Hi,

I am using RadRadioButtonColumn as describe in http://www.telerik.com/support/kb/winforms/details/creating-a-radradiobuttoncellelement

but while adding new row in grid ,radio button is not  render and also focus is not comming on that cell/column.

radio button only visible after rowleave event.

 

Please guide further to resolve this.

 

Dimitar
Telerik team
 answered on 31 Jul 2017
11 answers
426 views

Hi,

 I need to change the tooltip TEXT showed in my RadChartView serie but I have no idea of how to do this.

 

Could anyone help?

 

Thank you.

Dimitar
Telerik team
 answered on 31 Jul 2017
10 answers
510 views
Hello,

I'm currently playing around with the SaveLayout LoadLayout Methods of RadGridView.
The basic Idea of these functions is quite interesting.
 
How are situations handled where the definition of the grid or datasource during LoadLayout is slightly different from the time the layout was saved?
What's the expected behaviour if number, header, relative position and/or data types of columns change, or if the grid itself gets resized?

I could not find comprehensive documentation about these functions.

Regards
Erwin

Dimitar
Telerik team
 answered on 31 Jul 2017
1 answer
221 views

I need a way for restart the index of rows of radgridview after ordering them.

In my case i order the rows by a column, but when i go set the currentrow of grid the line that is selected no is the i want. This happens because when the lines are ordered the index of rows no is equal the your posicions.

Can somebody help me please?

Dimitar
Telerik team
 answered on 31 Jul 2017
17 answers
1.2K+ views
Hi,

I need something similar to your Silverlight/WPF RadSlider but for WinForms..

Is it possible to have multiple sliders on your WinForms RadTrackBar or do I need to put a wrapper around your WPF Slider?

Thanks,
Brad
Dimitar
Telerik team
 answered on 31 Jul 2017
0 answers
137 views

I'm using GridView in Telerik 2017.2

CellFormatting event doesn't firing when my GridView is Updating:

myGrid.TableElement.Update(GridUINotifyAction.StateChanged);

when i'm changing my DataSource:

myGrid.DataSource = currentRaces;

but RowFormatting is firing on this events. What can i do? I need to change color of my cells!

 

Nickolay
Top achievements
Rank 1
 asked on 31 Jul 2017
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