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UI for WinForms Forum
4 answers
497 views
Hi, I need to get screen display position of a scatterseries datapoint say (3,5) in windows form. I am unable to find any conversion api similar to wpf which has methods to do that. How to get actual position on screen for a point. Any help will be greatly appreciated.
Nadya | Tech Support Engineer
Telerik team
 answered on 17 Jun 2020
6 answers
421 views
I'm currently using the Fluent theme, but I would like to remove the active border that draws on everything and disable the Ripple effect on buttons
I tryed to do that on Visual Style Builder, when I 'save as' I can see those options but I can't edit them, and I can't find those options anythere else
Tiago
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 answered on 17 Jun 2020
5 answers
229 views

Hello, the Radautocompletebox is a great control, but we face the following issue: I would like to know if/how if would be possible to show all possible choices, without any filter.

To be more clear, if my Radautocompletebox has 4 choices : AA, AAB, CC, EE, is there a way to display theses choices to the users (i.e. to open the selection menu) without any filter? Of course if I type A, I will see AA and AAB, but if a user has no idea of the posisble choices there is an issue.

I tried to use for example the keydown event, and to open the menu if the user types 'enter', but without sucess.

 

I know that what I am asking is not ready in line with the expected use of the component...

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 17 Jun 2020
11 answers
441 views

I'm getting an exception as follows

System.InvalidOperationException

"Collection was modified; enumeration operation may not execute."

 

   at System.Collections.ArrayList.ArrayListEnumeratorSimple.MoveNext()
   at Telerik.WinControls.UI.RadListViewElement.SynchronizeVisualItems()
   at Telerik.WinControls.UI.RadListView.OnGotFocus(EventArgs e)
   at System.Windows.Forms.Control.WmSetFocus(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at Telerik.WinControls.RadControl.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

This occurs when I change selection in my ListView after changing the datasource. So I'm reusing the ListView with different data.

I noticed a thread that I thought might provide a clue (below) but I tried the solution but it didn't work, in fact I got the same exception in that code instead. How can I change the whole datasource in my ListView without exception? Thanks.

https://www.telerik.com/forums/listview--detailview-item-removing

PS: I only noticed this when attempting to highlight text (see my previous thread) and then backing out that code. But perhaps I just didn't notice the issue before.

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 12 Jun 2020
6 answers
589 views
Hi everyone,

I used the below code to show the Dropdown Popup everytime user hits Tab to go to that control. However, now the pop up will disappear if user clicks the little button on the right side of the DropDown control (normal way to show popup), this issue only happens on the first time when the control gets focused. Do you know how to fix this?

Thank you.

Private Sub DropDown_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dpdBodyCondition.Enter
       Dim dpd As RadDropDownList = sender
       If dpd.IsPopupVisible = False Then
           dpd.Popup.Show(dpd)
       End If
   End Sub
Ras Ran
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Iron
 answered on 12 Jun 2020
1 answer
188 views
I was able to create a bar chart with one set of bars (series)  and bound it to a DataTable without any problem.  Now my boss wants me to create two series - how do I bind it to a data source?  Do I bind it to a DataSet or bind the DataTables to each series?
Nadya | Tech Support Engineer
Telerik team
 answered on 11 Jun 2020
2 answers
207 views

1.  Is there a way that I can set the top level folder they can access. So lets say I have a directory structure  C:\Files\ExplorerFile\Ticket\4\Testing/  I set the explorer to open at C:\Files\ExplorerFile\Ticket\4\  They can navigate down and create new folders but I do not want them to go up past \4.

 

2. The default is set to Move but you can hold ctrl or shift to make it a copy.  Is there a way to set it to default to copy, or turn off the move function?

3. Is there a way to set the control o if you double click a file that it will open rather then right click and open?

Nadya | Tech Support Engineer
Telerik team
 answered on 11 Jun 2020
3 answers
121 views

Hi,

Is it possible to import an Office XLSX file, whom is Passwordprotected?

Best regards
André

 

 

 

Tanya
Telerik team
 answered on 10 Jun 2020
1 answer
176 views

I am trying to export a grid with different row heights.

I have AutoSizeRows = true.

On the apps screen the grid looks great. :)

But when I export it I get an error:

rowHeight should be greater or equal than 0 and less or equal than 600.

 spreadExporter.CellFormatting += spreadExporter_CellFormatting;

I have a spreadExporter_CellFormatting function and had:

if (e.GridCellInfo.RowInfo.Height > 600)
            {
                e.GridCellInfo.RowInfo.Height = 600;
            };

But it didnt stop the error happening.

Question, how do I check for the Row height value and set it before/during the export?

 

Thanks

Deasun.

 

 

 

 

Nadya | Tech Support Engineer
Telerik team
 answered on 10 Jun 2020
4 answers
243 views
I'm struggling to find anything in the documentation about how to style the bars in a bar chart.

I'd like the bars to look as per the attachment, with a shadow to the bottom and to the right.

With series defined as a BarSeries, I tried this, but it had no effect on the appearance of the bars:

series.BorderBoxStyle = Telerik.WinControls.BorderBoxStyle.FourBorders
series.BorderBottomShadowColor = Color.Gray
series.BorderRightShadowColor = Color.Gray
series.BorderRightWidth = 20
series.BorderBottomWidth = 40

Please could you let me know how to achieve this?

Leigh
Stephan
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Iron
 answered on 10 Jun 2020
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