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...

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.

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?

Hi,

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

Best regards
André

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.

We have used RadGridView in our Windows Application and initially we use 2012 year versions of respective telerik dll's.

With those dll's on our specific form where we have used RadGridView, if user enter a filter value  to filter desired type of rows from all bunch of rows and close the and  reopen the form user can see his last entered filter value has been retained so the rows user can see are also filtered on the basis of filter value.

But when tried to Upgrade to 2020 version of respective telerik dll's we observed above mentioned functionality does not work.

Attached is the respective image of grid. Kindly assist on this.