Make column non-selectable in FlexGrid

Make column non-selectable in FlexGrid

Posted by: daniel.koffler on 28 April 2023, 8:11 pm EST

• 

  daniel.koffler

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  Posted 28 April 2023, 8:11 pm EST

  Hello,

  I am using “OnSelectionChanging” from “GridCellFactory” to make a certain column non-selectable.

  However if using the arrow keys to change the selected cell indeed the respective cell/column is not selectable but also I want the column right next to non-selectable column selected immediately. (the non-selectable column should just be skipped) To achieve this I have to press the right-arrow key once again.

  If the non-selectable column is the last column in the grid and one tries to select it with the keyboard, nothing should happen and the current cell/column should stay selected.

  How can I fulfil this requirement?
  
  Please find my example app enclosed. Column “3” is the non-selectable column.

  Thank you
  
  DanielComponentOneBlazorIssue.zip

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  manish.gupta

  

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  Posted 2 May 2023, 12:03 am EST

  Hi Daniel,
  
  Please update the OnSelectionChanging event as follows:

   protected override void OnSelectionChanging(GridControlSelectionEventArgs e)
          {
              if (e.CellRanges[0].Column == 6)
              {
                  e.Cancel = true;
                  if (e.CellRanges[0].Column != Grid.Columns.Count) 
                  {
                      var selection = Grid.Selection;
                      selection.Column = selection.Column + 2;
                      Grid.Selection = selection;
                      Grid.SetCursor(selection.Row, selection.Column);
                  }
              }
              
          }

  This code would work fine as per your request but if the last column is Non-selectable. The next row’s first cell can be selected by pressing the Tab key but the selection would be prevented for the Right arrow key.

  Hope it helps!

  Regards,
  
  Manish Gupta