C1list headercheckbox ticked event

C1list headercheckbox ticked event

Posted by: softcomlimited on 4 December 2019, 11:50 pm EST

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  softcomlimited

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  Posted 4 December 2019, 11:50 pm EST

  Hello,
  
  Which event fires when a c1list headercheckbox is ticked / unticked ?
  
  Regards
  
  Brian

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  softcomlimited

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  Posted 4 December 2019, 11:51 pm EST

  Also is there a way to programmatically tick or untick headercheckbox ?
  
  Regards
  
  Brian

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  prabhat.sharma

  

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  Posted 5 December 2019, 5:23 am EST

  Hello,

  HeaderCheckBox is shown in the C1List when the following properties are set :

  C1List1.SelectionMode = C1.Win.C1List.SelectionModeEnum.CheckBox;
  C1List1.ShowHeaderCheckBox = true ;
  

  1 : These checkboxes are used to handle the selection of rows in the C1List so there is no direct event to handle the tick/untick of those checkboxes but by the help of the selection event you can handle it.

  Code snippet is given below :

  private void C1List1_SelectionChanged(object sender, EventArgs e)
  {
   bool temp = true;
   for (int i = 0; i < C1List1.VisibleRows; i++)
   {
    if (!C1List1.GetSelected(i))
      {
       temp = false;
       break;
      }
   }
   if (!temp)
     {
      Console.WriteLine("Not All Selected");
     }
   else
      {
       Console.WriteLine(" All Selected");
      }
  }
  
  

  2: If you want to tick or untick that checkbox programmatically then you need to select/deselect all rows by code :

  //Select All
  for (int i = 0; i < C1List1.VisibleRows; i++)
  {
     C1List1.SetSelected(i, true);
  }
  
  //Deselect All
  C1List1.ClearSelected();
  

  If you need any other help, please let us know.

  Regards,
  
  Prabhat Sharma.

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  softcomlimited

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  Posted 5 December 2019, 8:36 am EST

  Mr Sharma,
  
  I don’t see a SelectionChanged event but I do have SelectedValueChanged and SelChange events and neither of those fire when the headercheck is used.
  
  I have version 4.0.20151.38
  
  Thanks
  
  Brian

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  prabhat.sharma

  

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  Posted 6 December 2019, 3:18 am EST

  Hello Brian,

  You are correct that SelectionChanged event was not available in 2015V1 build as it was introduced in 2015V3 builds to handle the selection.

  I kindly request you to upgrade the builds so that you can access the SelectionChanged event when HeaderCheckBox is clicked.

  You can download the builds from the given link :
  
  https://www.grapecity.com/download/product-componentone

  Regards,
  
  Prabhat Sharma.