C1DataGrid Collapse / Expand Groups in Code/Xaml

C1DataGrid Collapse / Expand Groups in Code/Xaml

Posted by: m.bleimuth on 19 January 2018, 1:23 am EST

• 

  m.bleimuth

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  Posted 19 January 2018, 1:23 am EST

  Hi,
  
  i would like to collapse/expand the groups in a c1datagrid. Right now the groups
  
  are automatically expaned when a user drops a column in the droparea.
  
  Is it possible to not automatically expand the groups?
  
  I would also like to be able to expand/collapse all groups within my code. I could not find any function so far which would give me that possibility.

  KR Manuel

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  sonu.singh

  

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  Posted 21 January 2018, 3:54 pm EST

  Hi,
  
  You can use CollapseAll/Collapse and ExpandAll/Expand methods for achieving your requirements in GroupChanged event of C1DataGrid.

          private void Datagrid_GroupChanged(object sender, C1.WPF.DataGrid.DataGridGroupChangedEventArgs e)
          {
              //Use Collapse for Collapse specific row
              // CollapseAll for all rows
              datagrid.Rows.CollapseAll();            
  
              //Use ExpandAll for expending all
              //Use below code for expanding specific row only
              datagrid.Rows.Expand(r => r.Index == 0);
          }
  

  Hope, this will help you.

  Thanks,
  
  Singh