Datagrid column merging & Column Header Text Change in multi line


I would like to mearge two columns 0f datagrid. and also i want to display the columns title in multiple line by using c#.

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As far as i know, Merging isnt possible

DataColumn dc;
dc.ColumnName = "Column One"
dc.Caption = "Column\nOne";   //\n is new line character


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Hi, I'm not sure if I understand your question correctly. But I had an occasion where I had to merge two columns in the footer and I did as the following.
(1) In your ItemDataBound method,             
  if (e.Item.ItemType == ListItemType.Footer)
     e.Item.Cells[0].Text = "Merge Col1 and col2";
     e.Item.Cells[1].Visible = false;
(2) to display the columns title in multiple line
In your ItemDataBound method,             
  if (e.Item.ItemType == ListItemType.Header)
     e.Item.Cells[0].Text = "line1<br>line2";

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