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Change header of GridViewColumnGroup

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Pallavi
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Pallavi asked on 05 Feb 2014, 12:22 PM
Hi,

I wanted to change header of GridViewColumnGroup in runtime, the values are assigned but not reflected in UI.
How is that possible? how should i change the header of groups?
here is my current code to change it.

  grdTimeRecording.ColumnGroups[1].Header = string.Format("{0:ddd, d MMM}", _firstDate);
            grdTimeRecording.ColumnGroups[2].Header = string.Format("{0:ddd, d MMM}", _firstDate.AddDays(1));
            grdTimeRecording.ColumnGroups[3].Header = string.Format("{0:ddd, d MMM}", _firstDate.AddDays(2));
            grdTimeRecording.ColumnGroups[4].Header = string.Format("{0:ddd, d MMM}", _firstDate.AddDays(3));
            grdTimeRecording.ColumnGroups[5].Header = string.Format("{0:ddd, d MMM}", _firstDate.AddDays(4));
            grdTimeRecording.ColumnGroups[6].Header = string.Format("{0:ddd, d MMM}", _firstDate.AddDays(5));
            grdTimeRecording.ColumnGroups[7].Header = string.Format("{0:ddd, d MMM}", _firstDate.AddDays(6));

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Hristo
Telerik team
answered on 07 Feb 2014, 12:18 PM
Hi Pallavi,

There is a simple workaround for this issue. Basically, you would have to add and remove a new columngroup to the gridview, in order to notify the GridView that it's contents have changed. You can use this snippet as an example:
....
this.radGridView.ColumnGroups[2].Header = string.Format("{0:ddd}", new DateTime(1, 1, 1));
 
var columnGroup = new GridViewColumnGroup();
this.radGridView.ColumnGroups.Add(columnGroup);
this.radGridView.ColumnGroups.Remove(columnGroup);
....

Regards,
Hristo
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Pallavi
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Hristo
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