to generate Grid view columns dynamically at run time

Hi Mahesh, this is how to generate Grid View at runtime.

foreach (DataColumn col in dt.Columns) 
{         
BoundField field = new BoundField();     
field.DataField = col.ColumnName;     
field.HeaderText = col.ColumnName;     
GridView1.Columns.Add(field);
}

Or here is here is how to set up a GridView with custom columns programatically.

private GridView SetUpGrid()     {         
GridView GView = new GridView();         
GView .ColumnHeaderToolTip = "MyToolTip";          
GridViewColumn gvc1 = new GridViewColumn();         
gvc1.DisplayMemberBinding = new Binding("Col1Name");         
gvc1.Header = "Column One";         
gvc1.Width = Double.NaN; // Auto-Size         
GView .Columns.Add(gvc1);        
GridViewColumn gvc2 = new GridViewColumn();         
gvc2.DisplayMemberBinding = new Binding("Col2Name");         
gvc2.Header = "Column Two";         
gvc2.Width = Double.NaN;         
GView .Columns.Add(gvc2);         
GridViewColumn gvc3 = new GridViewColumn();         
gvc3.DisplayMemberBinding = new Binding("Col3Name");         
gvc3.Header = "Column Three";         
gvc3.Width = Double.NaN;         
GView .Columns.Add(gvc3);         
GridViewColumn gvc4 = new GridViewColumn();         
gvc4.DisplayMemberBinding = new Binding("Col4Name");         
gvc4.Header = "Column Four";         
gvc4.Width = Double.NaN;         
GView .Columns.Add(gvc4);          
return GView;     
}