paging

[ravikiranreddydharmannagari]

System.Data.DuplicateNameException: A column named 'rating' already belongs to this DataTable. at System.Data.DataColumnCollection.RegisterName(String name, Object obj) my code iam getting above exception DataTable dt=new DataTable(); try { foreach(DataGridItem dg in DataGrid1.Items) { String Name = dg.Cells[0].Text; DataRow dr; DataColumn dc; dc=new DataColumn("rating"); dt.Columns.Add(dc); dr=dt.NewRow(); dr[0]=Name; dt.Rows.Add(dr); DataGrid2.DataSource=dt; DataGrid2.DataBind(); } } catch(Exception ex) { Response.Write(ex.ToString()); } finally { conn.Close(); }

[Guffa]

That is because you are trying to add more than one column with the same name. What is it that you are trying to do?

--- b { font-weight: normal; }

[sam L 0]

As Guffy said, a column named 'rating' is already part of your DataTable, and then in your code dc=new DataColumn("rating"); dt.Columns.Add(dc); You are adding the same column again to the data table, ofcourse it'll complain. Good luck sam