How to add the column width dynamically for gridview in asp.net

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ASP.NET4

Hi friends , I have a requirement on gridview, i have a datatable for that i was assigning the column names manually and also adding the data to datatable. After that i am set the datatable vertically and bind to the gridview.

var tbl = dt;


          var swappedTable = new DataTable();
          if (tbl.Rows.Count > 0)
          {
              swappedTable.Columns.Add("Name");

              for (int i = 0; i <= tbl.Rows.Count-1; i++)
              {


                  DataRow dx = tbl.Rows[i];


                  var x = dx.ItemArray;

                 // swappedTable.Columns.Add("Value"+i.ToString());



                  swappedTable.Columns.Add(x[3].ToString());



              }
              for (int col = 0; col < tbl.Columns.Count; col++)
              {
                  var r = swappedTable.NewRow();
                  r[0] = tbl.Columns[col].ToString();
                  for (int j = 1; j <= tbl.Rows.Count; j++)
                      r[j] = tbl.Rows[j - 1][col];


                  swappedTable.Rows.Add(r);
              }
              //dataGridView1.DataSource = swappedTable;

              gvwHDMonitor.DataSource = swappedTable;
              gvwHDMonitor.DataBind();

Example :


Name ...................... IICSS21

Operating System ............. Microsoft Windows 7 Professional
Version .............. 6.1.7601
Manufacturer ............. Microsoft Corporation
Computer Name ............. IICSS21
Windows Directory ............. C:\Windows
Serial Number ............. 00371-OEM-9203635-37779
ComputerManufacturer Name ............. Dell Inc.
Computer Model ............. OptiPlex 990
System Type ............. x64-based PC


here : Operationg system, Version like these are the columns
Microsoft Windows 7 Professional,6.1.760l these are the first row in datatable and same time other records also added dynamically to datatable as columns.



Here dynamically added the columns to datatable.
Problem is i want to increase the column width for dynamically added columns.
How can do this problem.

Please any one help me.