Add custom row to GridView

   1: public partial class _Default : System.Web.UI.Page

   2: {

   3:     static int pgSize;

   4:  

   5:     protected void Page_Load(object sender, EventArgs e)

   6:     {

   7:         if(!Page.IsPostBack)

   8:               pgSize = 0;

   9:     }

  10:  

  11:     protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  12:     {

  13:         if (e.Row.RowType == DataControlRowType.DataRow)

  14:         {

  15:             TableCell tCell = new TableCell();

  16:             // create image

  17:             Image img = new Image();

  18:             img.ImageUrl = "subheader.jpg";

  19:             // add the image to the cell

  20:             tCell.Controls.Add(img);

  21:            

  22:             GridView gView = (GridView)sender;

  23:             // set the colspan to occupy the other cells in the row

  24:             int colSpan = gView.Columns.Count;

  25:             tCell.Attributes["ColSpan"] = colSpan.ToString();

  26:  

  27:             GridViewRow gRow = new GridViewRow(-1, -1, DataControlRowType.DataRow, DataControlRowState.Normal);

  28:             // add the cells to the gridviewrow

  29:             gRow.Cells.Add(tCell);

  30:  

  31:             Table tbl = (Table)e.Row.Parent;

  32:  

  33:             // set the pagesize initially to the pagecount/2

  34:             // in our case it is 10/2 = 5. So the first image will

  35:             // displayed after the 5th row.

  36:             if(pgSize == 0)

  37:                 pgSize = GridView1.PageCount / 2;

  38:  

  39:             // This step is performed so that we can display the image only after every

  40:             // 5, 15, 25 ,35 rows and so on ...

  41:             // The logic is not perfect but will give you the idea

  42:             if (Convert.ToDouble(e.Row.DataItemIndex + 1) / Convert.ToDouble(pgSize) == 1.0)

  43:             {

  44:                 tbl.Controls.AddAt(gView.Controls[0].Controls.Count, gRow);

  45:                 // add 10 to the pgsize so that the image can be displayed

  46:                 // at rows 5, 15, 25 and so on..

  47:                 pgSize = pgSize + 10;

  48:             }

  49:         }

  50:     }

  51: }