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colspan gridview rows

I have add开发者_Go百科ed rows into gridview. There are 20 columns in gridview. How can i do a colspan-like feature in gridview which could show me 2-3 rows under 2-3 columns and remaining as a colspan.

Basically i wish to implement colspan in gridview on the rows of the gridview.

hence my present gv is like ;

Col 1 Col 2 Col 3 Col 4 ...... Col 20

Cell1 Cell2 Cell3 Cell 4 ...... Cell 20 (For Rows # 1)

I wish to have something like

Col 1 Col 2 Col 3 Col 4 ...... Col 20

    Cell1      Cell2    ...... Cell 20   (For Rows # 1)

Let me know for any query.

Thanks


You need to handle the OnRowCreated event of the GridView as follows:

 protected void grid_RowCreated(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.Header)
    {
        e.Row.Cells[2].ColumnSpan = 2;
        //now make up for the colspan from cell2
        e.Row.Cells.RemoveAt(4);
    }
}

Your markup should be something like this:

<asp:GridView runat="server" ID="grid" OnRowCreated="grid_RowCreated" >

On the above example, I populated the grid with this:

DataTable dt = new DataTable();
        for (int i = 0; i < 5; i++)
        {
            dt.Columns.Add("Col " + i);
        }
        for (int i = 0; i < 10; i++)
        {
            DataRow r = dt.NewRow();
            r.ItemArray=new object[]{"row "+i,"row "+i,"row "+i,"row "+i,"row "+i};
            dt.Rows.Add(r);
        }

        grid.DataSource = dt;
        grid.DataBind();

And it produces this:

colspan gridview rows

I just realized that you wanted to have the ROWS (not necessarily the header) to have certain colspan, in which case you can do:

 protected void grid_RowCreated(object sender, GridViewRowEventArgs e)
{
   if (e.Row.RowType == DataControlRowType.DataRow)
    {
        e.Row.Cells[2].ColumnSpan = 2;
        //now make up for the colspan from cell2
        e.Row.Cells.RemoveAt(4);
    }
}

And it will produce:

colspan gridview rows


BoundField and TemplateField tags has the property ItemStyle-Width="22%" as you can see you can set it for each column with a percentage to be responsive

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