How can create multi header gridview.

How can create multi header gridview.

Here is our code for creating multi Header  Gridview .

In this  article I am using a gridvew in .aspx .i am using gridview event OnRowCreated

For this.

.aspx part

<asp:GridView ID="GR" runat="server" AutoGenerateColumns="False" OnRowCreated="grvMergeHeader_RowCreated">

            <Columns>

                <asp:BoundField DataField="name" HeaderText="name" />

                <asp:BoundField DataField="age" HeaderText="age" />

                <asp:BoundField DataField="salary" HeaderText="salary" />

                <asp:BoundField DataField="country" HeaderText="country" />

                <asp:BoundField DataField="city" HeaderText="city" />

            </Columns>

        </asp:GridView>

.CS Part

//Bind gridview at page load.

protected void Page_Load(object sender, EventArgs e)

    {

        string qu = "select * from gridview";

        SqlDataAdapter ad = new SqlDataAdapter(qu,con);

        DataTable dt = new DataTable();

        ad.Fill(dt);

        GR.DataSource = dt;

        GR.DataBind();

    }

//Row_created for creating its headers.

    protected void grvMergeHeader_RowCreated(object sender, GridViewRowEventArgs e)

    {

        if (e.Row.RowType == DataControlRowType.Header)

        {

            GridView HeaderGrid = (GridView)sender;

            GridViewRow HeaderGridRow = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Insert);

            TableCell HeaderCell = new TableCell();

            HeaderCell.Text = "Header 1";

            HeaderCell.ColumnSpan = 2;

            HeaderGridRow.Cells.Add(HeaderCell);

            HeaderCell = new TableCell();

            HeaderCell.Text = "Header2";

            HeaderCell.ColumnSpan = 3;

            HeaderGridRow.Cells.Add(HeaderCell);

            GR.Controls[0].Controls.AddAt(0, HeaderGridRow);

        }

    }

The result will look like :