Gridview Data Update by textbox
<p>When am trying to update Datagridview with a textbox value it shows empty value in textbox
my code is this.wt's wrong in this. bnddata() has dataset assign to gridview</p>

<pre><code>protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;
        bnddata();

    }
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        GridViewRow row = (GridViewRow)GridView1.Rows[e.RowIndex];


        string emailid = GridView1.Rows[0].Cells[0].Text;


        TextBox txtadress = (TextBox)row.FindControl("txtadress");

        con.Open();

        string upd = "update empeasty set adress='" + txtadress.Text+ "' where emailid='"+emailid+"'";

        SqlCommand cmd = new SqlCommand(upd,con);


        int i=cmd.ExecuteNonQuery();

        if (i &gt; 0)
            Response.Write("Data updated");
        else
            Response.Write("Data not updated");

        con.Close();

        GridView1.EditIndex = -1;

        bnddata();
}
</code></pre>
