pass value to datagridview

Hi,

In .aspx page :
<asp:textbox id="txtName" runat="server" xmlns:asp="#unknown"></asp:textbox>
<asp:button id="btnAddToGrid" runat="server" onclick="btnAddToGrid_Click" xmlns:asp="#unknown"></asp:button>
<asp:gridview id="gvTest" runat="server" autogeneratecolumn="false" xmlns:asp="#unknown">
       <asp:templatefield>
            <itemtemplate>
              <asp:lable id="lblName" runat="server" text="&lt;%#Eval("Name")%&gt;"></asp:lable>
</itemtemplate>
</asp:templatefield>
</asp:gridview>


In C# page :

private void On button click()
{
    DataTable dtTest=new DataTable();
    dtTest.Columns.Add("Name");
    dtTest.Rows.Add(txtName.Text.Trim());
    dtTest.AcceptChanges();
    gvTest.DataSource=dtTest;
    gvTest.DataBind();
}