How to add a new row in GridView
<asp:gridview ID="Gridview1" runat="server" ShowFooter="true" AutoGenerateColumns="false"> <Columns> <asp:BoundField DataField="RowNumber" HeaderText="Row Number" /> <asp:TemplateField HeaderText="Header 1"> <ItemTemplate> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Header 2"> <ItemTemplate> <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Header 3"> <ItemTemplate> <asp:DropDownList ID="DropDownList1" r