ASP LinkBut​​ton不起作用

Question

命令字段中的更新和删除按钮工作正常。插入不起作用....没有错误。有任何想法吗？谢谢!!

重申一下，更新和删除按钮会更新数据库。

以下是三个部分，代码，代码隐藏和sqldatasource。

        <asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" BackColor="#DEBA84" BorderColor="#DEBA84" BorderStyle="None" BorderWidth="1px" CellPadding="3" CellSpacing="2" DataKeyNames="ID" DataSourceID="SqlDataSource2" ShowFooter="True">
        <Columns>
            <asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />

            <asp:TemplateField HeaderText="ID" InsertVisible="False" SortExpression="ID">
                <EditItemTemplate>
                    <asp:Label ID="Label1" runat="server" Text='<%# Eval("ID") %>'></asp:Label>
                </EditItemTemplate>
                <ItemTemplate>
                    <asp:Label ID="Label4" runat="server" Text='<%# Bind("ID") %>'></asp:Label>
                </ItemTemplate>
                 <FooterTemplate>

                                <asp:LinkButton  ID="lbInsert" runat="server" OnClick="lbInsert_Click" CausesValidation="False">INSERT</asp:LinkButton>
                </FooterTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="ServerName" SortExpression="ServerName">
                <EditItemTemplate>
                    <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("ServerName") %>'></asp:TextBox>
                </EditItemTemplate>
                <ItemTemplate>
                    <asp:Label ID="Label1" runat="server" Text='<%# Bind("ServerName") %>'></asp:Label>
                </ItemTemplate>

                <FooterTemplate>
                    <asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
                </FooterTemplate>

            </asp:TemplateField>
            <asp:TemplateField HeaderText="ServiceName" SortExpression="ServiceName">
                <EditItemTemplate>
                    <asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("ServiceName") %>'></asp:TextBox>
                </EditItemTemplate>
                <ItemTemplate>
                    <asp:Label ID="Label2" runat="server" Text='<%# Bind("ServiceName") %>'></asp:Label>
                </ItemTemplate>
                <FooterTemplate>
                    <asp:TextBox ID="TextBox5" runat="server"></asp:TextBox>
                </FooterTemplate>

            </asp:TemplateField>
            <asp:TemplateField HeaderText="Version" SortExpression="Version">
                <EditItemTemplate>
                    <asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("Version") %>'></asp:TextBox>
                </EditItemTemplate>
                <ItemTemplate>
                    <asp:Label ID="Label3" runat="server" Text='<%# Bind("Version") %>'></asp:Label>
                </ItemTemplate>

                <FooterTemplate>
                    <asp:TextBox ID="TextBox6" runat="server"></asp:TextBox>
                </FooterTemplate>

            </asp:TemplateField>
        </Columns>
        <FooterStyle BackColor="#F7DFB5" ForeColor="#8C4510" />
        <HeaderStyle BackColor="#A55129" Font-Bold="True" ForeColor="White" />
        <PagerStyle ForeColor="#8C4510" HorizontalAlign="Center" />
        <RowStyle BackColor="#FFF7E7" ForeColor="#8C4510" />
        <SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="White" />
        <SortedAscendingCellStyle BackColor="#FFF1D4" />
        <SortedAscendingHeaderStyle BackColor="#B95C30" />
        <SortedDescendingCellStyle BackColor="#F1E5CE" />
        <SortedDescendingHeaderStyle BackColor="#93451F" />
    </asp:GridView>



   <asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ 
    ConnectionStrings:DBADASHBOARDDBConnectionString %>" DeleteCommand="DELETE 
    FROM [DBADASHTABLE] WHERE [ID] = @ID" InsertCommand="INSERT INTO 
    [DBADASHTABLE] ([ServerName], [ServiceName], [Version]) VALUES (@ServerName, 
    @ServiceName, @Version)" SelectCommand="SELECT * FROM [DBADASHTABLE]" 
    UpdateCommand="UPDATE [DBADASHTABLE] SET [ServerName] = @ServerName, 
    [ServiceName] = @ServiceName, [Version] = @Version WHERE [ID] = @ID">
        <DeleteParameters>
            <asp:Parameter Name="ID" Type="Int32" />
        </DeleteParameters>
        <InsertParameters>
            <asp:Parameter Name="ServerName" Type="String" />
            <asp:Parameter Name="ServiceName" Type="String" />
            <asp:Parameter Name="Version" Type="String" />
        </InsertParameters>
        <UpdateParameters>
            <asp:Parameter Name="ServerName" Type="String" />
            <asp:Parameter Name="ServiceName" Type="String" />
            <asp:Parameter Name="Version" Type="String" />
            <asp:Parameter Name="ID" Type="Int32" />
        </UpdateParameters>
    </asp:SqlDataSource>

    {
    public class Default : System.Web.UI.Page
    {

       protected void Page_Load(object sender, EventArgs e)

      {

    }
    protected void lbInsertClick(object sender, EventArgs e)
    {
        SqlDataSource2.insertparameters["ServerName"].DefaultValue = 
            ((TextBox)GridView2.footerrow.FindControl(TextBox4)).Text;
        SqlDataSource2.insertparameters["ServiceName"].DefaultValue =
            ((TextBox)GridView2.footerrow.FindControl(TextBox5)).Text;
        SqlDataSource2.insertparameters["Version"].DefaultValue =
            ((TextBox)GridView2.footerrow.FindControl(TextBox6)).Text;

        SqlDataSource2.Insert();
       }
       } 
    }

   }