如何在ASP.NET GridView中驻留的ASP.NET LinkButton的单击事件时显示消息

我是一名新的ASP.NET Web Forms开发人员，正在尝试使用带有Repository Pattern的ObjectDataSource开发一个简单的应用程序。我现在正为两个与ASP.NET GridView控件中的ASP.NET LinkButton相关的问题而苦苦挣扎。这些问题与GridView中的Delete LinkButton的单击事件有关。

这是我的ASP.NET代码：

<asp:UpdatePanel ID="upView" runat="server" UpdateMode="Conditional">
                <ContentTemplate>
<asp:Label ID="lblMessage" runat="server" Text="" CssClass="lead text-info"></asp:Label>
                        <asp:GridView ID="gvProducts" runat="server" AutoGenerateColumns="false"
                            DataSourceID="odsProduct" DataKeyNames="Id"
                            CssClass="table table-bordered table-striped">
                            <Columns>
                                <asp:TemplateField ShowHeader="False">
                                    <ItemTemplate>
                                        <asp:LinkButton ID="lbtnEdit"
                                            runat="server"
                                            CssClass="btn btn-info btn-sm"
                                            CommandName="Edit"
                                            Text="Edit" />
                                    </ItemTemplate>
                                    <EditItemTemplate>
                                        <asp:LinkButton ID="lbtnUpdate"
                                            runat="server"
                                            CssClass="btn btn-success btn-sm"
                                            CommandName="Update"
                                            Text="Update" />
                                        <%--&nbsp;--%>
                                        <asp:LinkButton ID="lbtnCancel"
                                            runat="server"
                                            CssClass="btn btn-default btn-sm"
                                            CommandName="Cancel"
                                            Text="Cancel" />
                                    </EditItemTemplate>
                                </asp:TemplateField>
                                <asp:TemplateField>
                                    <ItemTemplate>
                                        <span onclick="return confirm('Are you certain you want to delete this 
                                                product?');">
                                            <asp:LinkButton ID="lbtnDelete" runat="server"
                                                CssClass="btn btn-danger btn-sm"
                                                CommandName="Delete">
                                            <span class="glyphicon glyphicon-trash"></span> Delete
                                            </asp:LinkButton>
                                        </span>
                                    </ItemTemplate>
                                </asp:TemplateField>
                                <asp:BoundField DataField="Id" HeaderText="Id" SortExpression="Id" ItemStyle-VerticalAlign="Top" />
                                <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" ItemStyle-VerticalAlign="Top" />
                                <asp:BoundField DataField="Description" HeaderText="Description" SortExpression="Description" ItemStyle-VerticalAlign="Top" />
                                <asp:BoundField DataField="UnitPrice" HeaderText="Unit Price" SortExpression="UnitPrice" />
                            </Columns>
                        </asp:GridView>
                        <asp:ObjectDataSource ID="odsProduct" runat="server"
                            TypeName="ThinkSafetyFirst_DatabaseFirst.BLL.ProductBL"
                            DataObjectTypeName="ThinkSafetyFirst_DatabaseFirst.Models.TTSF_Product"
                            SelectMethod="GetProducts"
                            DeleteMethod="DeleteProduct"
                            UpdateMethod="UpdateProduct">
                        </asp:ObjectDataSource>
                </ContentTemplate>
            </asp:UpdatePanel>

1. 我想在用户单击Delete按钮后显示Javascript Alert消息。代码如上所示，但当用户点击按钮时，消息不会显示，我不知道为什么。

2. delete函数运行良好，但我希望在GridView控件外部的ASP.NET Label控件上显示成功或失败的消息。

你能告诉我如何解决这两个问题吗

更新：

正如您在我的ASP.NET代码中看到的，我使用的是带有Repository模式的ObjectDataSource。下面是产品模型的业务逻辑的C#代码：

public void DeleteProduct(TTSF_Product product)
        {
            try
            {
                productRepository.DeleteProduct(product);
            }
            catch (Exception ex)
            {
                //Include catch blocks for specific exceptions first,
                //and handle or log the error as appropriate in each.
                //Include a generic catch block like this one last.
                throw ex;
            }
        }

那么如何才能在删除方法上显示消息请注意，我有一个ASP.NET Label控件位于GridView控件之外。

感谢您提前提供的帮助。

<asp:TemplateField>
  <ItemTemplate>
      <asp:LinkButton ID="lbtnDelete" runat="server" OnClientClick="return confirm('Are you sure you want to delete this Product?');"
          CssClass="btn btn-danger btn-sm" CommandName="Delete">
        <span class="glyphicon glyphicon-trash"></span>Delete</asp:LinkButton>
  </ItemTemplate>
</asp:TemplateField>

protected void GridView1_RowCommand(object sender,  GridViewCommandEventArgs e)
        {
            if (e.CommandName == "Delete")
            {
                if (success) { lblResult.Text = "Success"; }
                else { lblResult.Text = "Failure"; }
            }
        }

public void DeleteProduct(TTSF_Product product)
        {
            try
            {
                productRepository.DeleteProduct(product);
                LabelControlID.Text = "Success";
            }
            catch (Exception ex)
            {
                //Include catch blocks for specific exceptions first,
                //and handle or log the error as appropriate in each.
                //Include a generic catch block like this one last.
               LabelControlID.Text = "Failure"; 
               throw ex;
            }
        } 

        if (error)
        {
            throw new YourException(ErrorMessage);
        }

protected void YourOjbectDataSource_Selected(object sender, ObjectDataSourceStatusEventArgs e)
    {
        if (e.Exception != null)
        {
            if (e.Exception.InnerException is YourException)
            {
                e.ExceptionHandled = true;
                lblErrorMessage.Text = e.Exception.InnerException.Message;
            }
        }
    }