C# UserControl中未触发Gridview行事件

我正在使用的用户控件有一个非常奇怪的问题。我正在编写一些用于DotNetNuke模块的用户控件

基本上，我的页面上有一个UserControl，其中包含一些控件，然后有一个占位符，我在其中加载一个UserControl，其中放置了一个GridView

基本上这里是我的页面结构

<asp:Panel runat="server" ID="pnlServiceType" Visible="false">
   <uc:ServiceType runat="server" ID="ServiceType" />
</asp:Panel>

以及PopulateServicesGrid方法：

    private void PopulateServicesGrid(List<NOAService> services)
    {
        //Creates a LINQ grouping based on the Billing Codes
        //Allows a super easy creation of grids based on the grouped billing codes
        var query = services.Select(service => service.BillingCode).Distinct();
        foreach (string code in query)
        {
            var servicesByCode = services.Where(service => service.BillingCode == code).ToList();
            ServicesGrid servicesGrid = LoadControl("~/DesktopModules/LEL Modules/NOA/ServicesGrid.ascx") as ServicesGrid;
            Label lblServiceHeader = servicesGrid.FindControl("lblServiceHeader") as Label;
            GridView gvServices = servicesGrid.FindControl("gvServices") as GridView;

            phServices.Controls.Add(servicesGrid);
            servicesGrid.ID = code;
            lblServiceHeader.Text = servicesByCode[0].FormTypeName;
            gvServices.DataSource = servicesByCode;
            gvServices.DataBind();

            Session["GridCount"] = phServices.Controls.Count;

        }
    }

Init

方法加载UserControl的新实例并将它们添加到占位符中，但数据源为

null

。使用

EnableViewState=true

时，看起来数据仍然被绑定，但如果我处理

PreRender

，我可以看到我的

gvServices上的
数据源
为空

甚至可以在反复动态添加到占位符的GridView上编辑这样的行吗

修复了我在参考了这篇文章后发现了问题所在

这让我想，如果身份证换了怎么办？控件是嵌套的。所以我去把一块手表放在GridView的ID、ClientID和UniqueID上只是为了看看。当控件加载到我的

Init

处理程序中时，添加时会为其分配一个超级通用ID

private void PopulateServicesGrid(List<NOAService> services)
{
    //Creates a LINQ grouping based on the Billing Codes
    //Allows a super easy creation of grids based on the grouped billing codes
    var query = services.Select(service => service.BillingCode).Distinct();
    foreach (string code in query)
    {
        var servicesByCode = services.Where(service => service.BillingCode == code).ToList();
        ServicesGrid servicesGrid = LoadControl("~/DesktopModules/LEL Modules/NOA/ServicesGrid.ascx") as ServicesGrid;
        Label lblServiceHeader = servicesGrid.FindControl("lblServiceHeader") as Label;
        GridView gvServices = servicesGrid.FindControl("gvServices") as GridView;

        phServices.Controls.Add(servicesGrid);
        **servicesGrid.ID = code;**
        lblServiceHeader.Text = servicesByCode[0].FormTypeName;
        gvServices.DataSource = servicesByCode;
        gvServices.DataBind();

        Session["GridCount"] = phServices.Controls.Count;

    }
}

private void PopulateServicesGrid（列出服务）
{
//根据计费代码创建LINQ分组
//允许基于分组计费代码超级轻松地创建网格
var query=services.Select（service=>service.BillingCode.Distinct（）；
foreach（查询中的字符串代码）
{
var servicesByCode=services.Where（service=>service.BillingCode==code.ToList（）；
ServicesGrid ServicesGrid=LoadControl（“~/DesktopModules/LEL Modules/NOA/ServicesGrid.ascx”）作为ServicesGrid；
标签lblServiceHeader=servicesGrid.FindControl（“lblServiceHeader”）作为标签；
GridView gvServices=servicesGrid.FindControl（“gvServices”）作为GridView；
phServices.Controls.Add（servicesGrid）；
**servicesGrid.ID=代码**
lblServiceHeader.Text=servicesByCode[0]。FormTypeName；
gvServices.DataSource=servicesByCode；
gvServices.DataBind（）；
会话[“GridCount”]=phServices.Controls.Count；
}
}

我正在将ID设置为其他内容。因此，当我在网格上点击Edit row命令时，它再次在

Init

上重新加载控件，并且ID再次从我的自定义设置代码（T2020，从数据库中提取）更改回通用ID，它不知道如何触发事件

我希望这能帮助一些人，因为我已经花了至少12个小时来解决这个问题

        _serviceID = e.Value;

        //Clear the controls out of the placeholder
        phServices.Controls.Clear();

        //Reset the count of grids for the OnInit() method
        Session["GridCount"] = 0;

        if (e.Value != "NULL")
        {
            PopulateServicesGrid(_service.GetServicesByFormType(Convert.ToInt32(e.Value)));
        }
        else
        {
            PopulateServicesGrid(_service.GetServicesByClient(Convert.ToInt32(_client)));
        }

    private void PopulateServicesGrid(List<NOAService> services)
    {
        //Creates a LINQ grouping based on the Billing Codes
        //Allows a super easy creation of grids based on the grouped billing codes
        var query = services.Select(service => service.BillingCode).Distinct();
        foreach (string code in query)
        {
            var servicesByCode = services.Where(service => service.BillingCode == code).ToList();
            ServicesGrid servicesGrid = LoadControl("~/DesktopModules/LEL Modules/NOA/ServicesGrid.ascx") as ServicesGrid;
            Label lblServiceHeader = servicesGrid.FindControl("lblServiceHeader") as Label;
            GridView gvServices = servicesGrid.FindControl("gvServices") as GridView;

            phServices.Controls.Add(servicesGrid);
            servicesGrid.ID = code;
            lblServiceHeader.Text = servicesByCode[0].FormTypeName;
            gvServices.DataSource = servicesByCode;
            gvServices.DataBind();

            Session["GridCount"] = phServices.Controls.Count;

        }
    }

    void NOAServiceType_Init(object sender, EventArgs e)
    {
        for (int i = 0; i < Convert.ToInt32(Session["GridCount"]); i++)
        {
            ServicesGrid servicesGrid = LoadControl("~/DesktopModules/LEL Modules/NOA/ServicesGrid.ascx") as ServicesGrid;
            phServices.Controls.Add(servicesGrid);

        }
    }

    <asp:CommandField ShowEditButton="true" ItemStyle-HorizontalAlign="Right" EditText="Edit" UpdateText="Update" 
        EditImageUrl="~/images/LELModules/appbar.edit.rest.png" CancelImageUrl="~/images/LELModules/appbar.close.rest.png" UpdateImageUrl="~/images/LELModules/appbar.check.rest.png"
        ButtonType="Image" CausesValidation="false" />

ServiceType UserControl < `Init` fires here
   -Form elements
   -Placeholder which holds
      --UserControl with GridView

private void PopulateServicesGrid(List<NOAService> services)
{
    //Creates a LINQ grouping based on the Billing Codes
    //Allows a super easy creation of grids based on the grouped billing codes
    var query = services.Select(service => service.BillingCode).Distinct();
    foreach (string code in query)
    {
        var servicesByCode = services.Where(service => service.BillingCode == code).ToList();
        ServicesGrid servicesGrid = LoadControl("~/DesktopModules/LEL Modules/NOA/ServicesGrid.ascx") as ServicesGrid;
        Label lblServiceHeader = servicesGrid.FindControl("lblServiceHeader") as Label;
        GridView gvServices = servicesGrid.FindControl("gvServices") as GridView;

        phServices.Controls.Add(servicesGrid);
        **servicesGrid.ID = code;**
        lblServiceHeader.Text = servicesByCode[0].FormTypeName;
        gvServices.DataSource = servicesByCode;
        gvServices.DataBind();

        Session["GridCount"] = phServices.Controls.Count;

    }
}