以编程方式创建 Asp:PostBackTrigger

Question

我可以以编程方式创建 asp:PostBackTrigger 吗？因为它符合我的要求。附加信息。我使用syncfusion（ej1而不是ej2）网格。这里我只有div块（multigrid）。所有元素都是动态创建的。因为这是我们的要求。我们通过Example1.json创建数据表。

我的aspx代码：

<form id="form1" runat="server">
     <asp:ScriptManager ID="scritPANEID" runat="server"></asp:ScriptManager>
    <div>
          <asp:UpdatePanel runat="server" ID="multigridupdate" UpdateMode="Conditional">
        <ContentTemplate>
            <div runat="server" id="multigrid">
            </div>
        </ContentTemplate>
    </asp:UpdatePanel>
    </div>
</form>

我的代码是：

public static String root_path = AppDomain.CurrentDomain.BaseDirectory;
public static String rootUrl = "http://localhost:52733/";
public static DataTable dataTable = new DataTable();
public static string linkColName = "PARTY_ID";
Grid Data_Grids = new Grid();
protected void Page_Load(object sender, EventArgs e)
{
    
    string dt = File.ReadAllText(root_path + @"DataSet\Example1.json");
    DataTable datatab = UseNewtonsoftJson(dt);
    BindDataSource();
    
}
public static DataTable UseNewtonsoftJson(string sampleJson)
{

    if (string.IsNullOrWhiteSpace(sampleJson))
    {
        return dataTable;
    }
    dataTable = JsonConvert.DeserializeObject<DataTable>(sampleJson);
    return dataTable;
}
public void BindDataSource()
{
    Data_Grids.ID = "GridSample";
    Data_Grids.EditSettings.AllowEditing = true;
    Data_Grids.EditSettings.EditMode = Syncfusion.JavaScript.EditMode.Batch;
    Data_Grids.ToolbarSettings.ShowToolbar = true;
    Data_Grids.ToolbarSettings.ToolbarItems = new List<string> { "update", "cancel", "excelExport", "pdfExport" };
    Data_Grids.DataSource = dataTable;
    Data_Grids.ServerPdfExporting += FlatGrid_ServerPdfExporting;
    Data_Grids.ServerExcelExporting += FlatGrid_ServerExcelExporting;
    Data_Grids.DataBind();
    multigrid.Controls.Add(Data_Grids);
    multigridupdate.Update();
}

这里我想动态创建触发器。因为

Answer 1

您可以使用 RegisterAsyncPostBackControl 方法来实现此目的。

参考下面的代码示例，

 protected void Page_Load(object sender, EventArgs e)
  {
   ScriptManager scriptManager = ScriptManager.GetCurrent(this);
   if (scriptManager != null && Data_Grids != null)
   {
     //here register post back control id
     scriptManager.RegisterAsyncPostBackControl(Data_Grids);
   }
 BindSource();       
 }

参考下面的示例， https://www.syncfusion.com/downloads/support/directtrac/general/ze/webform1235591424

请参考以下链接， https://learn.microsoft.com/en-us/dotnet/api/system.web.ui.scriptmanager.registerasyncpostbackcontrol?view=netframework-4.8.1