ajaxでgridviewをリフレッシュするには？

Question

AJAX ModalPopupで値を選択した後、GridViewをリフレッシュしたい。しかし、リフレッシュは選択ボタンを再度クリックした後にのみ行われます。 OKをクリックした直後にリフレッシュする必要があります...何が間違っていますか？

はあなたのcategoriesを置き マルコ

<div id="container" runat="server" /> 
<input id="dummy" type="button" style="display:none" runat="server"/> 

<ajaxToolkit:ModalPopupExtender runat="server" 
        ID="mpeThePopup" 
        TargetControlID="dummy" 
        PopupControlID="pnlModalPopUpPanel" 
        DropShadow="true"/> 

<asp:Panel ID="pnlModalPopUpPanel" runat="server"> 
    <asp:UpdatePanel ID="updatePanel2" runat="server" UpdateMode="Always"> 
     <ContentTemplate> 
      <asp:ListBox ID="availableCategories" runat="server" DataTextField="CategoryName" DataValueField="CategoryID" SelectionMode="Multiple"/> 
      <asp:Button ID="moveRight" runat="server" Text=">" OnClick="moveRightClick" /> 
      <asp:Button ID="moveLeft" runat="server" Text="<" OnClick="moveLeftClick" /> 
      <asp:ListBox ID="selectedCategories" runat="server" DataTextField="CategoryName" DataValueField="CategoryID" SelectionMode="Multiple"/> 
      <asp:Button ID="okButton" runat="server" Text="OK" OnClick="okClick" /> 
      <asp:Button ID="cancelButton" runat="server" Text="Cancel" OnClick="cancelClick" /> 
     </ContentTemplate> 
     <Triggers> 
      <asp:AsyncPostBackTrigger ControlID="okButton" EventName="Click" /> 
     </Triggers> 
    </asp:UpdatePanel> 
</asp:Panel> 

using System; 
using System.Collections.Generic; 
using System.Data; 
using System.Data.Objects; 
using System.Linq; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 

namespace WebApplication2 
{ 
    public partial class Select : System.Web.UI.UserControl 
    { 
     private ObjectSet<Category> osCategories; 

     protected void Page_Load(object sender, EventArgs e) 
     { 
      if (!Page.IsPostBack) 
      { 
       NorthwindEntities northwindEntities = new NorthwindEntities(); 
       categories.DataSource = northwindEntities.Categories; 

       availableCategories.DataSource = northwindEntities.Categories; 

       DataBind(); 
      } 

      Button showModal = new Button(); 
      showModal.Text = "Select"; 
      showModal.Click += new EventHandler(showModal_Click); 
      container.Controls.Add(showModal); 
     } 

     void showModal_Click(object sender, EventArgs e) 
     { 
      mpeThePopup.Show(); 
     } 

     protected void moveRightClick(object sender, EventArgs e) 
     { 
      foreach(ListItem listItem in availableCategories.Items) 
      { 
       if(listItem.Selected) 
       { 
        selectedCategories.Items.Add(listItem); 
        //availableCategories.Items.Remove(listItem); 
       } 
      } 
     } 

     protected void moveLeftClick(object sender, EventArgs e) 
     { 
      foreach(ListItem listItem in selectedCategories.Items) 
      { 
       if(listItem.Selected) 
       { 
        availableCategories.Items.Add(listItem); 
        //selectedCategories.Items.Remove(listItem); 
       } 
      } 
     } 

     protected void okClick(object sender, EventArgs e) 
     { 
      categories.DataSource = null; 
      categories.DataBind(); 

      categories.DataSource = availableCategories.SelectedItem; 
      categories.DataBind(); 

      mpeThePopup.Hide(); 
     } 

     protected void cancelClick(object sender, EventArgs e) 
     { 
      mpeThePopup.Hide(); 
     } 
    } 
} 

Answer 1

挨拶します0 UpdatePanel内にあり、ClickAsyncPostBackTriggerがokButtonにあります。