是否可以在C＃方法中使用JavaScript函數

Question

我使用2 WebForms ans我想使用一個Web窗體並從此我想要打開第二個Web窗體的對話框。 我想打開對話框，如果我從ListView中點擊一個LinkBut​​ton，它工作正常，但我需要爲第二個Webform的值，所以我首先打開對話框。這個對話框是空的。關閉此對話框後，值將發送到會話。

ASPX：

... 
<script type="text/javascript"> 

     function OpenChild() { 

      var WinSettings = "center:yes;resizable:no;dialogHeight:550px" 
      var MyArgs = window.showModalDialog("Benutzer.aspx", MyArgs, WinSettings); 

     } 

    </script> 
... 
<asp:ListView runat="server" ID="myListView"> 

     <LayoutTemplate> 
      <table id="UserTable" runat="server" border="0" width="800" cellpadding="0" cellspacing="0"> 
       <tr style="background-color:#E5E5FE" class="TableClass"> 
        <th id="th1" runat="server"><asp:LinkButton ID="lnkBenutzer" runat="server" >id_Benutzer</asp:LinkButton></th> 
        <th id="th2" runat="server"><asp:LinkButton ID="lnkemail" runat="server" >id_Email</asp:LinkButton></th> 
        <th id="th3" runat="server"><asp:LinkButton ID="lnkVorname" runat="server" >id_Vorname</asp:LinkButton></th> 
        <th id="th4" runat="server"><asp:LinkButton ID="lnkNachname" runat="server" >id_Nachname</asp:LinkButton></th> 
        <th id="th5" runat="server"><asp:LinkButton ID="lnkTelefon" runat="server" >id_Telefon</asp:LinkButton></th> 
       </tr> 
       <tr runat="server" id="ItemPlaceholder"> 
       </tr> 
      </table> 
     </LayoutTemplate> 

     <ItemTemplate> 

      <tr class="TableClass">  
       <td align="left" ><asp:LinkButton CssClass="MyLink" OnCommand="Button1_Command" CommandName="Select" CommandArgument='<%# Container.DataItemIndex %>' ID="Label1" Text='<%# Eval("Benutzername") %>' runat="server" OnClientClick="OpenChild()" /></td> 
       <td align="left"><asp:LinkButton CssClass="MyLink" OnCommand="Button1_Command" CommandName="Select" CommandArgument='<%# Container.DataItemIndex %>' ID="Label2" Text='<%# Eval("eMail") %>' runat="server" OnClientClick="OpenChild()" /></td> 
       <td align="left"><asp:LinkButton CssClass="MyLink" OnCommand="Button1_Command" CommandName="Select" CommandArgument='<%# Container.DataItemIndex %>' ID="Label3" Text='<%# Eval("Vorname") %>' runat="server" OnClientClick="OpenChild()" /></td> 
       <td align="left"><asp:LinkButton CssClass="MyLink" OnCommand="Button1_Command" CommandName="Select" CommandArgument='<%# Container.DataItemIndex %>' ID="Label4" Text='<%# Eval("Nachname") %>' runat="server" OnClientClick="OpenChild()" /></td> 
       <td align="left"><asp:LinkButton CssClass="MyLink" OnCommand="Button1_Command" CommandName="Select" CommandArgument='<%# Container.DataItemIndex %>' ID="Label5" Text='<%# Eval("Telefonnummer") %>' runat="server" OnClientClick="OpenChild()" /></td> 

       <td align="left"><asp:Label ID="Label6" Text='<%# Eval("GUID") %>' runat="server" Visible="False" /></td> 

      </tr> 

     </ItemTemplate> 

     <AlternatingItemTemplate> 

      <tr class="TableClass"> 

       <td align="left" ><asp:LinkButton CssClass="MyLink" OnCommand="Button1_Command" CommandName="Select" CommandArgument='<%# Container.DataItemIndex %>' ID="Label1" Text='<%# Eval("Benutzername") %>' runat="server" OnClientClick="OpenChild()" /></td> 
       <td align="left"><asp:LinkButton CssClass="MyLink" OnCommand="Button1_Command" CommandName="Select" CommandArgument='<%# Container.DataItemIndex %>' ID="Label2" Text='<%# Eval("eMail") %>' runat="server" OnClientClick="OpenChild()" /></td> 
       <td align="left"><asp:LinkButton CssClass="MyLink" OnCommand="Button1_Command" CommandName="Select" CommandArgument='<%# Container.DataItemIndex %>' ID="Label3" Text='<%# Eval("Vorname") %>' runat="server" OnClientClick="OpenChild()" /></td> 
       <td align="left"><asp:LinkButton CssClass="MyLink" OnCommand="Button1_Command" CommandName="Select" CommandArgument='<%# Container.DataItemIndex %>' ID="Label4" Text='<%# Eval("Nachname") %>' runat="server" OnClientClick="OpenChild()" /></td> 
       <td align="left"><asp:LinkButton CssClass="MyLink" OnCommand="Button1_Command" CommandName="Select" CommandArgument='<%# Container.DataItemIndex %>' ID="Label5" Text='<%# Eval("Telefonnummer") %>' runat="server" OnClientClick="OpenChild()" /></td> 

       <td align="left"><asp:Label ID="Label6" Text='<%# Eval("GUID") %>' runat="server" Visible="False" /></td> 

      </tr> 

     </AlternatingItemTemplate> 

     </asp:ListView> 

C＃代碼：

...

protected void Button1_Command(object sender, CommandEventArgs e) 
     { 
      if (e.CommandName == "Select") 
      { 
       //Der Index der Zeile wird ermitellt 
       int index = Convert.ToInt32(e.CommandArgument); 

       //Der Inhalt (GUID[Unsichtbar]) wird aus der zeile mit dem Index herausgezogen und übergeben 
       Label lb = (Label)myListView.Items[index].FindControl("Label6"); 

       //Der GUID, Benutzer-Nachname und das Werk werden an eine Session übergeben 
       Session["UserID"] = lb.Text; 
       Session["SearchUser"] = txtBenutzer.Text; 
       Session["DropDownValue"] = dropWerk.SelectedValue; 


       //Es wird eine neue Webform geöffnet 
       Response.Redirect("Benutzer.aspx",true); 

      } 

     } 

...

我想，我救我的價值觀在會話和比開放對話框

塔拉索夫

Answer 1

JavaScript代碼總是先叫在服務器端代碼之前..你必須考慮替代方式...您可以使用ListView的ItemCommand屬性來設置Session值，然後調用Codebehind中的Javascript函數來打開Popup。

protected void ListView_OnItemCommand(object sender, ListViewCommandEventArgs e) 
    { 
    if (String.Equals(e.CommandName, "OpenPopup")) 
    { 

     ListViewDataItem dataItem = (ListViewDataItem)e.Item; 
     Session["UserID"]=((Label)dataItem.FindControl("Label6")).Text; 
     Session["SearchUser"] = txtBenutzer.Text;      
     Session["DropDownValue"] = dropWerk.SelectedValue; 
     Page.ClientScript.RegisterStartupScript(GetType(), "Key", "OpenPopupFunction();", true); 

    }  

} 

Answer 2

，如果我正確地理解你的問題，是的，你可以使用JavaScript的服務器端與ClientScriptManager.RegisterStartupScript方法在這裏是一個MSDN文章中詳細解釋它

http://msdn.microsoft.com/en-us/library/asz8zsxy.aspx