Question

I use 2 WebForms ans I want use one webform and from this I want open a Dialog with the second Webform.
I want open the Dialog if I click on a LinkButton from the ListView and it works fine but I need values for the second Webform and so I first open the Dialog. This Dialog is empty. After I close this Dialog the Values send to a Session.

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# Code:

…

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);

            }

        }

…

I want that i save my Values in a Session and than open the dialog

tarasov

Answer 1

Javascript Code is always called first before server side code..you have to think about alternate way…You can use the ItemCommand Property of List View to set the Session Value and then call the Javascript function from Codebehind to open the 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); 

    }     

}