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troubleshooting Question

Asp.net Ajax ModalPopupExtender DynamicMethod Never been Called

Avatar of YesOrKnow
YesOrKnow asked on
AJAX
4 Comments1 Solution374 ViewsLast Modified:
Hi every expert,

My task is to add a ModalPopupExtender onto my asp.net page APage.aspx, and list a table of records with CheckBoxes and contents in the popup dialog. Users are able to select some interest rows, and after they click OK button, the selected data id values should be return back to its original page APage.aspx.

I have read the article from http://www.codeproject.com/KB/ajax/Dynamic_AJAX_Modal_Popup.aspx

Then I tried the following:

1. Register Ajax assembly in my APage.aspx:
 
<%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="ajaxToolkit" %>

2. Add a button "btnSelectRows", and a panel "pnlRows"
 
<asp:Button ID="btnSelectRows" Text="Select Rows" runat="server" onclick="btnSelectRows_Click" />

<asp:Panel ID="pnlRows" runat="server" style="display:block;width:auto;" BackColor="White">
    <div>
         <asp:Panel id="pnlHeader" runat="server">
             <p><h3><b>Please Choose the rows you would like to use:</b></h3></p>
         </asp:Panel>
    </div>
    <div>
         <table id="tblPopup">
              <thead class="popupheading">
                  <tr>
                      <th style="width: auto; background: #6E9ECA; font-size: 10pt; color: white"><b>Selected</b></th>
                      <th style="width: auto; background: #6E9ECA; font-size: 10pt; color: white"><b>Note Type</b></th>
                      <th style="width: auto; background: #6E9ECA; font-size: 10pt; color: white"><b>Common Note</b></th>
                  </tr>
              </thead>
              <tbody>
                  <asp:Label ID="lblCommonNotes" runat="server"></asp:Label>
                  <tr>
                    <td></td>
                    <td></td>
                    <td class="popupfooter">
                         <asp:Button ID="btnOK" runat="server" Text="OK" />
                         <asp:Button ID="btnCancel" runat="server" Text="Cancel" />
                    </td>
                  </tr>
              </tbody>
         </table>
    </div>
</asp:Panel>

3. Add ModalPopupExtender:
 
<ajaxToolkit:ModalPopupExtender ID="mpeSelectRows" runat="server"
        TargetControlID="btnOK"
        PopupControlID="pnlSelectRows"
        BackgroundCssClass="modal" 
        DynamicServicePath="../RowsService.asmx"
        DynamicServiceMethod="GetRows"
        DynamicControlID="lblRows"
        DropShadow="true" 
        OkControlID="btnOK" 
        CancelControlID="btnCancel" 
        PopupDragHandleControlID="pnlHeader" />

4. Add a web service methods:
 
[System.Web.Script.Services.ScriptService]
.....
    [WebMethod]
    public string GetRows(string contextKey)
    {
        StringBuilder _sb = new System.Text.StringBuilder();

        RowList rows = new RowList();
        rows.Load(contentKey);
        foreach(Row r in RowList)
        {
          _sb.Append("<tr>");
          _sb.Append("    <td align=\"right\">" + r.A + "</td>");
          _sb.Append("    <td align=\"center\">" + r.B + "</td>");
          _sb.Append("    <td align=\"center\">" + r.C + "</td>");
          _sb.Append("</tr>");
        }

        return _sb.ToString();
    }

5. In order to pass in the contextKey value, I added a click button event handler for the btnSelectRows called btnSelectRows_Click:
 
protected void btnSelectRows_Click(object sender, EventArgs e)
    {
        if (ViewState["Parent Record"] != null)
        {
            mpeSelectRows.DynamicContextKey = (RowType)ViewState["Parent Record"].Id.ToString();
            mpeSelectRows.Show();
        }
    }

After I run the project, I found the web method GetRows is never called, and I am not sure what's my problem.

Please help.
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Avatar of YesOrKnow
YesOrKnow

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Commented:
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