Please help: Trouble with AJAX ModalPopupExtender

  • Thread starter Thread starter Bobby Edward
  • Start date Start date
B

Bobby Edward

I had a simple admin form for "Categories"...

Details View: To INSERT new Category
Grid View: To View, Edit and Delete all Categories

I decided to put the INSERT Details View inside of a ModalPopupExtender.

PROBLEM 1:
Dragging a ModalPopupExtender control to my webform gives me a gray box in
Design View:
Error Creating Control - ModalPopupExtender1
Unknown server tag 'ajaxToolkit:ModalPopupExtender'.

Any idea why? I registered it at the top of the page (by the way this page
is referencing a master page):
<%@ Page Title="" Language="VB" MasterPageFile="~/membersonly/member.master"
AutoEventWireup="false"
CodeFile="managefaqs.aspx.vb" Inherits="admin_managefaqs" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit"
TagPrefix="ajaxToolkit" %>

PROBLEM 2:
The pop up actually comes up. But, when I type in a new category and hit
"insert" on the detailsview I get this error:
"Databinding methods such as Eval(), XPath(), and Bind() can only be used in
the context of a databound control."

It's for this line:
<InsertItemTemplate>
<asp:DropDownList ID="DropDownList1" runat="server"
DataSourceID="odsCategories"
DataTextField="Category" DataValueField="CategoryId"
SelectedValue='<%# Bind("FaqCategoryId") %>'>
</asp:DropDownList>
</InsertItemTemplate>

Any idea why? It used to work before I tried putting it in a modal...

QUESTION 3
Any idea how I can refresh the datagrid on the main form after I insert a
new category with the ajax modal?

Thanks
 
I figured out the issues... I'll post it to help others...
PROBLEM 1:
Dragging a ModalPopupExtender control to my webform gives me a gray box in
Design View:
Error Creating Control - ModalPopupExtender1
Unknown server tag 'ajaxToolkit:ModalPopupExtender'.

Any idea why? I registered it at the top of the page (by the way this
page is referencing a master page):
Click to expand...

I took the Script Manager OUT OF the Master Page and put it in the page
itself. This fixed the problem.
PROBLEM 2:
The pop up actually comes up. But, when I type in a new category and hit
"insert" on the detailsview I get this error:
"Databinding methods such as Eval(), XPath(), and Bind() can only be used
in the context of a databound control."
Click to expand...

This was a problem that was not related to the modal control. DUH! :(
QUESTION 3
Any idea how I can refresh the datagrid on the main form after I insert a
new category with the ajax modal?
Click to expand...

It seems to refresh it automatically. This stuff is awesome!
 
you don't need to move the script manger out of the master. there is a script
manager proxy you can add in the content page if you need a reference to the
master pages.

-- bruce (sqlwork.com)
 
bruce barker said:
you don't need to move the script manger out of the master. there is a
script
manager proxy you can add in the content page if you need a reference to
the
master pages.

-- bruce (sqlwork.com)
Click to expand...

When I did that it fixed the problem. But it later came back. Any idea
why?

Dragging a ModalPopupExtender control to my webform gives me a gray box in
Design View:
Error Creating Control - ModalPopupExtender1
Unknown server tag 'ajaxToolkit:ModalPopupExtender'.
 
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