[Solved] Sys.ArgumentNullException using RadGrid and RadAjaxPanel with FireFox

[Eric]

Hi all, I get the following error only with Firefox (IE works fine) when I use RadAjaxPanel with the RadGrid inside and RadWindow to edit. It only works for the first time after that I get this error and nothing happens.

Error: [Exception... "'Sys.ArgumentNullException: Sys.ArgumentNullException: Value cannot be null.
Parameter name: handler' when calling method: [nsIDOMEventListener::handleEvent]"  nsresult: "0x8057001c (NS_ERROR_XPC_JS_THREW_JS_OBJECT)"  location: "<unknown>"  data: no]



Here is a sample of what I am doing. I am using a MasterPage so this code is in asp:Content...

<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">
        <script type="text/javascript">
            function Insert()
            {
                window.radopen("Form.aspx", null);
                return false;
            }
            function Update()
            {
                window.radopen("Form.aspx", null);
            }
            function RefreshGrid(arg)
            {
                $find("<%= RadAjaxPanel1.ClientID %>").ajaxRequest(arg);
            }
        </script>
    </telerik:RadCodeBlock>
    <telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" OnAjaxRequest="RadAjaxPanel1_AjaxRequest">
        <telerik:RadGrid ID="RadGrid1" EnableAJAX="false" runat="server"
        OnItemCommand="RadGrid1_ItemCommand">
            <MasterTableView>
                <CommandItemTemplate>
                    <asp:LinkButton ID="insertButton" OnClientClick="return Insert();" runat="server">Insert</asp:LinkButton>
                </CommandItemTemplate>
                <Columns>
                    <telerik:GridButtonColumn ButtonType="ImageButton" ImageUrl="Edit.gif" CommandName="InitUpdate" />
                    <telerik:GridBoundColumn DataField="Name" HeaderText="Name" />
                    <telerik:GridDropDownColumn DataSourceID="listDataSource" ListValueField="Id" ListTextField="Name" DataField="List" HeaderText="List" />
                </Columns>
            </MasterTableView>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>

    //code behind
    protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e)
    {
        switch (e.CommandName)
        {
            case "InitUpdate":
                ScriptManager.RegisterStartupScript(this, Page.GetType(), "callback", "Update();", true);
                break;
        }
    }

Any help would be greatly appreciated!

Thanks in advance!

Eric

[Pavlina]

Hello Eric,

I followed your scenario in order to replicate the issue but to no avail.
Please find attached a simple runnable application that demonstrates the needed approach. Give it a try and let me know if you have other questions or problems.

Additionally, for more information about Window editing, please review this live demo.

Regards,
Pavlina
the Telerik team

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[Eric]

Hi, thanks for the reply. I fixed the issue. The problem was in my css, I had this:
* html .clearfix {height: 1%;}
When i removed it, the problem went away.

Thx

Eric