I have a context menu that I wish to show in response to a client-side click event. This works in IE9 but not in any earlier version, nor if in compatibility mode.

After a bit of digging, and tracing into the "show()" method it appears that the method is relying on the passed event object having a "target" property, which IE appears not to support (at least prior to IE9).  Instead, IE seems to use a property called "srcElement" instead.

So for the benegit of anyone else struggling with this, here's my patched code that now seems to work ok...

@ Page Language="C#" AutoEventWireup="true" CodeBehind="OpenItemsInventory.aspx.cs"

Inherits="Sterling.SNEF.Tax.Web.OpenItemsInventory" %>

<%

@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<

html xmlns="http://www.w3.org/1999/xhtml">

<

head runat="server">

<title>Open Items Inventory</title>

</

head>

<

telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">

<

script type="text/javascript">

var rad_val;

function onFutureInventory(sender, args) {

document.getElementById(

'<%= btnFutureInventory.ClientID %>').disabled = true;

GetRadioValue();

var windowURL = "FutureInventoryDialog.aspx?ViewByType=" + rad_val

var oWnd = $find("<%= dlgFutureInventory.ClientID%>");

oWnd.setUrl(windowURL);

oWnd.SetSize(500, 500);

oWnd.show();

oWnd.set_initialBehaviors(Telerik.Web.UI.WindowBehaviors.Close);

oWnd.set_behaviors(Telerik.Web.UI.WindowBehaviors.Close);

oWnd.SetModal(

true);

}

function GetRadioValue()

{

message =

"";

surplusMessage =

"";

if (document.getElementById('<%= rdoAssignee.ClientID %>').checked)

{

rad_val =

"Assignee";

}

else

"State";

}

}

function onFutureInventoryClose(sender, eventArgs) {

document.getElementById(

'<%= btnFutureInventory.ClientID %>').disabled = false;

}

script>

</

telerik:RadCodeBlock>

<

body>

<form id="form1" runat="server">

<telerik:RadScriptManager ID="OpenItemsInventoryScriptManager" runat="server">

</telerik:RadScriptManager>

<telerik:RadWindow ID="dlgFutureInventory" runat="server" Skin="Web20" EnableViewState="False"

KeepInScreenBounds="True" ReloadOnShow="True" ShowContentDuringLoad="False" VisibleStatusbar="False"

Behaviors="None" OnClientClose="onFutureInventoryClose" onclientOverlay="True">

</telerik:RadWindow>

<asp:Label ID="lblViewBy" runat="server" Font-Bold="True" Text="View By:"></asp:Label>

<asp:RadioButton ID="rdoAssignee" runat="server" Text="Assignee" GroupName="ViewByGroup"

OnCheckedChanged="ViewByGroup_CheckedChanged" Checked="true" AutoPostBack="true" />&nbsp;&nbsp;

<asp:RadioButton ID="rdoState" runat="server" Text="State" GroupName="ViewByGroup"

OnCheckedChanged="ViewByGroup_CheckedChanged" AutoPostBack="true" />

<br />

<br />

<table border="1">

<tr>

<td rowspan="2" align="center" style="width: 100px;">

<asp:Label ID="lblhdrAssignee" runat="server" Text="Assignee" Font-Bold="True"></asp:Label>

</td>

<td rowspan="2" align="center" style="width: 100px;">

<asp:Label ID="Label2" runat="server" Text="Jurisdictions" Font-Bold="True"></asp:Label>

</td>

<td colspan="2" align="center" style="width: 200px;">

<asp:Label ID="Label3" runat="server" Text="Open Items by Age" Font-Bold="True"></asp:Label>

</td>

<td rowspan="2" align="center" style="width: 100px;">

<asp:Label ID="Label4" runat="server" Text="Items Left to Pay" Font-Bold="True"></asp:Label>

</td>

<td rowspan="2" align="center" style="width: 100px;">

<asp:Label ID="Label5" runat="server" Text="%Complete" Font-Bold="True"></asp:Label>

</td>

</tr>

<tr>

<td align="center" style="width: 100px;">

<asp:Label ID="Label6" runat="server" Text="Prior" Font-Bold="True"></asp:Label>

</td>

<td align="center" style="width: 100px;">

<asp:Label ID="Label7" runat="server" Text="Current" Font-Bold="True"></asp:Label>

</td>

</tr>

<tr>

<td align="center" style="width: 100px;">

<asp:Label ID="Label1" runat="server" Text="Totals" Font-Bold="True"></asp:Label>

</td>

<td align="center" style="width: 100px;">

<asp:Label ID="lblhdrJurisdictions" runat="server"></asp:Label>

</td>

<td align="center" style="width: 100px;">

<asp:Label ID="lblhdrPrior" runat="server"></asp:Label>

</td>

<td align="center" style="width: 100px;">

<asp:Label ID="lblhdrCurrent" runat="server"></asp:Label>

</td>

<td align="center" style="width: 100px;">

<asp:Label ID="lblhdrItemsLeft" runat="server"></asp:Label>

</td>

<td align="center" style="width: 100px;">

<asp:Label ID="lblhdrPctComplete" runat="server"></asp:Label>

</td>

</tr>

</table>

<br />

<table>

<tr>

<td>

<asp:Label ID="lblCurrentandPrior" runat="server" Font-Bold="True" Font-Size="Large">Current and

Prior Inventory by Assignee

</asp:Label>

</td>

</tr>

<tr>

<td>

<telerik:RadGrid ID="grdCurrentandPrior" runat="server" AllowSorting="True" AutoGenerateColumns="False"

GridLines="None" Skin="Outlook" Style="margin-right: 0px" Width="673px" Height="260px" >

<ExportSettings FileName="OpenItemsCurrentInventory" IgnorePaging="True" OpenInNewWindow="True">

<Excel Format="ExcelML" />

</ExportSettings>

<MasterTableView>

<Columns>

<telerik:GridTemplateColumn HeaderText="Assignee" UniqueName="clmAssigneeState">

<HeaderStyle Font-Bold="True" Width="100px" HorizontalAlign="Center" />

<ItemTemplate>

<asp:LinkButton ID="dataInfo" runat="server" Text='<%# Eval("Assignee") %>' />

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn HeaderText="Jurisdictions" UniqueName="clmJurisdictions">

<HeaderStyle Font-Bold="True" Width="100px" HorizontalAlign="Center" />

<ItemTemplate>

<asp:LinkButton ID="jurisdiction" runat="server" Text='<%# Eval("JurisdictionCount") %>' />

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn UniqueName="TemplateColumn">

<HeaderTemplate>

<table id="Table1" cellspacing="1" cellpadding="1" width="200px" border="1">

<tr>

<td colspan="2" align="center">

<b>Open Items by Age</b>

</td>

</tr>

<tr>

<td align="center" width="50%">

<b>Prior</b>

</td>

<td align="center" width="50%">

<b>Current</b>

</td>

</tr>

</table>

</HeaderTemplate>

<ItemTemplate>

<table id="Table2" cellspacing="1" cellpadding="1" width="260px" border="1">

<tr>

<td width="50%">

<asp:LinkButton ID="LftToPay" runat="server" Text='<%# Eval("OpenItemsCountPrior") %>' />

</td>

<td width="50%">

<asp:LinkButton ID="LinkButton1" runat="server" Text='<%# Eval("OpenItemsCountELD") %>' />

</td>

</tr>

</table>

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn HeaderText="Items Left to Pay" UniqueName="clmItemsLefttoPay">

<HeaderStyle Font-Bold="True" Width="100px" HorizontalAlign="Center" />

<ItemTemplate>

<asp:LinkButton ID="LftToPay" runat="server" Text='<%# Eval("TotalRemainingItems") %>' />

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridBoundColumn HeaderText="% Complete" UniqueName="clmPctComplete" DataField="PercentComplete">

<HeaderStyle Font-Bold="True" Width="100px" HorizontalAlign="Center" />

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="AssigneeEmployeeKey" ReadOnly="True"

UniqueName="AssigneeEmployeeKey" Visible="False">

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

<HeaderStyle BorderStyle="Solid" />

<ClientSettings>

<Scrolling AllowScroll="True" UseStaticHeaders="True" />

</ClientSettings>

</telerik:RadGrid>

</td>

</tr>

</table>

<br />

<table>

<tr>

<td>

<asp:Button ID="btnFutureInventory" runat="server" Text="Future Inventory" SkinID="Web20" OnClientClick="onFutureInventory(); return false;"

Width="164px" UseSubmitBehavior="false" />

</td>

</tr>

</table>

</form>

</

body>

</

html>

myDataTable = new DataTable();

DataColumn myDataColumn;

myDataColumn =

new DataColumn();

myDataColumn.DataType =

Type.GetType("System.String");

myDataColumn.ColumnName =

"Assignee";

myDataColumn.DefaultValue =

"Dixon, Kristi";

myDataTable.Columns.Add(myDataColumn);

myDataColumn =

new DataColumn();

myDataColumn.DataType =

Type.GetType("System.Int32");

myDataColumn.ColumnName =

"JurisdictionCount";

myDataColumn.DefaultValue =

"15";

myDataTable.Columns.Add(myDataColumn);

myDataColumn =

new DataColumn();

myDataColumn.DataType =

Type.GetType("System.Int32");

myDataColumn.ColumnName =

"OpenItemsCountPrior";

myDataColumn.DefaultValue =

"2";

myDataTable.Columns.Add(myDataColumn);

myDataColumn =

new DataColumn();

myDataColumn.DataType =

Type.GetType("System.Int32");

myDataColumn.ColumnName =

"OpenItemsCountELD";

myDataColumn.DefaultValue =

"153";

myDataTable.Columns.Add(myDataColumn);

myDataColumn =

new DataColumn();

myDataColumn.DataType =

Type.GetType("System.Int32");

myDataColumn.ColumnName =

"TotalRemainingItems";

myDataColumn.DefaultValue =

"155";

myDataTable.Columns.Add(myDataColumn);

myDataColumn =

new DataColumn();

myDataColumn.DataType =

Type.GetType("System.Decimal");

myDataColumn.ColumnName =

"PercentComplete";

myDataColumn.DefaultValue =

"0.00";

myDataTable.Columns.Add(myDataColumn);

myDataColumn =

new DataColumn();

myDataColumn.DataType =

Type.GetType("System.Int32");

myDataColumn.ColumnName =

"AssigneeEmployeeKey";

myDataColumn.DefaultValue =

"1113";

myDataTable.Columns.Add(myDataColumn);

grdCurrentandPrior.DataSource = myDataTable.DefaultView;

grdCurrentandPrior.DataBind();