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RadGrid Context Menu Issue

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James
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James asked on 06 Nov 2011, 05:20 AM
Hi All,

I have a context menu targeting a RadGrid.  I've successfully figured-out some pretty complex stuff with the menu and the grid, but I am stuck on what seems like a very simple issue.  To make this easy to discuss, I've simplified my problem.

The bottom line is that I am having a difficulty capturing the "clicked item" in JS.  The procedure I am using is almost exactly as described in here:  http://www.telerik.com/help/aspnet-ajax/menu-onclientitemclicked.html

In short, my context menu is targeting my grid, no problem.  Also, my on click event is firing as well.  Here is a simplified version:

function OnContextMenu_Grid(sender, args) {
    var myMenuItem = args.get_item().get_value();
    alert(myMenuItem)
 
}

Here is my context menu config:

<telerik:RadContextMenu ID="FlowsContextMenu" Runat="server"
        onclientitemclicked="OnContextMenu_Grid">
        <Targets>
            <telerik:ContextMenuControlTarget ControlID="RadGrid1" />
        </Targets>
        <Items>
            <telerik:RadMenuItem runat="server" Text="EDIT This Item">
            </telerik:RadMenuItem>
            <telerik:RadMenuItem runat="server" IsSeparator="True" Text="Line">
            </telerik:RadMenuItem>
            <telerik:RadMenuItem runat="server" Text="Add One">
                <Items>
                    <telerik:RadMenuItem runat="server" Text="Normal Flow">
                    </telerik:RadMenuItem>
                    <telerik:RadMenuItem runat="server" Text="Alternate Flow">
                    </telerik:RadMenuItem>
                    <telerik:RadMenuItem runat="server" Text="Business Rule">
                    </telerik:RadMenuItem>
                </Items>
            </telerik:RadMenuItem>
        </Items>
    </telerik:RadContextMenu>


However, when the event fires "myMenuItem" is null.  The alert window pops up, but still a null value.  I figure this is probably something simple, but I cannot spot it.  I would really appreciate some help.

The code for my entire page is attached below.  Thank you so much for any help!

Jim



<%@ Page Language="VB" AutoEventWireup="false" CodeBehind="ContextTest.aspx.vb" Inherits=".ContextTest" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager ID="RadScriptManager1" runat="server">
        <Scripts>
            <%--Needed for JavaScript IntelliSense in VS2010--%>
            <%--For VS2008 replace RadScriptManager with ScriptManager--%>
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />
        </Scripts>
    </telerik:RadScriptManager>
    <script type="text/javascript">
 
        function OnContextMenu_Grid(sender, args) {
            var myMenuItem = args.get_item().get_value();
            alert(myMenuItem)
 
        }
 
    </script>
    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
    </telerik:RadAjaxManager>
    <telerik:RadContextMenu ID="FlowsContextMenu" Runat="server"
        onclientitemclicked="OnContextMenu_Grid">
        <Targets>
            <telerik:ContextMenuControlTarget ControlID="RadGrid1" />
        </Targets>
        <Items>
            <telerik:RadMenuItem runat="server" Text="EDIT This Item">
            </telerik:RadMenuItem>
            <telerik:RadMenuItem runat="server" IsSeparator="True" Text="Line">
            </telerik:RadMenuItem>
            <telerik:RadMenuItem runat="server" Text="Add One">
                <Items>
                    <telerik:RadMenuItem runat="server" Text="Normal Flow">
                    </telerik:RadMenuItem>
                    <telerik:RadMenuItem runat="server" Text="Alternate Flow">
                    </telerik:RadMenuItem>
                    <telerik:RadMenuItem runat="server" Text="Business Rule">
                    </telerik:RadMenuItem>
                </Items>
            </telerik:RadMenuItem>
        </Items>
    </telerik:RadContextMenu>
    <br />
    <div>
 
        <br />
        <br />
        <br />
        <telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="False" CellSpacing="0" DataSourceID="SqlDataSource1" GridLines="None">
            <ClientSettings>
                <Selecting AllowRowSelect="True" />
                <ClientEvents />
            </ClientSettings>
            <MasterTableView DataSourceID="SqlDataSource1" ClientDataKeyNames="UseCaseID">
                <CommandItemSettings ExportToPdfText="Export to PDF" />
                <RowIndicatorColumn FilterControlAltText="Filter RowIndicator column">
                    <HeaderStyle Width="20px" />
                </RowIndicatorColumn>
                <ExpandCollapseColumn FilterControlAltText="Filter ExpandColumn column">
                    <HeaderStyle Width="20px" />
                </ExpandCollapseColumn>
                <Columns>
                    <telerik:GridBoundColumn DataField="UseCaseID" DataType="System.Int32"
                        FilterControlAltText="Filter UseCaseID column" HeaderText="UseCaseID"
                        SortExpression="UseCaseID" UniqueName="UseCaseID">
                    </telerik:GridBoundColumn>
                    <telerik:GridBoundColumn DataField="CaseName"
                        FilterControlAltText="Filter CaseName column" HeaderText="CaseName"
                        SortExpression="CaseName" UniqueName="CaseName">
                    </telerik:GridBoundColumn>
                    <telerik:GridBoundColumn DataField="CrossCase"
                        FilterControlAltText="Filter CrossCase column" SortExpression="CrossCase"
                        UniqueName="CrossCase" HeaderText="CrossCase">
                    </telerik:GridBoundColumn>
                    <telerik:GridBoundColumn DataField="Tallys"
                        FilterControlAltText="Filter Tallys column" SortExpression="Tallys"
                        UniqueName="Tallys" HeaderText="Tallys">
                    </telerik:GridBoundColumn>
                </Columns>
                <EditFormSettings>
                    <EditColumn FilterControlAltText="Filter EditCommandColumn column">
                    </EditColumn>
                </EditFormSettings>
            </MasterTableView>
            <EditItemStyle BorderStyle="None" />
            <HeaderStyle BorderStyle="None" />
            <FilterMenu EnableImageSprites="False">
            </FilterMenu>
            <HeaderContextMenu CssClass="GridContextMenu GridContextMenu_Default">
            </HeaderContextMenu>
        </telerik:RadGrid>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
            ConnectionString="<%$ ConnectionStrings:DatabaseUseCase1 %>"
            SelectCommand="SELECT UseCaseID, CaseName, CrossCase, Tallys FROM v_CaseTree WHERE (CaseParentID = 45) AND (AlternateFlowYN = 2) ORDER BY CaseSort">
        </asp:SqlDataSource>
        <br />
 
    </div>
    </form>
</body>
</html>





5 Answers, 1 is accepted

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Princy
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Rank 2
answered on 07 Nov 2011, 04:51 AM
Hello James,

You can set the Value property of RadMenuItem and then access the value. Here is the sample code.

ASPX:
<telerik:RadContextMenu ID="RadMenu1" runat="server" OnClientItemClicked="OnClientItemClicked"
        EnableRoundedCorners="true" EnableShadows="true">
  <Items>
   <telerik:RadMenuItem Text="Add" Value="A" />
   <telerik:RadMenuItem Text="Edit" Value="E"/>
   <telerik:RadMenuItem Text="Delete" Value="D" />
  </Items>
</telerik:RadContextMenu>

JS:
<script type="text/javascript">
 function OnClientItemClicked(sender, args)
 {
   var txt = args.get_item().get_text(); //to get the text
   var val = args.get_item().get_value(); // to get the value
    alert(val);
 }
</script>

Thanks,
Princy.
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James
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answered on 07 Nov 2011, 06:57 PM
Ooooooh, duh!  Man, I knew it was something simple.

Thank you so much Princy!

Jim

P.S.  Do you take outside work.  I am looking for a telerik experienced developer.  If so, please let me know how to get in touch with you.
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Princy
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Rank 2
answered on 08 Nov 2011, 12:39 PM
Hi Jim,

Thank you so much for the opportunity! We have great talent with Silverlight, Telerik RAD Controls, Blend etc. Please discuss your requirement with Raj using the information below:

Raj Varghese
Head - Business Development
Software Incubator, Inc
Tel: (516) 858 0188
Email: rajesh@softincubator.com
www.softincubator.com

Thanks,
Princy
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James
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answered on 08 Nov 2011, 06:16 PM
Thanks Princy!
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Raj
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answered on 10 Nov 2011, 12:13 PM
Hi Jim,

Please email me at rajesh@softincubator.com or call (516) 858-0188 with a bit more information on the requirement. Our team possess expertise with Silverlight, Telerik RAD Controls, Expression Blend etc; could lead to something great if we can work this out together!

Regards,
Raj
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