Hi, 
am working with an application in asp.net. In my application have some Telerik controls of version 2012.2.815.40. That application is working fine.

I Upgraded telerik controls to Telerik.web.ui.dll Version 2013.1.417.45 into my application.
When an application is build its getting errors like, 
"The type or namespace name 'Telerik' could not be found (are you missing a using directive or an assembly reference?)" 

Please tell me the solution as soon as possible

When i use this code in the page_load it opens the window as expected, when I use it in the itemCommand (and it runs in the debugger) it does not and I dont see any errors?

RadWindow fileWindow = new RadWindow();
        fileWindow.NavigateUrl = "http://www.google.com";
        fileWindow.VisibleOnPageLoad = true;
        fileWindow.ID = "fileWindow1";
        fileWindow.Width = 500;
        fileWindow.Height = 300;
        fileWindow.InitialBehaviors = WindowBehaviors.Maximize | WindowBehaviors.Close | WindowBehaviors.Resize;
        RadWindowManager2.Windows.Add(fileWindow);

hi,
I am using the following code in aspx.cs and aspx page to turn off/on the filetring of radgrid, but its working in reverse. When I click on FilterOn button, filters hide and when I click on FilterOff button, filters show up..it should not work like that

RadScriptManager is trying to load WebUIValidation from an address that does not exist.

I have two scenarios:

1 - When the RadScriptManager is configure like below [0] the script tag [1] is generated which try to load the script from an unexistent place.

[0] -

    <telerik:RadScriptManager ID="RadScriptManager1" runat="server" AsyncPostBackTimeout="500"
        ScriptPath="~" ScriptMode="Release">
        <Scripts>
              .... custom scripts ...
            <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>

[1] - 

<script src="System.Web/4.0.0.0/4.6.1637.0/WebUIValidation.js" type="text/javascript"></script>

2 - When the  RadScriptManager is configure like below [2] there is no error to load the script, however the error happens when a content is loaded via Ajax using the RadAjaxManagerProxy at this time it's triggered by an internal call of Telerik.Web.UI.WebResource.axd.

    <telerik:RadScriptManager ID="RadScriptManager1" runat="server" AsyncPostBackTimeout="500"
        EnablePageMethods="true" ScriptPath="~" ScriptMode="Release" >
        <Scripts>
            .... custom scripts ...
            <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" />
            <asp:ScriptReference Assembly="System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Path="~/js/WebUIValidation.js" Name="WebUIValidation.js" />
        </Scripts>
    </telerik:RadScriptManager>

Hi,

In my application I want to display simple grid with paging and filtering functionality. I am using custom paging for pagination of the grid.

My NeedDataSoure look like this

protected void rgList_NeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
        {

 Meeting360Entities db = new Meeting360Entities();
       
            var query = from c in db.Committees
                        select c;
            
            var Data = query.ToList();
            rgList.DataSource = Data.Skip(rgList.CurrentPageIndex * rgList.PageSize).Take(rgList.PageSize); // This line will selects records need to display on screen.  
            rgList.VirtualItemCount = Data.Count;

}

Like my above code in want select filtered data from data base. So how can in add WHERE clause into my linq query.

     <telerik:RadGrid ID="rgList" runat="server" AutoGenerateColumns="false" OnItemCommand="rgList_ItemCommand" GridLines="None"  
                                    ClientSettings-EnableRowHoverStyle="true" PagerStyle-Position="Bottom" AllowPaging="True" AllowCustomPaging ="true" PageSize="10" OnNeedDataSource="rgList_NeedDataSource"
                                    AllowFilteringByColumn="true">
                                    <MasterTableView DataKeyNames="CommitteeID" ClientDataKeyNames="CommitteeID">
                                        <Columns>
                                            <telerik:GridBoundColumn DataField="CommitteeID" HeaderText="CommitteeID" UniqueName="CommitteeID" Visible="false">
                                            </telerik:GridBoundColumn>
                                            <telerik:GridBoundColumn DataField="Name" HeaderText="Name" SortExpression="Name" UniqueName="Name" CurrentFilterFunction="Contains" AutoPostBackOnFilter="true" ShowFilterIcon="false">
                                            </telerik:GridBoundColumn>
                                            <telerik:GridTemplateColumn>
                                                <ItemTemplate>
                                                    <telerik:RadButton ID="btnEdit" runat="server" CommandArgument='<% #Eval("CommitteeID")%>' CommandName="ItemEdit" Text="Edit"></telerik:RadButton>
                                                </ItemTemplate>
                                            </telerik:GridTemplateColumn>
                                        </Columns>
                                    </MasterTableView>
                                    <ClientSettings>
                                        <Selecting AllowRowSelect="true"></Selecting>
                                    </ClientSettings>
                                </telerik:RadGrid>