Questions on UI for ASP.NET AJAX Forum

3 answers

244 views

Client Side Data Binding RadGrid & ItemTemplate Problem

How can i use ItemTemplate with Client-Side RadGrid data binding ?
i use a web method to bind data on client side..

here is my sample:
it hasn't worked out...

    
                    <telerik:RadGrid ID="IndividualHistoryGrid" AllowFilteringByColumn="true" 
        
                        runat="server" GridLines="None" AllowPaging="true" 
        
                        AllowSorting="true" OnPreRender="IndividualHistoryGrid_PreRender" 
        
                        PageSize="6"> 
        
                        <PagerStyle Mode="NextPrevAndNumeric" /> 
        
                        <MasterTableView TableLayout="Fixed" DataKeyNames="IndividualCode" ClientDataKeyNames="IndividualCode"> 
        
                            <ItemTemplate> 
        
                                <asp:Panel ID="ItemContainer" runat="server"> 
        
                                    <b>Name:</b> 
        
                                    <%# Eval("Name")%> 
        
                                </asp:Panel> 
        
                            </ItemTemplate> 
        
                        </MasterTableView> 
        
                        <GroupingSettings CaseSensitive="false" /> 
        
                        <ClientSettings> 
        
                            <DataBinding SelectMethod="GetDataAndCount" Location="IndividualGetHistoryMethod.aspx" 
        
                                SortParameterType="Linq"  FilterParameterType="Linq"> 
        
                            </DataBinding> 
        
                            <ClientEvents OnDataBinding="onDataBinding"></ClientEvents> 
        
                        </ClientSettings> 
        
                    </telerik:RadGrid>

i tried the sample on the below link:
http://demos.telerik.com/aspnet-ajax/grid/examples/programming/listview/defaultcs.aspx

Grid

answered on 22 Apr 2010

0 answers

82 views

Recurrence Multiple dates of a month

Can any one let me know how can we implement Recurrence on multiple dates of the month / multiple months of an year. The samples only allows to set one date / one month.

Some thing like the attached image

Regards
Nitesh

Scheduler

asked on 22 Apr 2010

1 answer

138 views

Getting XML exception when binding to radtabstrip

Hi,

When I am binding the xml file to the radtabstrip I am getting the "Data at the root level is invalid. Line 1, position 1. " I am pasting my xml file here,

<?xml version="1.0" encoding="utf-8" ?>
<MainMenu>
<Menu Text="Home" Url="#">
    <Menu Text="test1"></Menu>
    <Menu Text="test3"></Menu>
    <Menu Text="test2"></Menu>
</Menu>
<Menu Text="Policy Management" url="#">
</Menu>
<Menu Text="Claims Management" Url="#">
</Menu>
<Menu Text="Fast Quote" Url="#">
</Menu>
<Menu Text="Batch Processes" Url="#">
</Menu>
</MainMenu>

and in cs file in page load i am using this code

MainMenu.LoadXml("XMLFile.xml") and I used this also

MainMenu.LoadContentFile("XMLFile.xml");

plz help me soon.

TabStrip

answered on 22 Apr 2010

3 answers

959 views

/Telerik.Web.UI.WebResource.axd being blocked by dotNetProtect - any workaround

Hi all, I am creating an admin section for a client and they use dotNetProtect.
Apparently dotNetProtect is blocking the /Telerik.Web.UI.WebResource.

axd file from being accessed and according to their pathetic support, there is no fix!

I was wondering if I could just cut and paste the JS code from this file into a js page.
Without this file I get the Telerik is undefined. When I remove dotNetprotect, it works.

Is there any solution or workaround you all can think of?
John

General Discussions

answered on 22 Apr 2010

16 answers

259 views

Need help selecting first cell in current row

Hi,

How can I keep track of the first column in the selected row.

I remember in ASP.NET grid I use selectedRow.cells[1]

I want to pass the value of the first cell in the selected row. I have tried grid.selectedItems, grid.selectedvalue..etc non works

How can I do that in telerik grid ?

Thanks,
Musab

Grid

answered on 22 Apr 2010

2 answers

862 views

Error: Only one instance of a ScriptManager can be added to the page.

Hello friends,

I am developing a Usercontrol that will be mounted on the main page of a WSS 3.0 Site Collection using "Return of SmartPart v3.0". Done all the AJAX configurations on the server and tested it using the Sample Ajax User control included in the with the SmartPart installation.

I have also moved the Telerik:RadScriptManager & the Telerik:RadAjaxmanager to the WSS Master page:

Seen below:

default.master

    
            <WebPartPages:SPWebPartManager id="m" runat="Server" /> 
        
                  <!-- Added --> 
        
               <telerik:RadScriptManager ID="radScriptManager" runat="server"> 
        
                </telerik:RadScriptManager> 
        
                <telerik:RadAjaxManager ID="radAjaxManager" runat="server"> 
        
                    <AjaxSettings> 
        
                    </AjaxSettings> 
        
                </telerik:RadAjaxManager> 
        
              <!-- End of Added -->

Using RadAjaxManajerProxy from the user control. Here is the user control ascx:

    
            <%@ Control Language="C#" AutoEventWireup="true" CodeFile="MessageControl.ascx.cs" Inherits="Cubana.Web.UserControl.UserControls.MessageControl" %> 
        
            <%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik"  %> 
        
                <telerik:RadCodeBlock ID="radCodeBlock" runat="server"> 
        
                    <script type="text/javascript"> 
        
                        var messageId, currentMessage, currentRowIndex = null; 
        
                        function pageLoad(sender, args)  
        
                        { 
        
                        } 
        
                        function rowSelected(sender, args)  
        
                        { 
        
                            $find("<%= radTabStrip.ClientID %>").set_selectedIndex(0); 
        
                            var ajaxManager = $find('<%= radAjaxManagerProxy.ClientID %>'); 
        
                            var selectedIndex = args.get_itemIndexHierarchical(); 
        
                            ajaxManager.ajaxRequestWithTarget('<%= this.UniqueID %>', selectedIndex) 
        
                            DisableControls(); 
        
                        } 
        
                        function tabSelected(sender, args)  
        
                        { 
        
                            switch (args.get_tab().get_index()) { 
        
                                case 1: 
        
                                    { 
        
                                        EnableControls(); 
        
                                        break; 
        
                                    } 
        
                                default: 
        
                                    { 
        
                                        DisableControls();  
        
                                        break; 
        
                                    } 
        
                        } 
        
                        function EnableControls()  
        
                        { 
        
                            var txtUsernameState = $find("<%= txtUsername.ClientID %>"); 
        
                            txtUsernameState.enable(); 
        
                            var txtSubjectState = $find("<%= txtSubject.ClientID %>"); 
        
                            txtSubjectState.enable(); 
        
                            var txtReceivedState = $find("<%= txtReceived.ClientID %>"); 
        
                            txtReceivedState.disable(); 
        
                            var txtBodyState = $find("<%= txtBody.ClientID %>"); 
        
                            txtBodyState.enable(); 
        
                        } 
        
                        function DisableControls()  
        
                        { 
        
                            var txtUsernameState = $find("<%= txtUsername.ClientID %>"); 
        
                            txtUsernameState.disable(); 
        
                            var txtSubjectState = $find("<%= txtSubject.ClientID %>"); 
        
                            txtSubjectState.disable(); 
        
                            var txtReceivedState = $find("<%= txtReceived.ClientID %>"); 
        
                            txtReceivedState.disable(); 
        
                            var txtBodyState = $find("<%= txtBody.ClientID %>"); 
        
                            txtBodyState.disable(); 
        
                        } 
        
                        } 
        
                    </script> 
        
                </telerik:RadCodeBlock> 
        
                <style type="text/css"> 
        
                    .body 
        
                    { 
        
                        margin: 0px; 
        
                        padding: 0px; 
        
                        height: 100%; 
        
                        width: 100%; 
        
                        background-color: #FFFFE0; 
        
                    } 
        
                    .grid td 
        
                    { 
        
                        cursor: pointer; 
        
                    } 
        
                    .button 
        
                    { 
        
                        background-color: Silver; 
        
                        border: medium none; 
        
                        height: 28px; 
        
                        width: 90px; 
        
                    } 
        
                    .label 
        
                    { 
        
                        font-family:Verdana; 
        
                        font-size:10px; 
        
                    } 
        
                </style> 
        
            <form id="form1" runat="server">  
        
            <!--<telerik:RadScriptManager ID="radScriptManager" runat="server"> 
        
                </telerik:RadScriptManager>--> 
        
            <div style="height: 100%; padding: 10px"> 
        
                <%--<telerik:RadAjaxManager ID="radAjaxManager" runat="server"> 
        
                    <AjaxSettings> 
        
                        <telerik:AjaxSetting AjaxControlID="rgData"> 
        
                            <UpdatedControls> 
        
                                <telerik:AjaxUpdatedControl ControlID="rgData" /> 
        
                            </UpdatedControls> 
        
                        </telerik:AjaxSetting> 
        
                    </AjaxSettings> 
        
                </telerik:RadAjaxManager>--%> 
        
                <telerik:RadAjaxManagerProxy ID="radAjaxManagerProxy" runat="server"> 
        
                   </telerik:RadAjaxManagerProxy> 
        
                <telerik:RadWindowManager ID="radWindowManager" runat="server"> 
        
                        </telerik:RadWindowManager>  
        
                         <telerik:RadTabStrip ID="radTabMailBox" Style="margin-top: 10px;" 
        
                    SelectedIndex="0" AutoPostBack="True" runat="server"  
        
                    ontabclick="radTabMailBox_TabClick"> 
        
                    <Tabs> 
        
                        <telerik:RadTab Text="Inbox" Selected="True" /> 
        
                        <telerik:RadTab Text="Sent Items" Selected="False" /> 
        
                    </Tabs> 
        
                </telerik:RadTabStrip> 
        
                <telerik:RadGrid ID="radgridList" CssClass="grid" runat="server" GridLines="None" 
        
                    AutoGenerateColumns="False" OnSelectedIndexChanged="radgridList_SelectedIndexChanged"> 
        
                    <MasterTableView TableLayout="Fixed"> 
        
                        <Columns> 
        
                            <telerik:GridBoundColumn UniqueName="MessageId" DataField="MessageId" DataType="System.Guid" 
        
                                Visible="false" HeaderText="MessageId"> 
        
                            </telerik:GridBoundColumn> 
        
                            <telerik:GridBoundColumn UniqueName="UserName" DataField="UserName" Visible="true" 
        
                                HeaderText="Sender"> 
        
                            </telerik:GridBoundColumn> 
        
                            <telerik:GridBoundColumn UniqueName="Title" DataField="Title" Visible="true" HeaderText="Subject"> 
        
                            </telerik:GridBoundColumn> 
        
                            <telerik:GridBoundColumn UniqueName="DateTimeCreated" DataField="DateTimeCreated" 
        
                                Visible="true" HeaderText="Received"> 
        
                            </telerik:GridBoundColumn> 
        
                        </Columns> 
        
                    </MasterTableView> 
        
                    <ClientSettings> 
        
                        <Selecting AllowRowSelect="true" /> 
        
                        <ClientEvents OnRowSelected="rowSelected" /> 
        
                        <Scrolling AllowScroll="true" UseStaticHeaders="true" /> 
        
                    </ClientSettings> 
        
                </telerik:RadGrid> 
        
                <telerik:RadTabStrip ID="radTabStrip" OnClientTabSelected="tabSelected" Style="margin-top: 10px;" 
        
                    SelectedIndex="0" AutoPostBack="True" OnTabClick="RadTabStrip_TabClick" runat="server"> 
        
                    <Tabs> 
        
                        <telerik:RadTab Text="View Message" Selected="True" /> 
        
                        <telerik:RadTab Text="New Message" Selected="False" /> 
        
                    </Tabs> 
        
                </telerik:RadTabStrip> 
        
                <div style="border: 1px solid threedshadow;"> 
        
                    <table border="0" style="margin-top: 20px; width: 100%;"> 
        
                        <tr> 
        
                            <td> 
        
                            </td> 
        
                            <td> 
        
                                <asp:Button ID="btnDelete" CssClass="button" Style="float: right; margin-right: 10px; 
        
                                    color: black; font-weight: bold;" Text="Delete" runat="server" OnClick="btnDelete_Click" /> 
        
                                <asp:Button ID="btnSend" CssClass="button" Style="float: right; margin-right: 10px; 
        
                                    color: black; font-weight: bold;" Text="Send" runat="server" OnClick="btnSend_Click" /> 
        
                            </td> 
        
                        </tr> 
        
                        <tr> 
        
                            <td> 
        
                                <asp:Label ID="lblUserName" Text="Sender" CssClass="label" runat="server"></asp:Label> 
        
                            </td> 
        
                            <td> 
        
                                <telerik:RadComboBox ID="txtUsername" CssClass="label" runat="server" Width="500px" 
        
                                    AllowCustomText="True" /> 
        
                                &nbsp; &nbsp;<asp:Label ID="lblUsernameError" Text="Please choose a Recipient" CssClass="label" 
        
                                    runat="server" ForeColor="Red" Visible="False"></asp:Label> 
        
                            </td> 
        
                        </tr> 
        
                        <tr> 
        
                            <td> 
        
                                <asp:Label ID="lblSubject" Text="Subject" CssClass="label" runat="server"></asp:Label> 
        
                            </td> 
        
                            <td> 
        
                                <telerik:RadTextBox ID="txtSubject" runat="server" Width="500px" /> 
        
                            </td> 
        
                        </tr> 
        
                        <tr> 
        
                            <td> 
        
                                <asp:Label ID="lblReceived" Text="Received" CssClass="label" runat="server"></asp:Label> 
        
                            </td> 
        
                            <td> 
        
                                <telerik:RadTextBox ID="txtReceived" runat="server" Width="250px" /> 
        
                            </td> 
        
                        </tr> 
        
                        <tr> 
        
                            <td style="vertical-align: top;"> 
        
                                <asp:Label ID="lblBody" Text="Body" CssClass="label" runat="server"></asp:Label> 
        
                            </td> 
        
                            <td> 
        
                                <telerik:RadTextBox ID="txtBody" runat="server" Height="500px" Width="500px" Columns="2" 
        
                                    TextMode="MultiLine" /> 
        
                            </td> 
        
                        </tr> 
        
                    </table> 
        
                </div> 
        
            </div> 
        
            </form>

Even though there is only one ScriptManager present I am getting the following error when the main page loads from the Site Collection.

Only one instance of a ScriptManager can be added to the page.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: Only one instance of a ScriptManager can be added to the page.

Source Error:

An unhandled exception was generated during the execution of the
            current web request. Information regarding the origin and location of the
            exception can be identified using the exception stack trace below.

Stack Trace:

[InvalidOperationException: Only one instance of a ScriptManager can be added to the page.]
   System.Web.UI.ScriptManager.OnInit(EventArgs e) +384553
   Telerik.Web.UI.RadScriptManager.OnInit(EventArgs e) +68
   System.Web.UI.Control.InitRecursive(Control namingContainer) +333
   System.Web.UI.Control.InitRecursive(Control namingContainer) +210
   System.Web.UI.Control.InitRecursive(Control namingContainer) +210
   System.Web.UI.Control.AddedControl(Control control, Int32 index) +198
   System.Web.UI.ControlCollection.Add(Control child) +80
   SmartPart.SmartPart.CreateChildControls() +46
   System.Web.UI.Control.EnsureChildControls() +87
   System.Web.UI.Control.PreRenderRecursiveInternal() +44
   System.Web.UI.WebControls.WebParts.WebPart.PreRenderRecursiveInternal() +42
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842

Any help would be greatly appreciated. Let me know if I have to sent through more information.

Thank you,
Pierre.

ScriptManager and StyleSheetManager

answered on 22 Apr 2010

3 answers

165 views

Grouping Err in RadScheduler

Hi, i face grouping error in groping resources in radscheduler.
I had follow all the steps in the demo but when it come to groupby it fail.
My error is as below :
Line :3396
Char:26
Err:'this.cells0.offsetHeight is null or not an object'
code:0

Does anyone has idea on this ??

My coding is as below :

    
            <telerik:RadScheduler ID="RadScheduler1" runat="server" GroupBy="LineNum"  
        
                    DataKeyField="ID" DataSubjectField="Desc" 
        
                            DataStartField="StartDate" DataEndField="EndDate" 
        
                            DataRecurrenceField="ID" SelectedDate="2010-04-22" 
        
                            DataRecurrenceParentKeyField="ID" RowHeaderWidth="52px" 
        
                             SelectedView =TimelineView  
        
                            > 
        
                            <AdvancedForm Modal="true" /> 
        
                    </telerik:RadScheduler>

    
            Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 
        
                    Try 
        
                        If Not Page.IsPostBack = True Then 
        
                           CreateTable() 
        
                           AddRowTomdsResult() 
        
                            RadScheduler1.DataSource = mdsResult 
        
                            RadScheduler1.DataBind() 
        
                        End If 
        
                    Catch ex As Exception 
        
                        Throw ex 
        
                    End Try 
        
                   Private Sub AddRowTomdsResult() 
        
                    Dim dr As Data.DataRow 
        
                    Try 
        
                        dr = mdsResult.Tables(0).NewRow 
        
                        dr("ID") = 1 
        
                        dr("LineNum") = "1.1" 
        
                        dr("ShiftNum") = "Morning" 
        
                        dr("Desc") = "X1" 
        
                        dr("StartDate") = "3/3/2010" 
        
                        dr("EndDate") = "3/3/2010" 
        
                        mdsResult.Tables(0).Rows.Add(dr) 
        
                        dr = mdsResult.Tables(0).NewRow 
        
                        dr("ID") = 2 
        
                        dr("LineNum") = "1.1" 
        
                        dr("ShiftNum") = "Morning" 
        
                        dr("Desc") = "X1" 
        
                        dr("StartDate") = "3/3/2010" 
        
                        dr("EndDate") = "3/3/2010" 
        
                        mdsResult.Tables(0).Rows.Add(dr) 
        
                        dr = mdsResult.Tables(0).NewRow 
        
                        dr("ID") = 3 
        
                        dr("LineNum") = "1.1" 
        
                        dr("ShiftNum") = "Morning" 
        
                        dr("Desc") = "X1" 
        
                        dr("StartDate") = "3/3/2010" 
        
                        dr("EndDate") = "3/3/2010" 
        
                        mdsResult.Tables(0).Rows.Add(dr) 
        
                        dr = mdsResult.Tables(0).NewRow 
        
                        dr("ID") = 4 
        
                        dr("LineNum") = "1.2" 
        
                        dr("ShiftNum") = "Grave" 
        
                        dr("Desc") = "X1" 
        
                        dr("StartDate") = "4/22/2010" 
        
                        dr("EndDate") = "4/22/2010" 
        
                        mdsResult.Tables(0).Rows.Add(dr) 
        
                        dr = mdsResult.Tables(0).NewRow 
        
                        dr("ID") = 5 
        
                        dr("LineNum") = "1.2" 
        
                        dr("ShiftNum") = "Grave" 
        
                        dr("Desc") = "X1" 
        
                        dr("StartDate") = "4/22/2010" 
        
                        dr("EndDate") = "4/22/2010" 
        
                        mdsResult.Tables(0).Rows.Add(dr) 
        
                        dr = mdsResult.Tables(0).NewRow 
        
                        dr("ID") = 6 
        
                        dr("LineNum") = "1.2" 
        
                        dr("ShiftNum") = "Grave" 
        
                        dr("Desc") = "X1" 
        
                        dr("StartDate") = "4/22/2010" 
        
                        dr("EndDate") = "4/22/2010" 
        
                        mdsResult.Tables(0).Rows.Add(dr) 
        
                    Catch ex As Exception 
        
                        Throw ex 
        
                    End Try 
        
                End Sub 
        
                Private Sub CreateTable() 
        
                    Dim table As New DataTable 
        
                    Dim column As DataColumn 
        
                    Try 
        
                        column = New DataColumn() 
        
                        column.DataType = System.Type.GetType("System.Int32") 
        
                        column.ColumnName = "ID" 
        
                        column.ReadOnly = False 
        
                        column.Unique = False 
        
                        table.Columns.Add(column) 
        
                        column = New DataColumn() 
        
                        column.DataType = System.Type.GetType("System.String") 
        
                        column.ColumnName = "LineNum" 
        
                        column.ReadOnly = False 
        
                        column.Unique = False 
        
                        table.Columns.Add(column) 
        
                        column = New DataColumn() 
        
                        column.DataType = System.Type.GetType("System.String") 
        
                        column.ColumnName = "ShiftNum" 
        
                        column.ReadOnly = False 
        
                        column.Unique = False 
        
                        table.Columns.Add(column) 
        
                        column = New DataColumn() 
        
                        column.DataType = System.Type.GetType("System.String") 
        
                        column.ColumnName = "Desc" 
        
                        column.ReadOnly = False 
        
                        column.Unique = False 
        
                        table.Columns.Add(column) 
        
                        column = New DataColumn() 
        
                        column.DataType = System.Type.GetType("System.DateTime") 
        
                        column.ColumnName = "StartDate" 
        
                        column.ReadOnly = False 
        
                        column.Unique = False 
        
                        table.Columns.Add(column) 
        
                        column = New DataColumn() 
        
                        column.DataType = System.Type.GetType("System.DateTime") 
        
                        column.ColumnName = "EndDate" 
        
                        column.ReadOnly = False 
        
                        column.Unique = False 
        
                        table.Columns.Add(column) 
        
                        mdsResult.Tables.Add(table) 
        
                    Catch ex As Exception 
        
                        Throw ex 
        
                    End Try 
        
                End Sub 
        
                End Sub

Scheduler

answered on 22 Apr 2010

2 answers

151 views

[Solved] GridDropDownColumn not populating succeeding rows

When I entered edit mode, rows under my GridDropDownColumn are not being populated. Img1 shows view mode and img2 shows the edit mode of the Radgrid. Here are the codes:

                    protected void grdSalesPerson_ItemDataBound(object sender, GridItemEventArgs e)         
                    {         
                        if (e.Item is GridEditableItem && (e.Item as GridEditableItem).IsInEditMode)         
                        {         
                            GridEditableItem editedItem = e.Item as GridEditableItem;         
                            GridEditManager editMan = editedItem.EditManager;         
                     
                            GridDropDownColumnEditor editor = editMan.GetColumnEditor("Manager") as GridDropDownColumnEditor;         
                            Int64 selectedManagerID = ((User)editedItem.DataItem).ManagerID;         
                                   
                            editor.DataSource = Managers;         
                            editor.DataTextField = "FullName";         
                            editor.DataValueField = "UserID";         
                            editor.DataBind();         
                     
                            editor.SelectedValue = selectedManagerID.ToString();         
                                   
                        }         
                    }         

:

                    <MasterTableView EditMode="InPlace" DataKeyNames="UserID">         
                <Columns>         
                    <telerik:GridBoundColumn DataField="FullName" HeaderText="Salesperson"          
                        UniqueName="FullName" ReadOnly="True">         
                    </telerik:GridBoundColumn>         
                    <telerik:GridBoundColumn DataField="Email" HeaderText="Email"          
                        UniqueName="Email" ReadOnly="True">         
                    </telerik:GridBoundColumn>         
                    <telerik:GridDropDownColumn UniqueName="Manager" ListDataMember="Users"         
                        ListTextField="ManagerFullName" ListValueField="ManagerID"         
                        HeaderText="Manager" DataField="ManagerID">         
                    </telerik:GridDropDownColumn>         
                </Columns>         
            </MasterTableView>         
                </telerik:RadGrid>         

Grid

answered on 22 Apr 2010

1 answer

261 views

MasterTableView.FilterExpression en un RadGrid en un FormView

MasterTableView.FilterExpression in a RadGrid in a FormView

I tried to apply a filter to a Radgrid found in a FormView, but apparently the filter is not applied correctly, I am using the following:

    
             ((RadGrid)FormView1.FindControl("gvregion")).MasterTableView.FilterExpression = "([Localidad] LIKE '%SANTA%')";  
        
             ((RadGrid)FormView1.FindControl("gvregion")).MasterTableView.Rebind();

Check if the property was correctly set will with the following:

    
            Response.Write(((RadGrid)FormView1.FindControl("gvregion")).MasterTableView.FilterExpression);

But it does not filter properly, displays: "No records to display." There are records that affect the criteria but does not display, anyone can help me?, Thanks.

Grid