[Solved] Filter menu doesn't work after postback.

[Grzesiek]

Hello!

I have problem with RadGrid.
The site (and codebehind) code is at the bottom.

I bind records to RadGrid - I have paging enabled. I go to the 2nd page. Then I write some string in filter textbox and choose "StartsWith".
Everything is okay - I have correct records. Now I want to change filter string, but the context menu doesn't show up.

I don't know what's going on.


Site:

<style type="text/css">
  .item, .alternatingItem
{
   float: left;
   padding: 15px;
   margin: 15px;
   width: 250px;
   height: 100px;
   border: 1px solid threedshadow;
   line-height:20px;
}
.item
{
   background: whitesmoke !important;
}
.alternatingItem
{
   background: window !important;
}
.av{float:left; margin-right:10px; margin-top:5px;}
.rank{margin-top:5px;}
      .loading
        {
            background-color: #fff;
            height:100%;
            width:100%;
        }
        .loader
        {
            margin:auto;
        }
</style>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="cph1" Runat="Server">
<h2 class="title">Nasza społeczność</h2>
        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
            <AjaxSettings>
                <telerik:AjaxSetting AjaxControlID="RG1">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="RG1" LoadingPanelID="RALP1" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
            </AjaxSettings>
        </telerik:RadAjaxManager>

    <asp:Panel ID="P1" runat="server">
        <telerik:RadGrid ID="RG1" DataSourceID="GetRankingUsers" AllowFilteringByColumn="true"
           runat="server" GridLines="None" AllowPaging="true" AllowSorting="true"
           PageSize="9" Skin="WebBlue" AutoGenerateColumns="False">
           <PagerStyle Mode="NextPrevAndNumeric" FirstPageToolTip="Pierwsza strona" HorizontalAlign="Center"
                LastPageToolTip="Ostatnia strona" NextPagesToolTip="Następne strony"
                NextPageToolTip="Następna strona" PageSizeLabelText="Wyników na stronę:"
                PrevPagesToolTip="Poprzednie strony" PrevPageToolTip="Poprzednia strona" PagerTextFormat="{4} Strona {0} z {1} ({5} rekordów)" />
           <MasterTableView TableLayout="Fixed">
           <Columns>
            <telerik:GridBoundColumn DataField="user_id" HeaderText="#ID" AutoPostBackOnFilter="true" CurrentFilterFunction="EqualTo" ShowFilterIcon="false">
            </telerik:GridBoundColumn>
                <telerik:GridBoundColumn DataField="UserName" HeaderText="Gracz" AutoPostBackOnFilter="true">
            </telerik:GridBoundColumn>
                <telerik:GridBoundColumn DataField="game_id" HeaderText="#ID w grze" AutoPostBackOnFilter="true">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="game_name" HeaderText="Nick w grze">
            </telerik:GridBoundColumn>
            <telerik:GridDateTimeColumn FilterControlWidth="100px" DataField="forum_date_join" HeaderText="Dołączył" SortExpression="forum_date_join"
                        UniqueName="forum_date_join" PickerType="DatePicker" DataFormatString="{0:D}" AllowFiltering="false"></telerik:GridDateTimeColumn>
             <telerik:GridBoundColumn DataField="forum_total_points" HeaderText="Ranking" AllowFiltering="false" AllowSorting="true">
            </telerik:GridBoundColumn>
                <telerik:GridBoundColumn DataField="avatar" HeaderText="Użytkownik" Visible="false" AllowFiltering="false" AllowSorting="false">
            </telerik:GridBoundColumn>
           </Columns>
               <ItemTemplate>
                   <%#IIf(Not CType(Container, GridItem).ItemIndex = 0, "</td></tr></table>", "")%>
                   <asp:Panel ID="ItemContainer" CssClass='<%# IIf(CType(Container, GridItem).ItemType = GridItemType.Item, "item", "alternatingItem") %>'
                        runat="server">
                        <img src='<%#forum_engine.AvatarUrl(Eval("avatar"))%>' class="border av" alt='<%#Eval("UserName") %>'/>
                        <b><a href='<%# "http://www.erepublik.com.pl/profil/u-" & Eval("user_id") %>' target="_blank"><%# Eval("UserName")%></a></b>
                        <br />
                        Dołączył: <%#Convert.ToDateTime(Eval("forum_date_join")).ToString("dd MMMM yyyy")%>
                        <br />
                        Znany jako: <b><a href='<%# "http://www.erepublik.com/en/citizen/profile/" & Eval("game_id") %>' target="_blank"><%#Eval("game_name")%></a></b><br />
                        <img src='<%# ResolveUrl(forum_engine.ReturnPoints(Eval("forum_total_points"),Eval("game_id"))) %>' class="rank" title='<%#Eval("forum_total_points") & " pkt"%>' />
                   </asp:Panel>
               </ItemTemplate>
           </MasterTableView>
            <SortingSettings SortedAscToolTip="Sortuj rosnąco"
                SortedDescToolTip="Sortuj malejąco" SortToolTip="Sortuj" />
       </telerik:RadGrid>
        </asp:Panel>
               <telerik:RadAjaxLoadingPanel ID="RALP1" runat="server" EnableSkinTransparency="true" Transparency="10">
                   <div class="loading">
                    <asp:Image ID="l1" runat="server" ImageUrl="~/images/loader.gif" CssClass="loader"/>
                   </div>
        </telerik:RadAjaxLoadingPanel>
<asp:SqlDataSource ID="GetRankingUsers" runat="server"
    ConnectionString="<%$ ConnectionStrings:DbSqlConnection %>"
    SelectCommand="erepublik_users_getranking" SelectCommandType="StoredProcedure">
</asp:SqlDataSource>

Code behind:

 Protected Sub RG1_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles RG1.PreRender
        Dim itemCount As Integer = TryCast(sender, RadGrid).MasterTableView.GetItems(GridItemType.Item).Length + TryCast(sender, RadGrid).MasterTableView.GetItems(GridItemType.AlternatingItem).Length
        For Each item As GridItem In TryCast(sender, RadGrid).Items
            If TypeOf item Is GridDataItem AndAlso item.ItemIndex < itemCount - 1 Then
                TryCast(TryCast(item, GridDataItem)("user_id"), TableCell).Controls.Add(New LiteralControl("<table style='display:none;'><tr><td>"))
            End If
        Next
    End Sub

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Page.Title = System.Configuration.ConfigurationManager.AppSettings("tytul_small") & " | Nasza społeczność"

        Dim Menu As GridFilterMenu = RG1.FilterMenu
        Dim item As RadMenuItem

        Dim i As Integer = 0
        While i < Menu.Items.Count
            If Menu.Items(i).Text = "NoFilter" Or _
               Menu.Items(i).Text = "StartsWith" Or _
               Menu.Items(i).Text = "EqualTo" Then
                i = i + 1
            Else
                Menu.Items.RemoveAt(i)
            End If
        End While


        For Each item In Menu.Items
            'change the text for the StartsWith menu item
            Dim it As String = String.Empty

            Select Case item.Text
                Case "StartsWith"
                    item.Text = "Zaczyna się od"
                Case "NoFilter"
                    item.Text = "Brak filtra"
                Case "EqualTo"
                    item.Text = "Dokładnie"
            End Select
        Next




    End Sub

[Grzesiek]

Moving code below from Page_Load to Page_Init solved the problem:

Dim Menu As GridFilterMenu = RG1.FilterMenu
        Dim item As RadMenuItem

        Dim i As Integer = 0
        While i < Menu.Items.Count
            If Menu.Items(i).Text = "NoFilter" Or _
               Menu.Items(i).Text = "StartsWith" Or _
               Menu.Items(i).Text = "EqualTo" Then
                i = i + 1
            Else
                Menu.Items.RemoveAt(i)
            End If
        End While


        For Each item In Menu.Items
            'change the text for the StartsWith menu item
            Dim it As String = String.Empty

            Select Case item.Text
                Case "StartsWith"
                    item.Text = "Zaczyna się od"
                Case "NoFilter"
                    item.Text = "Brak filtra"
                Case "EqualTo"
                    item.Text = "Dokładnie"
            End Select
        Next

[Grzesiek]

Moving code below from Page_Load to Page_Init solved the problem:

Dim Menu As GridFilterMenu = RG1.FilterMenu
        Dim item As RadMenuItem

        Dim i As Integer = 0
        While i < Menu.Items.Count
            If Menu.Items(i).Text = "NoFilter" Or _
               Menu.Items(i).Text = "StartsWith" Or _
               Menu.Items(i).Text = "EqualTo" Then
                i = i + 1
            Else
                Menu.Items.RemoveAt(i)
            End If
        End While


        For Each item In Menu.Items
            'change the text for the StartsWith menu item
            Dim it As String = String.Empty

            Select Case item.Text
                Case "StartsWith"
                    item.Text = "Zaczyna się od"
                Case "NoFilter"
                    item.Text = "Brak filtra"
                Case "EqualTo"
                    item.Text = "Dokładnie"
            End Select
        Next