Radgrid filtering doesn't work when i use RadAjaxLoadingPanel

[Mariam]

hello, i try to use RadAjaxLoadingPanel , but rad grid column filters down't work . here is my code samples
p.s im using user control

<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
</telerik:RadScriptManager>

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="ACMSGrid">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="ACMSGrid" LoadingPanelID="RadAjaxLoadingPanel1" />
                </UpdatedControls>
            </telerik:AjaxSetting>

        </AjaxSettings>
    </telerik:RadAjaxManager>

 <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" />

<%--OnPreRender="ACMSGrid_PreRender"--%>
<telerik:RadGrid ID="ACMSGrid" runat="server" OnNeedDataSource="ACMSGrid_NeedDataSource"
    AllowFilteringByColumn="True" AllowPaging="True" OnItemDataBound="ACMSGrid_ItemDataBound"
    AllowSorting="True" CellSpacing="0" EnableLinqExpressions="false"
   OnPreRender="ACMSGrid_PreRender"
    GridLines="None" AutoGenerateColumns="False">
    <MasterTableView AllowFilteringByColumn="True">
        <CommandItemSettings ExportToPdfText="Export to PDF"></CommandItemSettings>

        <RowIndicatorColumn Visible="True" FilterControlAltText="Filter RowIndicator column">
            <HeaderStyle Width="20px"></HeaderStyle>
        </RowIndicatorColumn>

        <ExpandCollapseColumn Visible="True" FilterControlAltText="Filter ExpandColumn column">
            <HeaderStyle Width="20px"></HeaderStyle>
        </ExpandCollapseColumn>

        <EditFormSettings>
            <EditColumn FilterControlAltText="Filter EditCommandColumn column">
            </EditColumn>
        </EditFormSettings>
        <Columns>
            <telerik:GridBoundColumn DataField="ACMS_Number" HeaderText="ნომერი"
                SortExpression="ACMS_Number" UniqueName="ACMS_Number" FilterControlWidth="40px"
                AutoPostBackOnFilter="False" CurrentFilterFunction="Contains"
                FilterDelay="1000" ShowFilterIcon="false">
            </telerik:GridBoundColumn>

            <telerik:GridDateTimeColumn DataField="ACMS_Date" SortExpression="ACMS_Date" HeaderText="თარიღი"
                UniqueName="ACMS_Date" CurrentFilterFunction="Contains" DataFormatString="{0:dd.MM.yyyy}"
                AutoPostBackOnFilter="True" FilterDelay="4000" ShowFilterIcon="false">
            </telerik:GridDateTimeColumn>

            <telerik:GridHyperLinkColumn AllowFiltering="false" DataTextFormatString="pdf '{0}'"
                DataNavigateUrlFields="id" UniqueName="id" DataNavigateUrlFormatString="~/common/ACMS_get_doc.aspx?id={0}"
                HeaderText="დოკუმენტი" DataTextField="id">
            </telerik:GridHyperLinkColumn>

            <telerik:GridBoundColumn DataField="ACMS_Type" HeaderText="ტიპი" HeaderStyle-Width="350px"
                SortExpression="ACMS_Type" UniqueName="ACMS_Type">
                <FilterTemplate>
                    <telerik:RadComboBox runat="server" ID="FilterCombo" DataSourceID="SqlDataSource3"
                        DataValueField="ACMS_Type" DataTextField="ACMS_Type" AutoPostBack="true"  AppendDataBoundItems="true"
                        SelectedValue='<%# ((GridItem)Container).OwnerTableView.GetColumn("ACMS_Type").CurrentFilterValue %>'
                        OnSelectedIndexChanged="FilterCombo_SelectedIndexChanged">
                            <Items>
                                  <telerik:RadComboBoxItem Text="" />

                            </Items>
                    </telerik:RadComboBox>



      <asp:Button ID="btnShowAll" runat="server" OnClick="btnShowAll_Click" Text="ფილტრის გასუფთავება" />

                </FilterTemplate>
            </telerik:GridBoundColumn>
        </Columns>

    </MasterTableView>
    <ClientSettings>
        <Resizing AllowRowResize="True" EnableRealTimeResize="True" ResizeGridOnColumnResize="True"
            AllowColumnResize="True"></Resizing>

    </ClientSettings>
    <HeaderStyle Width="250px"></HeaderStyle>
    <FilterMenu EnableImageSprites="False"></FilterMenu>
</telerik:RadGrid>

<asp:SqlDataSource ID="SqlDataSource3" ConnectionString="<%$ ConnectionStrings:db_conn %>"
    ProviderName="System.Data.SqlClient" SelectCommand="SELECT  ACMS_type FROM itdc_ACMS_type"
    runat="server"></asp:SqlDataSource>

and here is codebehind

protected void Page_Load(object sender, EventArgs e)
   {

       acms get_data = new acms();
       ACMSGrid.DataSource = get_data.get_ACMS();
       ACMSGrid.DataBind();
   }

   protected void ACMSGrid_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
   {
       acms get_data = new acms();
       ACMSGrid.DataSource = get_data.get_ACMS();
       ACMSGrid.DataBind();
   }

   protected void ACMSGrid_ItemDataBound(object sender, GridItemEventArgs e)
   {
       if (e.Item is GridDataItem)
       {
           GridDataItem item = (GridDataItem)e.Item;
           HyperLink hyplnk = (HyperLink)item["id"].Controls[0];
           hyplnk.ImageUrl = "~/m/i/pdf.gif";
       }
   }



   protected void FilterCombo_SelectedIndexChanged(object o, RadComboBoxSelectedIndexChangedEventArgs e)
   {
       string filterExpression;
       filterExpression = "([ACMS_type] = '" + e.Value + "')";
       ACMSGrid.MasterTableView.FilterExpression = filterExpression;
       ACMSGrid.MasterTableView.Rebind();
   }
   protected void ACMSGrid_PreRender(object sender, System.EventArgs e)
   {


       foreach (GridFilteringItem filterItem in ACMSGrid.MasterTableView.GetItems(GridItemType.FilteringItem))
       {
           RadComboBox dropdown = (RadComboBox)filterItem.FindControl("FilterCombo");

           //Response.Write(dropdown.SelectedValue);
           if (dropdown.SelectedValue == "All")
           {
               RefreshCombos();
           }
           else
           {

           }
       }
   }

   protected void RefreshCombos()
   {

       ACMSGrid.MasterTableView.FilterExpression = string.Empty;

       ACMSGrid.MasterTableView.Rebind();
   }

   protected void btnShowAll_Click(object sender, EventArgs e)
   {
       ACMSGrid.MasterTableView.FilterExpression = string.Empty;

       foreach (GridColumn column in ACMSGrid.MasterTableView.RenderColumns)
       {
           if (column is GridBoundColumn)
           {
               GridBoundColumn boundColumn = column as GridBoundColumn;
               boundColumn.CurrentFilterValue = string.Empty;
           }
       }

       ACMSGrid.MasterTableView.Rebind();

   }

[Pavlina]

Hello,

Does the problem with grid filtering persists only when RadGrid is Ajaxified? If you disable ajax by setting EnableAjax property to false, is there are any difference.

All the best,
Pavlina
the Telerik team