Ajax refresh only depended control on apply filter

[Jonny]

Hi, I'am constructing filter expression directly, not using FilterContainerID. I have RadTreeView, which must be ajax refreshed, when user click apply button in filter. I use next code to support ajax refresh filter, when user edit filter expression:

<rad:RadAjaxManagerProxy ID="AjaxManagerProxy" runat="server">
    <AjaxSettings>
        <rad:AjaxSetting AjaxControlID="Filter">
            <UpdatedControls>
                <rad:AjaxUpdatedControl ControlID="Filter" LoadingPanelID="LoadingPanel"/>
            </UpdatedControls>
       </rad:AjaxSetting>
    </AjaxSettings>
</rad:RadAjaxManagerProxy>

Next code refresh RadTreeView on each user filter edit operation, this wrong. I need refresh only RadTreeView(not full page with other controls) on apply button click:

<rad:RadAjaxManagerProxy ID="AjaxManagerProxy" runat="server">
    <AjaxSettings>
        <rad:AjaxSetting AjaxControlID="Filter">
            <UpdatedControls>
                <rad:AjaxUpdatedControl ControlID="Filter" LoadingPanelID="LoadingPanel"/>
                <rad:AjaxUpdatedControl ControlID="TreeView" LoadingPanelID="LoadingPanel"/>
            </UpdatedControls>
       </rad:AjaxSetting>
    </AjaxSettings>
</rad:RadAjaxManagerProxy>

Next code, throws
"Microsoft JScript runtime error: Sys.InvalidOperationException: Could not find UpdatePanel with ID 'ctl00$ctl00$MainMasterContent$MainContent$TreeViewPanel'. If it is being updated dynamically then it must be inside another UpdatePanel."
when user click apply button:

protected void Page_Load(object sender, EventArgs e)
{
    var applyFilterButton = Filter.Controls.OfType<Button>().First();

    var ajaxSetting = new AjaxSetting(applyFilterButton.UniqueID);
    ajaxSetting.UpdatedControls.Add(new AjaxUpdatedControl(TreeView.ID, LoadingPanel.ID));
    AjaxManagerProxy.AjaxSettings.Add(ajaxSetting);
}

Please, help solve this problem.

[Nikolay Rusev]

Hello Jonny,

Following demo shows how you can trigger filtering on RadFilter from external button:
http://demos.telerik.com/aspnet-ajax/filter/examples/filterinradwindow/defaultcs.aspx

Few steps are required:
 - set ShowApplyButton="false" of RadFilter
 - create custom button and attach click handler:

<asp:LinkButton runat="server" ID="ApplyButton"
 OnClick="ApplyButton_Click" Text="Apply Expressions"/>

 - on click handler call FireApplyCommand of RadFilter:

protected void ApplyButton_Click(object sender, EventArgs e)
{
   RadFilter1.FireApplyCommand();
}

 - ajaxify the button to update target control

<telerik:AjaxSetting  AjaxControlID="ApplyButton">
  <UpdatedControls>
    <telerik:AjaxUpdatedControl ControlID="RadGrid1" />
  </UpdatedControls>
</telerik:AjaxSetting>

Regards,
Nikolay
the Telerik team

[Jonny]

Thank you, i miss this event.