This is a migrated thread and some comments may be shown as answers.

RadAjaxManager gives error: Could not find UpdatePanel

1 Answer 203 Views

Ajax

This is a migrated thread and some comments may be shown as answers.

Ilona asked on 11 Aug 2010, 08:46 AM

Hi,

In my page there's a RadSplitter with 3 RadGrids, 2 of them are in a SlidingPane, see aspx-code below.
I want to drag items from the two grids in the slidingPanes into the other grid. Therefore I use the RadAjaxManager with dynamically added AjaxSettings on preRender.

This is what happens:
The first time I drag an item into the grid everything works fine, except the following text appears above the grid:
"16651|updatePanel|ctl00_ContentPlaceHolderMain_ctl00_ContentPlaceHolderMain_grdPlaylistItemsPanel|"

When after that I drag another item into the grid, I get a JS error:
"Runtime-fout Microsoft JScript: Sys.InvalidOperationException: Could not find UpdatePanel with ID 'ctl00_ContentPlaceHolderMain_ctl00_ContentPlaceHolderMain_grdPlaylistItemsPanel'. If it is being updated dynamically then it must be inside another UpdatePanel."

I tried adding the AjaxSettings in the aspx-page or dynamically, but that makes no difference. I even tried to use the AjaxManagerProxy instead of the AjaxManager. Then I don't get the error, but I don't see the loadingPanel.

Here's my code:

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolderMain" runat="server">

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

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Skin="Office2007" />

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

</telerik:RadAjaxManager>

<asp:UpdatePanel runat="server" ID="UpdatePanel">

<ContentTemplate>

<cc1:QYNPanel ID="QynPanel" runat="server">

<asp:Label ID="lblHeader" runat="server" CssClass="panel-header"></asp:Label>

<table class="form">

<tr>

<td>

<asp:Label ID="lblName" runat="server" Text="Name"></asp:Label>

</td>

<td>

<uc1:QYNTextBox ID="txtName" runat="server" Name="Name" MaxLength="255" Width="500" />

</td>

</tr>

<tr>

<td>

<asp:Label ID="lblDescription" runat="server" Text="Description"></asp:Label>

</td>

<td>

<uc1:QYNTextBox ID="txtDescription" runat="server" Name="Description" MaxLength="255"

Width="500" IsValidEmpty="True" />

</td>

</tr>

<tr>

<td>

<asp:Label ID="lblPickPolicy" runat="server" Text="Playback Method"></asp:Label>

</td>

<td>

<asp:RadioButtonList ID="rblPickPolicy" runat="server" AutoPostBack="True">

</asp:RadioButtonList>

</td>

</tr>

<tr>

<td>

<asp:Label ID="lblArchived" runat="server" Text="Archived"></asp:Label>

</td>

<td>

<asp:CheckBox ID="chkArchived" runat="server" />

</td>

</tr>

</table>

<br />

<strong>Playlist Items</strong>

<telerik:RadSplitter ID="RadSplitter1" runat="server">

<telerik:RadPane ID="RadPane1" runat="server">

<telerik:RadGrid ID="grdPlaylistItems" runat="server">

<MasterTableView TableLayout="Fixed">

<Columns>

<telerik:GridTemplateColumn ItemStyle-Width="500" HeaderText="Thumbnail">

<ItemTemplate>

<asp:Image ID="imgThumbnail" runat="server" />

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridBoundColumn DataField="ItemName" HeaderText="Name"></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="PlaylistItemType" HeaderText="Type"></telerik:GridBoundColumn>

<telerik:GridNumericColumn DataField="Duration" FooterText="Total Duration: " HeaderText="Duration"

Aggregate="Sum"></telerik:GridNumericColumn>

<telerik:GridBoundColumn DataField="SortOrder" HeaderText="SortOrder" UniqueName="SortOrder"

Visible="true"></telerik:GridBoundColumn>

<telerik:GridButtonColumn CommandName="Delete" Text="Delete" UniqueName="DeleteColumn"

ItemStyle-Width="30" ConfirmDialogType="RadWindow" ConfirmText="Are you sure you want to delete this item?"></telerik:GridButtonColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

</telerik:RadPane>

<telerik:RadPane ID="RadPane2" runat="server">

<telerik:RadSlidingZone ID="RadSlidingZone1" runat="server">

<telerik:RadSlidingPane ID="SlidingPaneMessages" runat="server">

<div class="radGrid">

<strong>Drag message to playlist</strong>

<br />

<telerik:RadGrid ID="grdMessages" runat="server">

<MasterTableView DataKeyNames="ScalaId, Name" ShowHeader="false">

<SortExpressions>

<telerik:GridSortExpression FieldName="Name" SortOrder="Ascending" />

</SortExpressions>

<Columns>

<telerik:GridTemplateColumn>

<ItemTemplate>

<asp:Image ID="imgThumbnail" runat="server" />

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridBoundColumn DataField="Name" DataType="System.String" ItemStyle-Width="150px"

ItemStyle-Wrap="true">

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

</div>

</telerik:RadSlidingPane>

<telerik:RadSlidingPane ID="SlidingPanePlaylists" runat="server">

<div class="radGrid">

<strong>Drag subplaylist to playlist</strong>

<br />

<telerik:RadGrid ID="grdPlaylists" runat="server">

<MasterTableView DataKeyNames="ScalaId, Name" ShowHeader="false">

<SortExpressions>

<telerik:GridSortExpression FieldName="Name" SortOrder="Ascending" />

</SortExpressions>

<Columns>

<telerik:GridBoundColumn DataField="Name" DataType="System.String" ItemStyle-Width="150px"

ItemStyle-Wrap="true">

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

</div>

</telerik:RadSlidingPane>

</telerik:RadSlidingZone>

</telerik:RadPane>

</telerik:RadSplitter>

<table width="100%">

<tr>

<td colspan="2">

<asp:Label ID="lblValidationMessages" runat="server" Text="" CssClass="errorMessage"></asp:Label>

</td>

</tr>

<tr align="right">

<td>

<asp:Button ID="btnSave" runat="server" Text="Save" OnClick="OnSaveClick" />

<asp:Button ID="btnApply" runat="server" Text="Apply" OnClick="OnApplyClick" />

<asp:Button ID="btnDelete" runat="server" Text="Delete" Visible="false" OnClick="OnDeleteClick"

CausesValidation="false" OnClientClick="return confirm('Are you sure this playlist must be deleted?')" />

<asp:Button ID="btnCancel" runat="server" Text="Cancel" OnClick="OnBackClick" CausesValidation="false" />

</td>

</tr>

</table>

</cc1:QYNPanel>

</ContentTemplate>

</asp:UpdatePanel>

</asp:Content>

There is a MasterPage, but there's no Ajax or RadControls in it.

OnPreRender:

protected override void OnPreRender(EventArgs e)

{

base.OnPreRender(e);

//add AjaxManager settings

RadAjaxManager1.AjaxSettings.AddAjaxSetting(grdPlaylistItems, grdPlaylistItems, RadAjaxLoadingPanel1);

RadAjaxManager1.AjaxSettings.AddAjaxSetting(grdMessages, grdPlaylistItems, RadAjaxLoadingPanel1);

RadAjaxManager1.AjaxSettings.AddAjaxSetting(grdPlaylists, grdPlaylistItems, RadAjaxLoadingPanel1);

//set height of Splitter dynamically

RadSplitter1.Height = (LoadedPlaylistItems.Count * 57) + 60;

}

Thanks!

RadAjaxManager gives error: Could not find UpdatePanel

1 Answer, 1 is accepted