Postback on first select, ajax call next ?

[CSurieux]

Hello,

It have an ascx with a RadAjaxManagerProxy + a RadTreeview + RadGrid
The grid disply info from the selected node in the treeview.

After first display of the page, when I select a node, I get a postback.
Then I select another node and it is an Ajax call ?

How to get rid of this initial postback ?
Could you help find my error, here is my ascx code ?

Thanks
CS

<%@ Control Inherits="AddonNice.WTPageModules.Pages.PortalPagesManager" Language="c#"
    AutoEventWireup="False" CodeBehind="PortalPagesManager.ascx.cs" %>
<%@ Register Assembly="Telerik.Web.UI"    Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<asp:ScriptManagerProxy ID="ScriptManagerProxy1" runat=server />
<telerik:RadCodeBlock ID="CodeBlock1" runat="server">
<script type="text/javascript">
<!--
//<![CDATA[
function ContextMenuClick(node, itemText,itemID)
{    
 if (itemID == "EditName")
 {  
  node.StartEdit();
 }
 return true;
}

//]]>
// -->
</script>
</telerik:RadCodeBlock>
<telerik:RadAjaxManagerProxy ID="RadAjaxManagerProx1" runat="server" >
    <AjaxSettings>
        <telerik:AjaxSetting AjaxControlID="DeleteBtn" >
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="RadTree1" LoadingPanelID="AjaxLoadingPanel1" />
                <telerik:AjaxUpdatedControl ControlID="RadGrid1" LoadingPanelID="AjaxLoadingPanel1" />
            </UpdatedControls>
        </telerik:AjaxSetting>
        <telerik:AjaxSetting AjaxControlID="RadTree1">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="RadTree1" LoadingPanelID="AjaxLoadingPanel1" />
                <telerik:AjaxUpdatedControl ControlID="RadGrid1" LoadingPanelID="AjaxLoadingPanel1" />
            </UpdatedControls>
        </telerik:AjaxSetting>
    </AjaxSettings>
</telerik:RadAjaxManagerProxy>
<table cellpadding="5" cellspacing="0">
    <tr>
        <td colspan="3">
            <table>
                <tr>
                    <td align="left">
                        <asp:Literal ID="Literal1" Text="<%$ Resources:ResourcesWTCRM,AM_TREEVIEW_HELP %>"
                            runat="server" />
                    </td>
                </tr>
                <tr>
                    <td align="center">
                        <asp:ImageButton ID="RenameBtn" SkinID="RenameBtn" AlternateText="<%$ Resources:ResourcesWTCRM,AM_CONTEXT_EDITNAME %>"
                            runat="server" />
                        <asp:ImageButton ID="EditBtn" SkinID="EditBtn" AlternateText="<%$ Resources:ResourcesWTCRM,EDITBTN %>"
                            runat="server" />
                        <asp:ImageButton ID="DeleteBtn" SkinID="DeleteBtn" AlternateText="<%$ Resources:ResourcesWTCRM,DELETEBTN %>"
                            runat="server" />
                        <asp:ImageButton ID="addBtn" SkinID="AddPage" AlternateText="<%$ Resources:ResourcesWTCRM,ADDTAB %>"
                            runat="server" />
                    </td>
                </tr>
            </table>
        </td>
    </tr>
    <tr valign="top">
        <td>
            <telerik:RadTreeView ID="RadTree1" AllowNodeEditing="True" MultipleSelect="False"
                Skin="Web20" Width="400" runat="server" BeforeClientContextClick="ContextMenuClick"
                DragAndDrop="True" DragAndDropBetweenNodes="True" CausesValidation="false" ShowLineImages="false"
                AutoPostBack="true" />
        </td>
        <td align="left">
            <telerik:RadGrid ID="RadGrid1" runat="server" GridLines="None" Skin="Web20" Width="400px"
                AutoGenerateColumns="False">
                <MasterTableView>
                    <ExpandCollapseColumn Visible="False" Resizable="False">
                        <HeaderStyle Width="20px" />
                    </ExpandCollapseColumn>
                    <RowIndicatorColumn Visible="False">
                        <HeaderStyle Width="20px" />
                    </RowIndicatorColumn>
                    <Columns>
                        <telerik:GridBoundColumn DataField="Name" HeaderText="<%$ Resources:ResourcesWTCRM,AM_NAME %>"
                            ItemStyle-Width='200' UniqueName="Name">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="Parameter" HeaderText="<%$ Resources:ResourcesWTCRM,AM_PARAMETER %>"
                            ItemStyle-Width='400' UniqueName="Parameter">
                        </telerik:GridBoundColumn>
                    </Columns>
                </MasterTableView>
                <ExportSettings>
                    <Pdf PageBottomMargin="" PageFooterMargin="" PageHeaderMargin="" PageHeight="11in"
                        PageLeftMargin="" PageRightMargin="" PageTopMargin="" PageWidth="8.5in" />
                </ExportSettings>
            </telerik:RadGrid>
        </td>
        <td>
            <telerik:RadAjaxLoadingPanel ID="AjaxLoadingPanel1" runat="server" Height="75px"
                Width="75px" Style="position: absolute; left: 500px; top: 200px" IsSticky="True"
                Transparency="50">
                <asp:Image ID="Image1" runat="server" AlternateText="Loading..."  SkinID="WT_LoadingProgressBarr" >
                </asp:Image>
            </telerik:RadAjaxLoadingPanel>
        </td>
    </tr>
</table>

[Veselin Vasilev]

Hello Christian Surieux,

I have prepared a small project for you. It contains three aspx pages, a user control and a master page.
The user control has RadAjaxManagerProxy, RadTreeView and RadGrid. Clicking on a node shows the appropriate records in the grid.

• default.aspx page contains RadAjaxManager and the user control. In Page_Load event handler I check        if (RadAjaxManager1.IsAjaxRequest) and it is true every time I click on a node - so no postback.
• default2.aspx page has the user control placed in it and uses the Master page. The Master page contains RadAjaxManager. In the master page's Page_Load event handler I check                                              if (RadAjaxManager1.IsAjaxRequest) and it is true every time I click on a node - so no postback.
• default3.aspx page does not use the user control. It just have a treeview, a grid and a RadAjaxManager. In its Page_Load event handler I again check if (RadAjaxManager1.IsAjaxRequest) and it is true every time I click on a node - so no postback.

You can download the project and give it a try.

Greetings,
Veskoni
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

[CSurieux]

Hello Veskoni,

Sorry I have started another thread on this subject because I have loosed this one, due to my inattention.
I worked around your sample but I am still unable to reproduce my problem.
I am very disapointed, and I think that I'am experimenting an already encountered error due to scriptmanager and javascript loading and validation.
As if scriptmanager/RadAjaxManager was not correctly loaded for the first display of my page.

Any new information for me ?

Regards
CS

[Veselin Vasilev]

Hello Christian Surieux,

I believe the best way to proceed is to send us a simple project that demonstrates the problem.

Thanks for your time and cooperation.

All the best,
Veskoni
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center