[Solved] Another Masterpage/Usercontrol question

[Eric]

I have been through the different examples of using MasterPages and UserControls with RadAjax for a couple of days.  I have gotten pretty far.  Here is my masterpage (relevant sections only):

        <asp:ScriptManager ID="ScriptManager1" runat="server" />
        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" EnableHistory="True" />
        <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" height="75px" width="75px" Transparency="10">
            <asp:Image ID="Image1" ImageUrl="~/Img/Loading.gif" BorderWidth="0px" AlternateText="Loading"
                runat="server" Style="margin-top: 45px;"></asp:Image>
        </telerik:RadAjaxLoadingPanel>
        <telerik:RadSplitter ID="RadSplitter1" runat="server" Height="100%" Width="100%">
            <telerik:RadPane ID="navigationPane" runat="server" Height="100%" Width="150">
              <!-- Navigation elements -->
            </telerik:RadPane>
            <telerik:RadSplitBar ID="NavigationSplitBar" runat="server" CollapseMode="Forward"></telerik:RadSplitBar>
            <telerik:RadPane ID="contentPane" runat="server" Scrolling="none">
                <telerik:RadSplitter ID="MasterDetailSplitter" runat="server" Orientation="Horizontal">
                    <telerik:RadPane ID="topPane" runat="server">
                        <asp:ContentPlaceHolder ID="MainPlaceHolder" runat="server" />
                    </telerik:RadPane>
                    <telerik:RadSplitBar ID="MasterDetailSplitBar" runat="server" CollapseMode="Both" Height="50%"></telerik:RadSplitBar>
                    <telerik:RadPane ID="bottomPane" runat="server" Height="50%">
                        <asp:ContentPlaceHolder ID="DetailPlaceHolder" runat="server" />
                    </telerik:RadPane>
                </telerik:RadSplitter>
            </telerik:RadPane>
        </telerik:RadSplitter>

Here is my Default.aspx:

<asp:Content ContentPlaceHolderID="MainPlaceHolder" ID="Content1" runat="server">
    <uc1:MyGrid ID="MyGrid" runat="server"/>
</asp:Content>

<asp:Content ContentPlaceHolderID="DetailPlaceHolder" ID="Content2" runat="server">
    <asp:Panel ID="DetailPanel1" runat="server" />
</asp:Content>

Default.aspx.cs:

RadAjaxManager ajaxManager = Master.FindControl("RadAjaxManager1") as RadAjaxManager;

Control mainPlaceHolder = Master.FindControl("MainPlaceHolder");

Control personnelGroupsGrid = mainPlaceHolder.FindControl("PersonnelGroupGrid1");

Control detailPlaceHolder = Master.FindControl("DetailPlaceHolder");

Control detailPanel = detailPlaceHolder.FindControl("DetailPanel1");

RadAjaxLoadingPanel ajaxLoadingPanel = Master.FindControl("RadAjaxLoadingPanel1") as RadAjaxLoadingPanel;

ajaxManager.AjaxSettings.AddAjaxSetting(personnelGroupsGrid, detailPanel, ajaxLoadingPanel);

//Render user control

if (IsPostBack)

{

Control c = GetRequiredPostBackControl(this);

if (c.ID == "btnEdit")

{

LoadUserControl("~/UserControls/MyGrid.ascx", detailPanel);

}

}

And the user control MyGrid.ascx:

<radG:RadGrid ID="MyGrid1" runat="server" AutoGenerateColumns="False" GridLines="Horizontal"

PageSize="4" AllowMultiRowEdit="True" AllowAutomaticDeletes="True"

Width="476px" DataSourceID="XmlDataSource1" EnableAJAX="False">

<MasterTableView CommandItemDisplay="Top" TableLayout="Fixed" DataSourceID="XmlDataSource1">

<CommandItemTemplate>

<!-- Command bar and tool tips -->

<asp:ImageButton ID="btnNew" runat="server" CausesValidation="false" ImageUrl="../Img/Add_Image.png" />

<!-- snip -->

</CommandItemTemplate>

<ExpandCollapseColumn Resizable="False" Visible="False">

<HeaderStyle Width="20px" />

</ExpandCollapseColumn>

<RowIndicatorColumn Visible="False">

<HeaderStyle Width="20px" />

</RowIndicatorColumn>

<Columns>

<radG:GridBoundColumn DataField="name" HeaderText="Name" SortExpression="name" UniqueName="name">

</radG:GridBoundColumn>

<radG:GridBoundColumn DataField="description" HeaderText="Description" SortExpression="description" UniqueName="description">

</radG:GridBoundColumn>

</Columns>

</MasterTableView>

<ClientSettings>

<ClientEvents OnRowSelected="RowSelected" />

<Selecting AllowRowSelect="True" />

</ClientSettings>

<PagerStyle Mode="NextPrevAndNumeric"></PagerStyle>

</radG:RadGrid>

[Eric]

All of that works fine.  I get the partial page postback and my detail grid is updated.  Now, I want to make the call from the client side.  So, I add the JavaScript to my page:

<telerik:RadAjaxManagerProxy ID="RadAjaxManagerProxy1" runat="server" /> <script>

function Add()

{

var args = new Object();

args["ID"] = "<%= PersonnelGroupGrid1.ClientID %>";

args["Command"] = "Edit";

var ajaxManager = window["<%= Manager.ClientID %>"].AjaxRequest(args);

}

</script>

<!-- snip -->

<asp:ImageButton ID="btnNew" OnClientClick="Add(); return false;" runat="server" CausesValidation="false" ImageUrl="../Img/Add_Image.png" />

<!-- snip -->

Edit my usercontrol:

        /// <summary>
        /// Exposes the RAD AJAX Manager to the page so the page can initiate AJAX requests
        /// </summary>
        /// <value>The manager.</value>
        public RadAjaxManager Manager
        {
            get { return RadAjaxManager.GetCurrent(Page); }
        }

        /// <summary>
        /// Handles the Load event of the Page control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
        protected void Page_Load(object sender, EventArgs e)
        {
            Manager.AjaxRequest += MyGrid_AjaxRequest;
        }

        /// <summary>
        /// Handles the AjaxRequest event of the PersonnelGroupGrid control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="Telerik.Web.UI.AjaxRequestEventArgs"/> instance containing the event data.</param>
        protected void MyGrid_AjaxRequest(object sender, AjaxRequestEventArgs e)
        {
            Control detailPlaceHolder = Page.Master.FindControl("DetailPlaceHolder");
            Control detailPanel = detailPlaceHolder.FindControl("DetailPanel1");
            LoadUserControl("~/UserControls/MyGridEdit.ascx", detailPanel);
        }

The JavaScript posts the User Control and the MyGrid_AjaxRequest method is called.  However, the partial post back no longer works.  I tried  moving the code from Default.aspx.cs#Page_Load method that wires the partial postback to the Page_Load method of the user control, but without any luck.

Thanks for the help, the other posts were very useful in getting me this far.

[Giuseppe]

Hello Eric,

When you initiate the javascript from the client-side, the initiating control is the AjaxManager itself so you would need to add the appropriate AjaxSetting (that AjaxManager updates the placeholder with the grid user control).

Hope this helps.


Greetings,
Manuel
the Telerik team

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

[Eric]

Manual,

That did the trick.  Thanks for the help.

[Eric]

One other question.  Although the above works fine when I wire it to the AJAX Manager, the performance is going to be poor so I am sure I am using it incorrectly.

The partial page postback that I get contains this:

5103|updatePanel|ctl00_ctl00_DetailPlaceHolder_DetailPanel1Panel|<div id="ctl00_DetailPlaceHolder_DetailPanel1"

 style="background-color:White;height: 95%; margin: 5px 5px 5px 5px;">

    <div id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTabStrip1" class="tabstrip RadTabStrip_WinVista

 ">

        <!-- 3.6.1 --><script type="text/javascript" src="/WebResource.axd?d=3kz3Bknfk_3o3oNLvIyNs8NufGwIn

iLcKrO7ZdELerDr_Ch0DWNw8XQUcn8j0Fzht0hwhaejw-nfD8LuvUma70SS7Y7UGTYNnTX50JiFu_MIGLxWMrCaehCz0b-n_tBL0

&amp;t=633275842540000000"></script><span id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTabStrip1StyleSheetHolder"

 style="display:none;"></span><div class="levelwrap level1">

            <ul>

                <li class="first"><a href="javascript:void(0);" id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTabStrip1_ctl00"

 class="selected"><span class="wrap"><span class="innerWrap">Edit Personnel Group</span></span></a><

/li>

                <li class="last"><a href="javascript:void(0);" id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTabStrip1_ctl01"

 disabled="disabled" class="disabled"><span class="wrap"><span class="innerWrap">Edit Wizard Page 2<

/span></span></a></li>

            </ul>

        </div><input type="hidden" id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTabStrip1_Hidden"

 name="ctl00$DetailPlaceHolder$UserControlsPersonnelGroupEdit$RadTabStrip1" /><script type="text/javascript"

>window["ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTabStrip1"] = new RadTabStrip("ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTabStrip1"

);window["ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTabStrip1"].Initialize({"MultiPageID"

:"RadMultiPage1","MultiPageClientID":"ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadMultiPage1"

,"Skin":"WinVista","Enabled":true},{"ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTabStrip1_ctl00"

:{"Selected":true},"ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTabStrip1_ctl01":{"Enabled"

:false}});</script>

    </div>

 <div id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadMultiPage1" style="border-right:

 rgb(145,155,156) 1px solid; border-top: rgb(145,155,156) 1px solid; margin-top: -1px; border-left: rgb

(145,155,156) 1px solid; border-bottom: rgb(145,155,156) 1px solid;">

        <div id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_PageView1" style="height:90%;width

:100%;height:100%;display:block;">



            <div class="nl-form" style="font-family:tahoma,sans-serif; font-size:11px;">

                 <fieldset>

                    <legend>Group Information</legend>

                    <div class="fieldgrp">

                        <label for="name">Name:</label>

                        <div class="field">

                            <div id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTextBox1_wrapper"

 class="radInput_Default" style="display:-moz-inline-stack;width:100px;height:18px;">

                <table cellpadding="0" cellspacing="0" border="0" style="table-layout:fixed;width:100px;height:18px

;">

                    <tr>

                        <td class="inputCell" style="width:100%;height:100%;"><input type="text" size="15" id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTextBox1_text"

 style="width:100%;" /><input style="visibility: hidden;position:absolute;right:0;width:0;height:0;overflow

:hidden;border:0;padding:0;margin:0;" id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTextBox1"

 name="ctl00$DetailPlaceHolder$UserControlsPersonnelGroupEdit$RadTextBox1" type="text" value="" /></td

>

                    </tr>

                </table><input id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTextBox1_ClientState"

 name="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTextBox1_ClientState" type="hidden"

 />

            </div>

                            <span style="color: red;">Name is a required field.</span>



                        </div>

                    </div>

                    <div class="fieldgrp">

                        <label for="description">Description:</label>

                        <div class="field">

                            <input type="text" name="description" />

                        </div>

                    </div>

                </fieldset>

            </div>



        </div><div id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_PageView2" style="width:100%

;height:100%;display:none;">





        </div><div>

            <input type="hidden" name="ctl00$DetailPlaceHolder$UserControlsPersonnelGroupEdit$RadMultiPage1_Selected"

 id="ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadMultiPage1_Selected" value="0" />

        </div><script type="text/javascript">

            window["ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadMultiPage1"] = new RadMultiPage

('ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadMultiPage1', [{"ID":"PageView1","ClientID"

:"ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_PageView1"},{"ID":"PageView2","ClientID":"ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_PageView2"

}]);

        </script>

    </div>

</div>|62|updatePanel|ctl00_RadAjaxManager1SU|<span id="ctl00_RadAjaxManager1" style="display:none;"

></span>|0|hiddenField|__EVENTTARGET||0|hiddenField|__EVENTARGUMENT||6432|hiddenField|__VIEWSTATE|/w

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);window["ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadTabStrip1"].Initialize({"MultiPageID"

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    window["ctl00_DetailPlaceHolder_UserControlsPersonnelGroupEdit_RadMultiPage1"] = new RadMultiPage

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}, null, null, $get("ctl00_RadAjaxManager1"));

});

|

I am not sure why the partial post back is so large, but it is 50KB.  It seems that the viewstate for the AjaxManager is included in the postback -- as well as the configuration for the AjaxManager.

I tried only wiring the AjaxSettings when the control was not posting back, but then the event only worked the first time.

Thanks again for the help.

[Giuseppe]

Hi Eric,

RadAjax Prometheus preserves the normal page life-cycle and in order to do so it needs to post all the necessary post data fields (e.g. __VIEWSTATE) on ajax request. We believe you will observe the same behavior in both cases -- when the request is triggered by the AjaxManager, and when the request is triggered by a control ajaxified by the AjaxManager. So the size of the ajax response depends on the html portion you are updating and the size of the post data fields that are transmitted back and forth.


Best wishes,
Manuel
the Telerik team

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