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

RadWindow and RegisterStartupScript causing multiple windows to open at once

2 Answers 201 Views

Window

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

Simone asked on 17 Feb 2012, 04:30 PM

Hello,
I am posting a simplified version of my code to demonstrate the problem I am having.
If I click on a menu item, one window opens.
Then, if I click on another menu item, TWO window open. Following clicks cause two windows to open.
I only want one window to open at a time.
If I remove ajax, it works fine.

It seems like Sys.Application.add_load(OpenWindow1) is not being rendered on the page. Not sure why.

Please help.

Thanks,
Simone

cs:

protected void Page_Load(object sender, EventArgs e)

{

}

protected void subMenu_ItemClick(object sender, RadMenuEventArgs e)

{

switch (e.Item.Value)

{

case "Window1":

{

if (!ClientScript.IsStartupScriptRegistered("OpenStartupWindow1"))

ScriptManager.RegisterStartupScript(this, this.GetType(), "OpenStartupWindow1", "Sys.Application.add_load(OpenWindow1);", true);

}

break;

case "Window2":

{

if (!ClientScript.IsStartupScriptRegistered("OpenStartupWindow2"))

ScriptManager.RegisterStartupScript(this, this.GetType(), "OpenStartupWindow2", "Sys.Application.add_load(OpenWindow2);", true);

}

break;

}

aspx:

<body>

<div id="div1" runat="server">

<script type="text/javascript">

function OpenWindow1() {

var oWnd = radopen("WebForm1.aspx", "wndWebForm1");

}

function OpenWindow2() {

var oWnd = radopen("WebForm2.aspx", "wndWebForm2");

}

</script>

</div>

<form id="form1" runat="server">

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

</telerik:RadScriptManager>

<telerik:RadWindowManager ID="RadWindowManagerEmails" ShowContentDuringLoad="false"

VisibleStatusbar="false" runat="server" EnableShadow="true">

<Windows>

<telerik:RadWindow ID="wndWebForm1" runat="server" Behaviors="Close,Move,Resize"

Width="1100" Height="600" NavigateUrl="WebForm1.aspx">

</telerik:RadWindow>

<telerik:RadWindow ID="wndWebForm2" runat="server" Behaviors="Close,Move,Resize"

Width="600" Height="600"

NavigateUrl="WebForm2.aspx">

</telerik:RadWindow>

</Windows>

</telerik:RadWindowManager>

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

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="subMenu">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="txt1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<div style="display: block; width: 100%; height: 30px;">

<telerik:RadMenu ID="subMenu" runat="server" EnableViewState="false" Orientation="Horizontal"

SkipLinkText="" CausesValidation="true" OnItemClick="subMenu_ItemClick">

<Items>

<telerik:RadMenuItem Text="Open Window 1" Value="Window1" />

<telerik:RadMenuItem Text="Open Window 2" Value="Window2" />

</Items>

</telerik:RadMenu>

</div>

<telerik:RadTextBox ID="txt1" runat="server" Width="400px">

</telerik:RadTextBox>

</form>

</body>

2 Answers, 1 is accepted

answered on 17 Feb 2012, 05:01 PM

Hi Simone,

The problem comes from the fact that you attach the load handler every time but you never remove it. Would you pease test with the following modification:

<script type="text/javascript">

function OpenWindow1() {

Sys.Application.remove_load(OpenWindow1);

var oWnd = radopen("WebForm1.aspx", "wndWebForm1");

}

function OpenWindow2() {

Sys.Application.remove_load(OpenWindow2);

var oWnd = radopen("WebForm2.aspx", "wndWebForm2");

}

</script>

All the best,
Svetlina Anati
the Telerik team

Sharpen your .NET Ninja skills! Attend Q1 webinar week and get a chance to win a license! Book your seat now >>