<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Default" %>
<head runat="server">
<title></title>
<telerik:RadStyleSheetManager ID="RadStyleSheetManager1" runat="server" />
</head>
<body>
<form id="form1" runat="server">
<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
<Scripts>
<%--Needed for JavaScript IntelliSense in VS2010--%>
<%--For VS2008 replace RadScriptManager with ScriptManager--%>
<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />
<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />
<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />
</Scripts>
</telerik:RadScriptManager>
<script type="text/javascript">
// Default to False
isDirty = false;
ignoreChanges = false;
inputType = null;
inputId = null;
postBackOverride = false;
enableDebugging = false;
skipOne = false;
wasDirty = false;
function bindInputEvents() {
$(':input').keyup(function (event) {
oninputType = $(this).attr('type');
inputId = $(this).attr('id')
if (inputType != "hidden") {
debugAlert(inputType + " input changed. Id=" + inputId + " IsDirty=" + isDirty + " ignoreChanges=" + ignoreChanges);
makeDirty();
}
debugAlert(inputType + " Input Updated. Id=" + inputId);
});
}
// Bind change
$(document).ready(function () {
bindInputEvents()
// Show prompt when trying to nvaigate away if there are changes
window.onbeforeunload = function () {
if (!skipOne) {
if (isDirty) {
return 'You have unsaved changes. You will lose your changes if you leave the page.';
}
}
else {
isDirty = wasDirty;
skipOne = false;
}
};
});
function makeDirty() {
isDirty = true;
debugAlert("MakeDirty called. isDirty=" + isDirty);
}
function debugAlert(msg) {
if (enableDebugging == false) {
return true
} else {
alert(msg);
}
}
</script>
<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" />
<telerik:RadSkinManager ID="RadSkinManager1" runat="server" Skin="Windows7" />
<h3>
First, enter some text below to cause the page to get "Dirty"</h3>
<div>
Enter Text to cause Dirty:
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox></div>
<br />
<h3>
Now that the page is dirty, click on the button below to be prompted to "Save"</h3>
<div>
<asp:Button runat="server" Text="Click Me when Dirty"
onclick="Unnamed1_Click" />
</div>
<br />
<h3>
Notice how you were prompted and when you click either "Cancel" or the "X", no error
is generated.</h3>
<h3>
Now, click anywhere in the tree. The tree has an OnClick event that will attempt
to navigate to Yahoo.com</h3>
<div>
<telerik:RadTreeView ID="RadTreeView2" runat="server" Width="300px" Height="250px"
OnNodeClick="RadTreeView2_NodeClick">
<DataBindings>
<telerik:RadTreeNodeBinding Expanded="True" />
</DataBindings>
</telerik:RadTreeView>
</div>
<h3>Notice how you were prompted and when you click either "Cancel" or the "X", an error
is generated.</h3>
</form>
</body>
</html>