javaScript自定义绑定
<script type = "text/javascript">
function pageLoad()
{
var text = new Sys.UI.TextBox($('text'));
var label = new Sys.UI.Label($('label'));
text.set_text("Hello,world!");
var binding_1 = new Sys.Binding();
binding_1.set_dataContext(text);
binding_1.set_dataPath('text');
binding_1.set_property('text');
binding_1.transform.add(customTransform);
label.get_bindings().add(binding_1);
text.initialize();
label.initialize();
}
function customTransform(sender,eventArgs)
{
var value = eventArgs.get_value();
var reverseStr = new Sys.StringBuilder();
for(var i = value.length - 1;i >= 0;i--)
{
reverseStr.append(value.charAt(i));
eventArgs.set_value(reverseStr.toString());
}
}
</script>
</head>
<body onload = "pageLoad();">
<form id="form1" runat="server">
<atlas:scriptmanager ID = "scriptmanager" runat="server"></atlas:scriptmanager>
<div>
<h3><u>Example 3:</u></h3>
<div id = "font">
This example binds the label(a span element) to the text box and <br />
demonstrates a custom transform to reverse the text from th entered<br />
value.<br />
Enter a string:<input type = "text" id = "text" runat = "server" /><br />
Reversed Text:<label id = "label" runat = "server"></label>
</div>
</div>
</form>
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