ASPxClientParseDateEventArgs.handled Property
Gets or sets a value specifying whether the event was handled.
Declaration
handled: booleanProperty Value
| Type | Description |
|---|---|
| boolean | true if the event was handled and default processing should not occur; false if the event should be handled using default processing. |
Remarks
When handling an event the handled property should be set to true in the event’s handler to indicate that default processing is not required.
Example
This example demonstrates how the ParseDate event can be handled to resolve user input strings entered into the ASPxDateEdit.
After you type a predefined date constant (such as "today") or a simple expression (such as "today + 2") and press ENTER, the relevant date is automatically calculated and set to the editor.
Note
A complete sample project is available at https://github.com/DevExpress-Examples/how-to-parse-smart-date-expressions-inputted-into-aspxdateedit-e935
<script type="text/javascript" language="javascript">
function SmartParseDate(value){
var dayDeltas = {
"TODAY": 0,
"TOMMOROW": 1,
"YESTERDAY": -1,
"NOW": 0
};
var ret = null;
if(_aspxIsExists(value)){
var text = value.replace(/ /g,"");
text = text.toUpperCase();
for(var day in dayDeltas){
if(text.substr(0,day.length) == day){
text = text.substr(day.length);
var dayCount = parseInt(text);
if(isNaN(dayCount))
dayCount = 0;
var dateResult = new Date();
if(day != "NOW")
dateResult.setHours(0,0,0,0);
dateResult.setDate(dateResult.getDate() + dayCount + dayDeltas[day])
if(!isNaN(dateResult))
ret = dateResult;
}
}
}
return ret;
}
function OnParseDate(editor, args){
var date = SmartParseDate(args.value);
if (date != null) {
args.date = date;
args.handled = true;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<dxe:ASPxLabel ID="ASPxLabel1" runat="server" AssociatedControlID="ASPxDateEdit1"
Text="Type a specific predefined word or expression (such as 'today + 1') within the date editor and press ENTER.">
</dxe:ASPxLabel><dxe:aspxdateedit id="ASPxDateEdit1" runat="server" EditFormat="DateTime">
<ClientSideEvents ParseDate="function (s, e){
OnParseDate(s, e);
} ">
</ClientSideEvents>
</dxe:aspxdateedit>