[Ext.Net]Class Ext.KeyMap

Class Ext.KeyMap

Package:	Ext
Class:	KeyMap
Extends:	Object
Defined In:	KeyMap.js

Handles mapping keys to actions for an element. One key map can be used for multiple actions. The constructor accepts the same config object as defined by addBinding. If you bind a callback function to a KeyMap, anytime the KeyMap handles an expected key combination it will call the function with this signature (if the match is a multi-key combination the callback will still be called only once): (String key, Ext.EventObject e) A KeyMap can also handle a string representation of keys.
Usage:

// map one key by key code
 var map = new Ext.KeyMap("my-element", {
     key: 13, // or Ext.EventObject.ENTER
     fn: myHandler,
     scope: myObject
 });
 
 // map multiple keys to one action by string
 var map = new Ext.KeyMap("my-element", {
     key: "a\r\n\t",
     fn: myHandler,
     scope: myObject
 });
 
 // map multiple keys to multiple actions by strings and array of codes
 var map = new Ext.KeyMap("my-element", [
    {
        key: [10,13],
        fn: function(){ alert("Return was pressed"); }
    }, {
        key: "abc",
        fn: function(){ alert('a, b or c was pressed'); }
    }, {
        key: "\t",
        ctrl:true,
        shift:true,
        fn: function(){ alert('Control + shift + tab was pressed.'); }
    }
]);

Note: A KepMap starts enabled

官方DEMO

http://examples1.ext.net/#/Keys/KeyMap/BorderLayout_Regions_Toggle/

http://examples1.ext.net/#/Keys/KeyNav/Basic/

http://examples1.ext.net/#/Keys/Panel_Keys/Grid_Rows_Delete/

我们来试试文本框回车和鼠标移开。

    <script>
        function KeyUp(field, e) {
            if (e.getKey() == Ext.EventObject.ENTER)
                alert("回车键已被按下");

        }
        var  Move=function(){
                alert("鼠标已被移开");
        }
    </script>

        <ext:TextField ID="txtKeyWord" Width="200" runat="server" FieldLabel="回车键">
            <Listeners>
                <SpecialKey Fn="KeyUp" />
            </Listeners>
        </ext:TextField>
        <ext:TextField ID="TextField1" Width="200" runat="server" FieldLabel="鼠标移开">
            <Listeners>
                <Blur Fn="Move" />
            </Listeners>
        </ext:TextField>

测试结果成功: