新瓶旧酒ASP.NET AJAX(5) - 客户端脚本编程（Sys.UI命名空间下的类和快捷方法）

<%@ Page Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="DomElement.aspx.cs" 
        Inherits="ClientScripting_SysUI_DomElement" Title="Sys.UI.DomElement Class" %> 

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server"> 
        <style type="text/css"> 
                .redBackgroundColor    
                {    
                        background-color:Red; 
                } 
                .blueBackgroundColor    
                {    
                        background-color:Blue; 
                } 
        </style> 
        <p> 
                <input type="button" id="Button1" value="转换CssClass" /> 
        </p> 
        <p> 
                <input type="button" id="Button2" value="移除CssClass" /> 
        </p> 
        <p> 
                <input type="button" id="Button3" value="移动Lable1" /> 
        </p> 
        <p> 
                <asp:Label ID="Label1" runat="server" BackColor="Black" ForeColor="White" Text="Label1" 
                        Width="102px"></asp:Label> 
        </p> 
        <p> 
                <asp:TextBox ID="TextBox1" runat="server" TextMode="MultiLine" Width="500px" Height="300px"></asp:TextBox> 
        </p> 

        <script type="text/javascript" language="javascript"> 
         
        /* 
        $get()相当于Sys.UI.DomElement.getElementById() 
        $addHandler()相当于Sys.UI.DomEvent.addHandler() 
        $addHandlers()相当于Sys.UI.DomEvent.addHandlers() 
        $clearHandlers()相当于Sys.UI.DomEvent.clearHandlers() 
        $removeHandler()相当于Sys.UI.DomEvent.removeHandler() 
        $create()相当于Sys.Component.create() 
        $find()相当于Sys.Application.findComponent() 
        */ 

        // 给ID为“Button1”的元素增加“click”的事件处理器，处理方法为toggleCssClassMethod 
        $addHandler($get("Button1"), "click", toggleCssClassMethod); 
        // 给ID为“Button2”的元素增加“click”的事件处理器，处理方法为blueBackgroundColor 
        $addHandler($get("Button2"), "click", removeCssClassMethod); 

        // 给ID为“Button1”的元素增加增加名为“redBackgroundColor”的CssClass 
        Sys.UI.DomElement.addCssClass($get("Button1"), "redBackgroundColor"); 
        // 给ID为“Button2”的元素增加增加名为“blueBackgroundColor”的CssClass 
        Sys.UI.DomElement.addCssClass($get("Button2"), "blueBackgroundColor"); 

        function toggleCssClassMethod(eventElement) 
        { 
                // 元素eventElement.target是否有名为“redBackgroundColor”的CssClass 
                if (Sys.UI.DomElement.containsCssClass(eventElement.target, "redBackgroundColor")) 
                { 
                        // 将eventElement.target的CssClass变为“blueBackgroundColor” 
                        Sys.UI.DomElement.toggleCssClass(eventElement.target, "blueBackgroundColor"); 
                } 
                else 
                { 
                        // 将eventElement.target的CssClass变为“redBackgroundColor” 
                        Sys.UI.DomElement.toggleCssClass(eventElement.target, "redBackgroundColor"); 
                } 
        } 
    
        function removeCssClassMethod(eventElement)    
        { 
                // 移除eventElement.target的CssClass 
                Sys.UI.DomElement.removeCssClass(eventElement.target, "blueBackgroundColor"); 
        } 

        var elementRef = $get("<%= Label1.ClientID %>"); 
         
        // 获取元素的Bounds信息 
        var elementBounds = Sys.UI.DomElement.getBounds(elementRef); 
         
        var result = ''; 
        result += "Label1的x坐标 = " + elementBounds.x + "\r\n"; 
        result += "Label1的y坐标 = " + elementBounds.y + "\r\n"; 
        result += "Label1的宽度 = " + elementBounds.width + "\r\n"; 
        result += "Label1的高度 = " + elementBounds.height + "\r\n\r\n"; 
         
        // 获取元素的位置信息 
        var elementLoc = Sys.UI.DomElement.getLocation(elementRef); 
         
        result += "Label1的坐标(x, y) = (" + elementLoc.x + "," + elementLoc.y + ")\r\n\r\n"; 

        $get("<%= TextBox1.ClientID %>").value = result; 


        function Button3_ 
        { 
                result = ""; 
                 
                // 设置元素的位置（元素，x坐标，y坐标） 
                Sys.UI.DomElement.setLocation(elementRef, 100, elementLoc.y + 100); 
                 
                elementLoc = Sys.UI.DomElement.getLocation(elementRef); 
                 
                result += "点击移动按钮后    - Label1的坐标(x, y) = (" + elementLoc.x + "," + elementLoc.y + ")\r\n"; 

                $get("<%= TextBox1.ClientID %>").value += result; 
        } 
         
        </script> 

</asp:Content>

<%@ Page Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="DomEvent.aspx.cs" 
        Inherits="ClientScripting_SysUI_DomEvent" Title="Sys.UI.DomEvent Class" %> 

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server"> 
        <p> 
                单击按钮后查看事件的详细信息 
        </p> 
        <p> 
                <input type="button" id="Button1" value="按钮(s)" accesskey="s" /> 
        </p> 
        <p> 
                <asp:Label ID="Label1" runat="server"></asp:Label> 
        </p> 
        <p> </p> 
        <p> 
                同时添加多个事件处理器 
        </p> 
        <p> 
                <input type="button" id="Button2" value="按钮2" /> 
        </p> 
        <p> 
                <asp:Label ID="Label2" runat="server"></asp:Label> 
        </p> 

        <script type="text/javascript" language="javascript"> 
         
        // 给ID为“Button1”的元素增加“click”的事件处理器，处理方法为processEventInfo 
        $addHandler($get("Button1"), "click", processEventInfo); 
         
        var ary =    
        [ 
                // 以下为DomEvent类的Field 
                'altKey', // 是否是关联的alt键触发的事件？是true；否false 
                'button', // Sys.UI.MouseButton枚举，用于指定当相关事件发生时，鼠标按键的状态 
                'charCode', // 触发了事件的键的字符代码 
                'shiftKey', // 发生事件时是否按下了Shift键 
                'clientX', // 发生事件时鼠标的x坐标 
                'clientY', // 发生事件时鼠标的y坐标 
                'ctrlKey', // 发生事件时是否按下了Ctrl键 
                'offsetX', // 发生事件时鼠标与触发事件的对象之间的x偏移量 
                'offsetY', // 发生事件时鼠标与触发事件的对象之间的y偏移量 
                'screenX', // 发生事件时鼠标与用户屏幕之间的x偏移量 
                'screenY', // 发生事件时鼠标与用户屏幕之间的y偏移量 
                'target', // 触发事件的对象 
                'type' // 被触发的事件的名称 
         ]; 

        function processEventInfo(eventElement)    
        { 
                var result = ''; 
                 
                for (var i = 0, l = ary.length; i < l; i++)    
                { 
                        var arrayVal = ary[i]; 
                         
                        if (typeof(arrayVal) !== 'undefined')    
                        { 
                                try    
                                { 
                                        // 输出结果举例：eventElement.altKey 
                                        result += arrayVal + " = " + eval("eventElement." + arrayVal) + '<br/>'; 
                                } 
                                catch (e) 
                                { 
                                        alert(e.message); 
                                } 
                        } 
                } 

                result += eventElement.target.id; 
                 
                $get("<%= Label1.ClientID %>").innerHTML = result; 
        } 
         
        </script> 
         
        <script type="text/javascript" language="javascript"> 
         
        // 给ID为“Button2”的元素增加多个事件处理器 
        Sys.UI.DomEvent.addHandlers 
        ( 
                $get("Button2"),    
                { 
                        click: processEventInfo,    
                        mouseover: processEventInfo,    
                        mouseout: processEventInfo 
                } 
        ); 

        function processEventInfo(eventElement)    
        { 
                var result = ''; 
                result += eventElement.type; 
                $get("<%= Label2.ClientID %>").innerHTML = result; 
        } 
         
        </script> 

</asp:Content>

<%@ Page Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="Others.aspx.cs" 
        Inherits="ClientScripting_SysUI_Others" Title="Sys.UI Other Class" %> 

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server"> 
        <fieldset> 
                <legend>title</legend> 
                <div id="parentDiv"> 
                        <div id="childDiv"> 
                                aabbcc 
                        </div> 
                </div> 
                <div> 
                        <input type="button" id="btnHide" value="VisibilityMode.hide" /> 
                          
                        <input type="button" id="btnCollapse" value="VisibilityMode.collapse" /> 
                </div> 
        </fieldset> 

        <script type="text/javascript" language="javascript"> 
                         
                // 让元素“childDiv”变为Control 
                var a = new Sys.UI.Control($get('childDiv')); 
                // 让元素“parentDiv”变为Control 
                var b = new Sys.UI.Control($get('parentDiv')); 

                // 先取得a的父控件，然后再取得这个父控件的id 
                alert(a.get_parent().get_id()); 
                // 让控件“a”变为元素，然后取得这个元素的id 
                alert(a.get_element().id); 

                function btnHide_ 
                { 
                        // 隐藏控件a 
                        a.set_visible(false); 
                        // 隐藏方式为hide，占用页面空间 
                        a.set_visibilityMode(Sys.UI.VisibilityMode.hide); 
                } 
                 
                function btnCollapse_ 
                { 
                        // 隐藏控件a 
                        a.set_visible(false); 
                        // 隐藏方式为collapse，不占用页面空间 
                        a.set_visibilityMode(Sys.UI.VisibilityMode.collapse); 
                } 
                 
        </script> 

</asp:Content>