结合MS AJAX将js文件编译到动态链接库
为了使javascript代码不被窃取,我们可以将js文件编译成动态链接库(dll)文件。下面为了演示这一功能,创建了一个控件。
程序代码:SampleControlsCS.rar
一、创建一个类库项目,命名为UpdateAnimate。
二、向项目中添加引用System.Web, System.Drawing, System.Web.Extensions
三、向项目中添加一个Jscript的文件UpdatePanelAnimation.js
四、向文件中添加如下代码:
BorderAnimation = function(color)
{
this._color = color;
}
BorderAnimation.prototype =
{
animate: function(panelElement)
{
var s = panelElement.style;
s.borderWidth = '2px';
s.borderColor = this._color;
s.borderStyle = 'solid';
window.setTimeout(
function()
{
{
s.borderWidth = 0;
}
},
500);
}
}
这段代码中,包含一段临时改变UpdatePanel控件样式的方法
五、解决方案资源管理器中,右键查看UpdatePanelAnimation.js的属性,把高级中的“生成操作”属性设置成“嵌入的资源”。
六、向项目中添加一个类CustomControl
七、替换类中的代码:
using System;
using System.Drawing;
using System.Web.UI;
using System.Web;
using System.Globalization;
namespace UpdateAnimate
{
public class UpdatePanelAnimationWithClientResource : Control
{
private string _updatePanelID;
private Color _borderColor;
private Boolean _animate;
public Color BorderColor
{
get
{
return _borderColor;
}
set
{
_borderColor = value;
}
}
public string UpdatePanelID
{
get
{
return _updatePanelID;
}
set
{
_updatePanelID = value;
}
}
public Boolean Animate
{
get
{
return _animate;
}
set
{
_animate = value;
}
}
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
if (Animate)
{
UpdatePanel updatePanel = (UpdatePanel)FindControl(UpdatePanelID);
string script = String.Format(
CultureInfo.InvariantCulture,
@"
Sys.Application.add_load(function(sender, args) {{
var {0}_borderAnimation = new BorderAnimation('{1}');
var panelElement = document.getElementById('{0}');
if (args.get_isPartialLoad()) {{
{0}_borderAnimation.animate(panelElement);
}}
}})
",
updatePanel.ClientID,
ColorTranslator.ToHtml(BorderColor));
ScriptManager.RegisterStartupScript(
this,
typeof(UpdatePanelAnimationWithClientResource),
ClientID,
script,
true);
}
}
}
}
using System.Drawing;
using System.Web.UI;
using System.Web;
using System.Globalization;
namespace UpdateAnimate
{
public class UpdatePanelAnimationWithClientResource : Control
{
private string _updatePanelID;
private Color _borderColor;
private Boolean _animate;
public Color BorderColor
{
get
{
return _borderColor;
}
set
{
_borderColor = value;
}
}
public string UpdatePanelID
{
get
{
return _updatePanelID;
}
set
{
_updatePanelID = value;
}
}
public Boolean Animate
{
get
{
return _animate;
}
set
{
_animate = value;
}
}
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
if (Animate)
{
UpdatePanel updatePanel = (UpdatePanel)FindControl(UpdatePanelID);
string script = String.Format(
CultureInfo.InvariantCulture,
@"
Sys.Application.add_load(function(sender, args) {{
var {0}_borderAnimation = new BorderAnimation('{1}');
var panelElement = document.getElementById('{0}');
if (args.get_isPartialLoad()) {{
{0}_borderAnimation.animate(panelElement);
}}
}})
",
updatePanel.ClientID,
ColorTranslator.ToHtml(BorderColor));
ScriptManager.RegisterStartupScript(
this,
typeof(UpdatePanelAnimationWithClientResource),
ClientID,
script,
true);
}
}
}
}
八、向AssemblyInfo.cs文件中添加如下行:
[assembly: System.Web.UI.WebResource("UpdateAnimate.UpdatePanelAnimation.js", "application/x-javascript")]
九、生成项目。
控件演示:
一、创建一个AJAX-enabled类型的网站项目。
二、向网站跟目录下添加bin目录。
三、从控件项目的bin\Debug或 bin\Release目录拷贝UpdateAnimate.dll到网站bin目录里。
四、替换Default.aspx的内容并运行程序:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register TagPrefix="Samples" Namespace="UpdateAnimate" Assembly="UpdateAnimate" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>ScriptReference</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1"
EnablePartialRendering="True"
runat="server">
<Scripts>
<asp:ScriptReference Assembly="UpdateAnimate" Name="UpdateAnimate.UpdatePanelAnimation.js" />
</Scripts>
</asp:ScriptManager>
<Samples:UpdatePanelAnimationWithClientResource
ID="UpdatePanelAnimator1"
BorderColor="Green"
Animate="true"
UpdatePanelID="UpdatePanel1"
runat="server" >
</Samples:UpdatePanelAnimationWithClientResource>
<asp:UpdatePanel ID="UpdatePanel1"
UpdateMode="Conditional"
runat="server">
<ContentTemplate>
<asp:Calendar ID="Calendar2"
runat="server">
</asp:Calendar>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
<%@ Register TagPrefix="Samples" Namespace="UpdateAnimate" Assembly="UpdateAnimate" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>ScriptReference</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1"
EnablePartialRendering="True"
runat="server">
<Scripts>
<asp:ScriptReference Assembly="UpdateAnimate" Name="UpdateAnimate.UpdatePanelAnimation.js" />
</Scripts>
</asp:ScriptManager>
<Samples:UpdatePanelAnimationWithClientResource
ID="UpdatePanelAnimator1"
BorderColor="Green"
Animate="true"
UpdatePanelID="UpdatePanel1"
runat="server" >
</Samples:UpdatePanelAnimationWithClientResource>
<asp:UpdatePanel ID="UpdatePanel1"
UpdateMode="Conditional"
runat="server">
<ContentTemplate>
<asp:Calendar ID="Calendar2"
runat="server">
</asp:Calendar>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>