易截截图软件、单文件、免安装、纯绿色、仅160KB

javascript跨浏览器创建XML对象


var
 
xmlDoc
 
=
 
null
;
function
 
parseXML
(
xmlUrl
)
{
  try
 
{
    //IE
    xmlDoc
 
=
 
new
 
ActiveXObject
(
"Microsoft.XMLDOM"
);
    xmlDoc
.
async
 
=
 
false
;
    xmlDoc
.
load
(
xmlUrl
);
  }
catch
(
e
)
  {
    try
{
    //
Firefox

Mozilla

Opera

etc
.
    xmlDoc
 
=
 
document
.
implementation
.
createDocument
(
""
,
""
,
null
);
    xmlDoc
.
async
 
=
 
false
;
    xmlDoc
.
load
(
xmlUrl
);
    }
catch
(
e
)
    {
      try
{
        //
google
,
Safari
       
var
 
xmlhttp
 
=
 
new
 
window
.
XMLHttpRequest
();
        xmlhttp
.
open
(
"GET"
,
xmlUrl
,
false
);
        xmlhttp
.
send
(
null
);
        xmlDoc
 
=
 
xmlhttp
.
responseXML
.
documentElement
;
      }
catch
(
e
){
alert
(
e
.
message
+
"  EROR"
);
return
;}
    }
  }
}


相关文档:

[翻译]High Performance JavaScript(006)

Identifier Resolution Performance  标识符识别性能
    Identifier resolution isn't free, as in fact no computer operation really is without some sort of performance overhead. The deeper into the execution context's scope chain an identifier exists, the slower it is to access for ......

IsolatedStorageFile 本地数据缓存 xml dataset 读写

IsolatedStorageFile:包含文件和数据的独立存储区
dataset数据存储到本地xml文档,代码处理如下
public static void WriteDataToXML(DataSet dataset, string dataname)
{
try
{
IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForAssembly(); / ......

ASP.NET中前台javascript与后台代码调用

C#代码与javaScript函数的相互调用
问:
1.如何在JavaScript访问C#函数?
2.如何在JavaScript访问C#变量?
3.如何在C#中访问JavaScript的已有变量?
4.如何在C#中访问JavaScript函数?
问题1答案如下:
javaScript函数中执行C#代码中的函数:
方法一:1、首先建立一个按钮,在后台将调用或处理的内容写入button_click中 ......
© 2009 ej38.com All Rights Reserved. 关于E健网联系我们 | 站点地图 | 赣ICP备09004571号