1 获取错误信息并到指定页面不要使用Response.Redirect,而应该使用Server.Transfer
e.g
// in global.asax
protected void Application_Error(Object sender, EventArgs e) {
if (Server.GetLastError() is HttpUnhandledException)
Server.Transfer("MyErrorPage.aspx");
//其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
}
Redirect会导致post－back的产生从而丢失了错误信息，
所以页面导向应该直接在服务器端执行，这样就可以在错误处理页面得到出错信息并进行相应的处理.
2 清空Cookie
Cookie.Expires=[DateTime];
Response.Cookies("UserName").Expires = 0
3 回车转换成Tab
<script language="javascript" for="document" event="onkeydown">
if(event.keyCode==13 && event.srcElement.type!=’button’ &&
event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’
&& event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
event.keyCode=9;
</script>
onkeydown="if(event.keyCode==13) event.keyCode=9"
4 为按钮添加对话框
Button1.Attributes.Add("onclick","return confirm(’确认?’)");
button.attributes.add("onclick","if(confirm(’are you sure...?’)){return
true;}else{return false;}")
5 读取DataGrid控件TextBox值
foreach(DataGrid dgi in yourDataGrid.Items)
{
TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
tb.Text....
}
6 字符型转换 转为字符串
12345.ToString("n"); //生成 12,345.00
12345.ToString("C"); //生成 ￥12,345.00
12345.ToString("e"); //生成 1.234500e+004
12345.ToString("f4"); //生成 12345.0000
12345.ToString("x"); //生成 3039 (16进制)
12345.ToString("p"); //生成 1,234,500.00%
1. 注册js函数
String scriptString = "<script language=JavaScript>function doClick(){";
scriptString += "for(var index=0;index<myArray.length;index++)";
scriptString += "alert(myArray[index]);}<";
scriptString += "/" + "script>";
ClientScript.RegisterStartupScript(typeof(WebForm2) ......
HTML代码：
<script language="javascript" event="onclick" for="ImageButton1">
return confirm('确定要保存变更吗？');//返回false时不执行ImageButton1_Click方法，返回ture时执行ImageButton1_Click方法
</script>
<asp:ImageButton ID="ImageButton1" runat="server" ImageAlig ......
