asp.net 问题,急!

asp.net的postback机制：__doPostBack

__doPostBack
<input type="hidden" name="__EVENTTARGET" id="__EVENTTARGET" value="" />
<input type="hidden" name="__EVENTARGUMENT" id="__EVENTARGUMENT" value="" />
function __doPostBack(eventTarget, eventArgument)
{
if (!t ......

asp.net 实现excel导入到数据库

//Excel批量导入到数据库
      protected void btnUpload_Click(object sender, EventArgs e)
      {
         string IsXls = System.IO.Path.GetExtension(UploadExcel.FileName.ToString().ToLower ......

C# Home / 详解Asp.Net Sql数据库连接字符串

1.连接数据库文件
<add name="LocalSqlServer" connectionString="Data Source=.\SQLExpress;Integrated Security=True;AttachDBFilename=|DataDirectory|TimeTracker.mdf;User Instance=true" />
SqlConnectionStringBuilder实例化时，要用到connectionString，如：SqlConnectionStringBuild builder = new SqlCon ......

ASP.NET验证码(C#)

* Copyright all(c) 2005 ZhongFeng, http://blog.csdn.net/SW515 */
public class ValidateCode : System.Web.UI.Page
{
  private void Page_Load(object sender, System.EventArgs e)
  {
   this.CreateCheckCodeImage(GenerateCheckCode());
  }
&nb ......