asp.net updatePanel实现无刷新应用实例

使用VS控件updatePanel实现无刷新

点击按钮从服务器获取当前时间



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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Data.SqlClient;
using System.Data;
public partial class _Default:baseClass
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
HttpPostedFile upFile = File1.PostedFile;
int iFileLength = upFile.ContentLength;
try
{
if (iFileLength == 0)
{
MessageBox("请选择要上传的文件！");
}
else
{
Byte[] FileByteArray = new Byte[iFileLength];
Stream StreamObject = upFile.InputStream;
StreamObject.Read(FileByteArray, 0, iFileLength);
SqlConnection conn = new SqlConnection("server=.;database=Test;uid=sa;pwd=1234;");
ExecuteBySQLNonQuery("delete from imageTable");
SqlCommand cmd = new SqlCommand("insert into [imageTable] values(@image)", conn);
cmd.Parameters.Add("@Image", SqlDbType.Binary, iFileLength).Value = FileByteArray;
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
MessageBox("已经成功上传了照片!");
}
image1.ImageUrl = "displayempphoto.ashx";
}
catch (Exception ex)
{
MessageBox(ex.Message);
}
}
}