c#获取所有局域网IP

 

using  System; 
using  System.Collections; 
using  System.ComponentModel; 
using  System.Data; 
using  System.Drawing; 
using  System.Web; 
using  System.Web.SessionState; 
using  System.Web.UI; 
using  System.Web.UI.WebControls; 
using  System.Web.UI.HtmlControls; 
using  System.Data.OleDb; 
using  System.Configuration; 

namespace  ETable 

///  
/// ETable 的摘要说明。 
/// 
 

public class ETable : System.Web.UI.Page 

protected System.Web.UI.HtmlControls.HtmlInputFile File1; 
protected System.Web.UI.WebControls.Label Label1; 
protected System.Web.UI.WebControls.Button Button1; 
protected System.Web.UI.WebControls.DataGrid DataGrid1; 
public Random rd; 

private void Page_Load(object sender, System.EventArgs e) 

// 在此处放置用户代码以初始化页面 
}
 

Web 窗体设计器生成的代码 

private void Button1_Click(object sender, System.EventArgs e) 

if (File1.PostedFile!=null
{ rd=new Random(1); 
string filename=DateTime.Now.Date.ToString("yyyymmdd")+DateTime.Now.ToLongTimeString().Replace(":","")+rd.Next(9999).ToString()+".xls"
File1.PostedFile.SaveAs(@Server.MapPath(
"file/")+filename); 
//Response.Write(File1.PostedFile.FileName.ToString()); 
//Response.Write("上传成功"); 
Label1.Text="文件名为"+filename; 
string conn = " Provider = Microsoft.Jet.OLEDB.4.0 ; Data Source ="+Server.MapPath("file")+"/"+filename+";Extended Properties=Excel 8.0" ; 
OleDbConnection thisconnection
=new OleDbConnection(conn); 
thisconnection.Open(); 
string Sql="select * from [Sheet1$]"
OleDbDataAdapter mycommand
=new OleDbDataAdapter(Sql,thisconnection); 
DataSet ds
=new DataSet(); 
mycommand.Fill(ds,
"[Sheet1$]"); 
thisconnection.Close(); 
DataGrid1.DataSource
=ds; 
DataGrid1.DataBind(); 




string conn1="User ID=sa;Data Source=127.0.0.1;Password=sa;Initial Catalog=index;Provider=SQLOLEDB.1;"
OleDbConnection thisconnection1
=new OleDbConnection(conn1); 
thisconnection1.Open(); 
int count=ds.Tables["[Sheet1$]"].Rows.Count; 

for (int i=0;i<count;i++

string id,id_1,id_2,id_3; 
id
=ds.Tables["[Sheet1$]"].Rows[i]["id"].ToString(); 
id_1
=ds.Tables["[Sheet1$]"].Rows[i]["id_1"].ToString(); 
id_2
=ds.Tables["[Sheet1$]"].Rows[i]["id_2"].ToString(); 
id_3
=ds.Tables["[Sheet1$]"].Rows[i]["id_3"].ToString(); 
string excelsql="insert into excel(id,id_1,id_2,id_3) values ('"+id+"','"+id_1+"','"+id_2+"','"+id_3+"') "
OleDbCommand mycommand1
=new OleDbCommand(excelsql,thisconnection1); 
mycommand1.ExecuteNonQuery(); 
}
 
Response.Write(
"更新成功"); 
thisconnection1.Close(); 

}
 
}
 
}
 
}

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