Asp.Net查询MSSQL数据库的一个例子

类别:Java 点击:0 评论:0 推荐:

一:使用System.Data.OleDb

<%@page language="c#" debug="true"%>
<%@Import Namespace="System.Data"%>
<%@Import Namespace="System.Data.OleDb"%>
<script language="c#" runat="server">
 public void page_load(Object o,EventArgs e)
 {
  /**定义相关变量*/
  String strConn="provider=sqloledb.1;data source=localhost;initial catalog=pubs;user id=sa;password=lzjliu202080";
  String strSQL1="SELECT * FROM authors";
  String strSQL2="SELECT * FROM jobs";
  String strSQL3="SELECT * FROM sales";
  /**建立数据库连接*/
  OleDbConnection myConn=new OleDbConnection(strConn);
  try
  {
   /**查询数据*/
   OleDbDataAdapter myAdapter1=new OleDbDataAdapter(strSQL1,myConn);
   OleDbDataAdapter myAdapter2=new OleDbDataAdapter(strSQL2,myConn);
   OleDbDataAdapter myAdapter3=new OleDbDataAdapter(strSQL3,myConn);
   /**实例化DataSet*/
   DataSet myData=new DataSet();
   /**将数据资料存入DataSet*/
   myAdapter1.Fill(myData,"authors");
   myAdapter2.Fill(myData,"jobs");
   myAdapter3.Fill(myData,"sales");
   /**设置数据来源*/
   myGrid1.DataSource=myData.Tables["authors"].DefaultView;
   myGrid2.DataSource=myData.Tables["jobs"].DefaultView;
   myGrid3.DataSource=myData.Tables["sales"].DefaultView;
   /**数据绑定*/
   myGrid1.DataBind();
   myGrid2.DataBind();
   myGrid3.DataBind();
  }
  catch(Exception ex)
  {
   Response.Write("应用程序发生意外错误!");
  }
  finally
  {
   /**资源释放*/
   //myAdapter1.Close();
   //myAdapter2.Close();
   //myAdapter3.Close();
   myConn.Close();
  }
 }
</script>
<html>
<head>
<title>Asp.Net数据查询</title>
</head>
<body>
<form runat="server">
 <asp:DataGrid id="myGrid1" runat="server"
  allowPaging="true"
  pageSize="5"
  pagerStyle-mode="NumericPages"
  borderColor="black"
  borderWidth="1"
  cellPadding="3"
  cellSpacing="0"
  GridLines="Both"
  Font-Name="Verdana"
  Font-Size="8pt"
  HeaderStyle-BackColor="#aaaadd"
  AlternatingItemStyle-BackColor="#eeeeee"/>
 <asp:DataGrid id="myGrid2" runat="server"
  allowPaging="true"
  pageSize="5"
  pagerStyle-mode="NumericPages"/>
 <asp:DataGrid id="myGrid3" runat="server"
  allowPaging="true"
  pageSize="5"
  pagerStyle-mode="NumericPages"/>
</form>
</body>
</html>

二:使用System.Data.SqlClient

<%@page language="c#" debug="true"%>
<%@Import Namespace="System.Data"%>
<%@Import Namespace="System.Data.SqlClient"%>
<script language="c#" runat="server">
 protected void page_load(Object o,EventArgs e)
 {
  /**变量定义*/
  String strConn="server=localhost;database=pubs;user=sa;password=lzjliu202080";
  String strSQL1="SELECT * FROM authors";
  String strSQL2="SELECT * FROM jobs";
  String strSQL3="SELECT * FROM sales";
  /**建立数据库连接*/
  SqlConnection DBConn=new SqlConnection(strConn);
  /**查询资料*/
  SqlDataAdapter myAdapter1=new SqlDataAdapter(strSQL1,DBConn);
  SqlDataAdapter myAdapter2=new SqlDataAdapter(strSQL2,DBConn);
  SqlDataAdapter myAdapter3=new SqlDataAdapter(strSQL3,DBConn);
  /**实例化DataSet*/
  DataSet myData=new DataSet();
  /**将资料存入DataSet*/
  myAdapter1.Fill(myData,"author");
  myAdapter2.Fill(myData,"job");
  myAdapter3.Fill(myData,"sale");
  /**设置数据源*/
  Grid1.DataSource=myData.Tables["author"].DefaultView;
  Grid2.DataSource=myData.Tables["job"].DefaultView;
  Grid3.DataSource=myData.Tables["sale"].DefaultView;
  /**数据显示*/
  Grid1.DataBind();
  Grid2.DataBind();
  Grid3.DataBind();
 }
</script>
<form name="form1" runat="server">
 <Asp:DataGrid id="Grid1" runat="server"
  font-size="12px"/>
 <Asp:DataGrid id="Grid2" runat="server"
  font-size="12px"/>
 <Asp:DataGrid id="Grid3" runat="server"
  font-size="12px"/>
</form>

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