GridView中实现并列排名的例子-0编程日记

Access数据库版本

<%@ Page Language=”C#” AutoEventWireup=”true” Debug=”true” %>
<%@ Import Namespace=”System.Data” %>
<script runat=”server”>
public int TrapezoidIndex = 1;
int LastNumer = 0;
protected void Page_Load( object sender, EventArgs e )
{
//ASPNET20Book.mdb数据库参见《ASP.NET 2.0应用开发技术》一书的光盘
string ConnectionString = @”Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\\ASPNET20Book.mdb;Persist Security Info=True”;
System.Data.OleDb.OleDbConnection cn = new System.Data.OleDb.OleDbConnection(ConnectionString);
cn.Open();
string sql = “select * from [Score] Order BY Shuxue DESC”;
System.Data.OleDb.OleDbCommand cmd = new System.Data.OleDb.OleDbCommand(sql, cn);
System.Data.OleDb.OleDbDataReader dr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
GridView1.DataSource = dr;
GridView1.DataBind();
dr.Close();
cmd.Dispose();
cn.Dispose();
}

protected void GridView1_RowCreated( object sender, GridViewRowEventArgs e )
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
System.Data.Common.DbDataRecord db = (System.Data.Common.DbDataRecord)e.Row.DataItem;
int Shuxue = Int32.Parse(db["Shuxue"].ToString());
if (e.Row.RowIndex == 0)
{
LastNumer = Shuxue;
}
if (LastNumer != Shuxue)
{
TrapezoidIndex = e.Row.RowIndex + 1;
}
LastNumer = Shuxue;
}
}
</script>

<%@ Page Language=”C#” AutoEventWireup=”true”%>
<script runat=”server”>
public int TrapezoidIndex = 1;
int LastNumer = 0;
protected void Page_Load( object sender, EventArgs e )
{
string ConnectionString = “Persist Security Info=False;User ID=sa;Password=;Initial Catalog=Book;Server=.;”;
System.Data.SqlClient.SqlConnection cn = new System.Data.SqlClient.SqlConnection(ConnectionString);
cn.Open();
string sql = “select *,(Yuwen + Shuxue + Yingyu) As TotalScore from [Score] Order BY TotalScore DESC”;
System.Data.SqlClient.SqlCommand cmd = new System.Data.SqlClient.SqlCommand(sql, cn);
System.Data.SqlClient.SqlDataReader dr = cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
GridView1.DataSource = dr;
GridView1.DataBind();
dr.Close();
cmd.Dispose();
cn.Dispose();
}

protected void GridView1_RowCreated( object sender, GridViewRowEventArgs e )
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
System.Data.Common.DbDataRecord db = (System.Data.Common.DbDataRecord)e.Row.DataItem;
int TotalScore = Int32.Parse(db["TotalScore"].ToString());
if (e.Row.RowIndex == 0)
{
LastNumer = TotalScore;
}
if (LastNumer != TotalScore)
{
TrapezoidIndex = e.Row.RowIndex + 1;
}
LastNumer = TotalScore;
}
}
</script>

<html xmlns=”http://www.w3.org/1999/xhtml”>
<head id=”Head1″ runat=”server”>
<title>GridView并列排名的例子</title>
</head>
<body>
<form id=”form1″ runat=”server”>
<asp:GridView ID=”GridView1″ runat=”server” AutoGenerateColumns=”false” OnRowCreated=”GridView1_RowCreated”
Width=”600px”>
<Columns>
<asp:TemplateField HeaderText=”数据序号”>
<ItemTemplate>
<%#Container.DataItemIndex + 1%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText=”学生姓名”>
<ItemTemplate>
<%#Eval(“UserName”)%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText=”语文”>
<ItemTemplate>
<%#Eval(“Yuwen”)%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText=”数学”>
<ItemTemplate>
<%#Eval(“Shuxue”)%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText=”英语”>
<ItemTemplate>
<%#Eval(“Yingyu”)%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText=”总分”>
<ItemStyle Font-Bold=”true” ForeColor=”red” />
<ItemTemplate>
<%#Eval(“TotalScore”)%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText=”排名”>
<ItemTemplate>
<%#TrapezoidIndex%>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</form>
</body>
</html>

来源:孟宪会之精彩世界