allusers.cs

来自「csharp课本的源代码」· CS 代码 · 共 49 行

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

/// <summary>
/// allusers 的摘要说明
/// </summary>
public class allusers
{
	public allusers()
	{
		//
		// TODO: 在此处添加构造函数逻辑
		//
	}
    public static void AddUserCounter(string fieldName)
    //功能：指定字段（对应网页)的浏览人数+1
    {
        SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["webdevelopConnectionString"].ConnectionString);
        conn.Open();
        SqlCommand command = new SqlCommand("update usercount set " + fieldName + "=" + fieldName + "+1", conn);
        command.ExecuteNonQuery();
        conn.Close();
    }
    public static int GetRecordNumber(string tableName)
    {
        int recordNumber = 0;
        SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["webdevelopConnectionString"].ConnectionString);
        SqlCommand command = new SqlCommand("select count(*) as recordnum from " + tableName, conn);
        SqlDataReader rd = null;
        conn.Open();
        rd = command.ExecuteReader();
        if (rd.Read())
        {
            recordNumber = Convert.ToInt32(rd["recordnum"]);
        }
        rd.Close();
        conn.Close();
        return recordNumber;
    }
}