SqlHelper.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Threading.Tasks;
using System.Configuration;
//www.51aspx.com
namespace 代码生成器
{
    public class SqlHelper
    {
        //连接数据库的字符串
        public static readonly string conStr = ConfigurationManager.ConnectionStrings["conStr"].ConnectionString;

        public static int ExecuteNonQuerry(string cmdText, params SqlParameter[]
              paras)
        {
            using(SqlConnection conn = new SqlConnection(conStr))
            {
                conn.Open();
                using(SqlCommand cmd = conn.CreateCommand())
                {
                    cmd.CommandText = cmdText;
                    cmd.Parameters.AddRange(paras);
                    return cmd.ExecuteNonQuery();
                }
            }
        }

        public static object  ExecuteScaular(string cmdText, params SqlParameter[]
      paras)
        {
            using (SqlConnection conn = new SqlConnection(conStr))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    cmd.CommandText = cmdText;
                    cmd.Parameters.AddRange(paras);
                    return cmd.ExecuteScalar();
                }
            }
        }
        public static DataTable  ExecuteDataTable(string cmdText, params SqlParameter[]
paras)
        {
            using (SqlConnection conn = new SqlConnection(conStr))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    cmd.CommandText = cmdText;
                    cmd.Parameters.AddRange(paras);
                    SqlDataAdapter adapter = new SqlDataAdapter(cmd);
                    DataTable dt = new DataTable();
                    adapter.Fill(dt);
                    return dt;
                }