C# 数据打印 实例源码下载

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using DLLFullPrint;//添加打印模块的命名空间
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace TransferPrint
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        public static string M_str_sqlcon = @"Data Source=127.0.0.1;Initial Catalog=db_mrsql;User ID=sa";
        public static SqlConnection My_con;  //定义一个SqlConnection类型的公共变量My_con，用于判断数据库是否连接成功
        public string SQLstr = "select * from tb_YearD09";    //tb_YearD09,tb_distribution09
        public string SQLTable = "tb_YearD09";
        public DataSet DSet = new DataSet();

        #region  创建DataSet对象
        /// <summary>
        /// 创建一个DataSet对象
        /// </summary>
        /// <param name="M_str_sqlstr">SQL语句</param>
        /// <param name="M_str_table">表名</param>
        /// <returns>返回DataSet对象</returns>
        public DataSet getDataSet(string SQLstr, string tableName)
        {
            My_con = new SqlConnection(M_str_sqlcon);   //用SqlConnection对象与指定的数据库相连接
            My_con.Open();  //打开数据库连接
            SqlDataAdapter SQLda = new SqlDataAdapter(SQLstr, My_con);  //创建一个SqlDataAdapter对象，并获取指定数据表的信息
            DataSet My_DataSet = new DataSet(); //创建DataSet对象
            SQLda.Fill(My_DataSet, tableName);  //通过SqlDataAdapter对象的Fill()方法，将数据表信息添加到DataSet对象中
            My_con.Close();  //关闭数据库的连接
            return My_DataSet;  //返回DataSet对象的信息
        }
        #endregion

        private void Form1_Load(object sender, EventArgs e)
        {
            DSet = getDataSet(SQLstr, SQLTable);
            dataGridView1.DataSource = DSet.Tables[0];
        }

        private void button1_Click(object sender, EventArgs e)
        {
            MyDLL.TakeOver(DSet);//向打印模块中的DLL文件传递参数
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}