crystalreport.cs

由C开发的教务管理系统源码中的排课子系统

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;

namespace 教务管理系统
{
	/// <summary>
	/// CrystalReport 的摘要说明。
	/// </summary>
	public class CrystalReport : System.Windows.Forms.Form
	{
		public static string studentID;//用于保存报表打印窗体传递来的学号
		
		private CrystalDecisions.Windows.Forms.CrystalReportViewer crystalReportViewer1;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public CrystalReport()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			this.crystalReportViewer1 = new CrystalDecisions.Windows.Forms.CrystalReportViewer();
			this.SuspendLayout();
			// 
			// crystalReportViewer1
			// 
			this.crystalReportViewer1.ActiveViewIndex = -1;
			this.crystalReportViewer1.DisplayGroupTree = false;
			this.crystalReportViewer1.Location = new System.Drawing.Point(0, 0);
			this.crystalReportViewer1.Name = "crystalReportViewer1";
			this.crystalReportViewer1.ReportSource = null;
			this.crystalReportViewer1.Size = new System.Drawing.Size(664, 440);
			this.crystalReportViewer1.TabIndex = 0;
			// 
			// CrystalReport
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(664, 437);
			this.Controls.Add(this.crystalReportViewer1);
			this.Name = "CrystalReport";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "CrystalReport";
			this.Load += new System.EventHandler(this.CrystalReport_Load);
			this.ResumeLayout(false);

		}
		#endregion

		//----------初始化窗体时，读入报表数据，并显示之-----------
		private void CrystalReport_Load(object sender, System.EventArgs e)
		{
			//读入数据
			CrystalReport1 rpt=new CrystalReport1();			
			string strConn="workstation id=localhost;Integrated Security=SSPI;Database=eisbook;";
			SqlConnection cn=new SqlConnection(strConn);
			cn.Open();
			string sql="SELECT a.学号, c.姓名, b.课程名称, b.开课系别, b.教师, a.成绩"
				+" FROM 成绩表 a INNER JOIN 课程信息 b ON a.课程编号 = b.课程编号"
				+" INNER JOIN 学生信息 c ON a.学号 = c.学号 WHERE (a.学号 = '"+studentID+"')";
			SqlDataAdapter da=new SqlDataAdapter(sql,cn);
			DataSet ds=new DataSet();
			da.Fill(ds);
			//连接报表数据源
			rpt.SetDataSource(ds.Tables[0]);
			crystalReportViewer1.ReportSource=rpt;
		}
	}
}