frmupdateclass.cs

三层体系结构的应用-学员管理系统 一个学校需要一个学生管理系统。分以下功能: 管理班档案 管理学生档案 学校开了多门课程

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

namespace Student
{
	using Aptech.Student.DataAccess;
	using Aptech.Student.Business;

	/// <summary>
	/// frmUpdateClass 的摘要说明。
	/// </summary>
	public class frmUpdateClass : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button btnClose;
		private System.Windows.Forms.Button btnSubmit;
		private System.Windows.Forms.GroupBox groupBox1;
		private System.Windows.Forms.TextBox txtRemark;
		private System.Windows.Forms.DateTimePicker txtEntranceDate;
		private System.Windows.Forms.TextBox txtClassName;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label1;
		private System.ComponentModel.IContainer components;
		private System.Windows.Forms.Button btnDelete;
		private System.Windows.Forms.ImageList imageList1;
		private System.Windows.Forms.ListView lstCourse;
		private int	m_iClassId;

		public frmUpdateClass()
		{
			//
			// 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
			//
		}

		public frmUpdateClass(
			int iClassId)
		{
			m_iClassId = iClassId;

			InitializeComponent();

		}

		/// <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.components = new System.ComponentModel.Container();
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(frmUpdateClass));
			this.btnClose = new System.Windows.Forms.Button();
			this.btnSubmit = new System.Windows.Forms.Button();
			this.groupBox1 = new System.Windows.Forms.GroupBox();
			this.lstCourse = new System.Windows.Forms.ListView();
			this.imageList1 = new System.Windows.Forms.ImageList(this.components);
			this.txtRemark = new System.Windows.Forms.TextBox();
			this.txtEntranceDate = new System.Windows.Forms.DateTimePicker();
			this.txtClassName = new System.Windows.Forms.TextBox();
			this.label3 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.label1 = new System.Windows.Forms.Label();
			this.btnDelete = new System.Windows.Forms.Button();
			this.groupBox1.SuspendLayout();
			this.SuspendLayout();
			// 
			// btnClose
			// 
			this.btnClose.Location = new System.Drawing.Point(320, 296);
			this.btnClose.Name = "btnClose";
			this.btnClose.Size = new System.Drawing.Size(75, 22);
			this.btnClose.TabIndex = 5;
			this.btnClose.Text = "关闭";
			this.btnClose.Click += new System.EventHandler(this.btnClose_Click);
			// 
			// btnSubmit
			// 
			this.btnSubmit.Location = new System.Drawing.Point(152, 296);
			this.btnSubmit.Name = "btnSubmit";
			this.btnSubmit.Size = new System.Drawing.Size(75, 22);
			this.btnSubmit.TabIndex = 4;
			this.btnSubmit.Text = "更改";
			this.btnSubmit.Click += new System.EventHandler(this.btnSubmit_Click);
			// 
			// groupBox1
			// 
			this.groupBox1.Controls.Add(this.lstCourse);
			this.groupBox1.Controls.Add(this.txtRemark);
			this.groupBox1.Controls.Add(this.txtEntranceDate);
			this.groupBox1.Controls.Add(this.txtClassName);
			this.groupBox1.Controls.Add(this.label3);
			this.groupBox1.Controls.Add(this.label2);
			this.groupBox1.Controls.Add(this.label1);
			this.groupBox1.Location = new System.Drawing.Point(-8, -8);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(488, 296);
			this.groupBox1.TabIndex = 3;
			this.groupBox1.TabStop = false;
			this.groupBox1.Enter += new System.EventHandler(this.groupBox1_Enter);
			// 
			// lstCourse
			// 
			this.lstCourse.BackColor = System.Drawing.SystemColors.HighlightText;
			this.lstCourse.CheckBoxes = true;
			this.lstCourse.GridLines = true;
			this.lstCourse.LargeImageList = this.imageList1;
			this.lstCourse.Location = new System.Drawing.Point(120, 176);
			this.lstCourse.Name = "lstCourse";
			this.lstCourse.Size = new System.Drawing.Size(320, 97);
			this.lstCourse.SmallImageList = this.imageList1;
			this.lstCourse.TabIndex = 6;
			this.lstCourse.View = System.Windows.Forms.View.List;
			// 
			// imageList1
			// 
			this.imageList1.ColorDepth = System.Windows.Forms.ColorDepth.Depth24Bit;
			this.imageList1.ImageSize = new System.Drawing.Size(16, 16);
			this.imageList1.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imageList1.ImageStream")));
			this.imageList1.TransparentColor = System.Drawing.Color.Transparent;
			// 
			// txtRemark
			// 
			this.txtRemark.Location = new System.Drawing.Point(120, 80);
			this.txtRemark.Multiline = true;
			this.txtRemark.Name = "txtRemark";
			this.txtRemark.Size = new System.Drawing.Size(320, 84);
			this.txtRemark.TabIndex = 5;
			this.txtRemark.Text = "";
			// 
			// txtEntranceDate
			// 
			this.txtEntranceDate.Location = new System.Drawing.Point(120, 48);
			this.txtEntranceDate.Name = "txtEntranceDate";
			this.txtEntranceDate.Size = new System.Drawing.Size(160, 21);
			this.txtEntranceDate.TabIndex = 4;
			// 
			// txtClassName
			// 
			this.txtClassName.Location = new System.Drawing.Point(120, 16);
			this.txtClassName.Name = "txtClassName";
			this.txtClassName.Size = new System.Drawing.Size(160, 21);
			this.txtClassName.TabIndex = 3;
			this.txtClassName.Text = "";
			// 
			// label3
			// 
			this.label3.Location = new System.Drawing.Point(16, 80);
			this.label3.Name = "label3";
			this.label3.TabIndex = 2;
			this.label3.Text = "备注：";
			this.label3.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(16, 48);
			this.label2.Name = "label2";
			this.label2.TabIndex = 1;
			this.label2.Text = "入学日期：";
			this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(16, 16);
			this.label1.Name = "label1";
			this.label1.TabIndex = 0;
			this.label1.Text = "名称：";
			this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
			// 
			// btnDelete
			// 
			this.btnDelete.Location = new System.Drawing.Point(232, 296);
			this.btnDelete.Name = "btnDelete";
			this.btnDelete.Size = new System.Drawing.Size(75, 22);
			this.btnDelete.TabIndex = 6;
			this.btnDelete.Text = "删除";
			this.btnDelete.Click += new System.EventHandler(this.btnDelete_Click);
			// 
			// frmUpdateClass
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(472, 326);
			this.Controls.Add(this.btnDelete);
			this.Controls.Add(this.btnClose);
			this.Controls.Add(this.btnSubmit);
			this.Controls.Add(this.groupBox1);
			this.MaximizeBox = false;
			this.MinimizeBox = false;
			this.Name = "frmUpdateClass";
			this.ShowInTaskbar = false;
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "更新班信息";
			this.Load += new System.EventHandler(this.frmUpdateClass_Load);
			this.groupBox1.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		private void btnSubmit_Click(object sender, System.EventArgs e)
		{
			Classs classs = new Classs();
			try
			{
				classs.UpdateClass(
					m_iClassId,
					txtClassName.Text,
					txtEntranceDate.Value,
					txtRemark.Text);
			}
			catch(Exception ex)
			{
				MessageBox.Show(ex.Message);
			}
			MessageBox.Show("更改成功");
		}

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

		private void btnDelete_Click(object sender, System.EventArgs e)
		{
			StudentSystem studentSystem = new StudentSystem();
			try
			{
				studentSystem.DeleteClass(
					m_iClassId);
			}
			catch(Exception ex)
			{
				MessageBox.Show(ex.Message);
				return;
			}
			MessageBox.Show("删除成功。");
			this.Close();

		}

		private void frmUpdateClass_Load(object sender, System.EventArgs e)
		{
			GetClassInfo();
			GetCourse();
		}

		private void GetClassInfo()
		{
			Classs classs = new Classs();
			DataSet dataSet = new DataSet();
			try
			{
				dataSet = classs.SelectClass(
					m_iClassId,
					"");
			}
			catch(Exception ex)
			{
				MessageBox.Show(ex.Message);
				this.Close();
			}
			if(dataSet.Tables[0].Rows.Count == 0)
			{
				MessageBox.Show("班信息不存在。");
				this.Close();
			}
			DataRow row = dataSet.Tables[0].Rows[0];
			this.txtClassName.Text = row["ClassName"].ToString();
			this.txtRemark.Text = row["Remark"].ToString();
			this.txtEntranceDate.Value = Convert.ToDateTime(row["EntranceDate"]);
		}

		private void CreateCourseTemp()
		{
			ColumnHeader columnHeader = new ColumnHeader();
			columnHeader.Text = "课程名称";
			lstCourse.Columns.Add(columnHeader);
		
			columnHeader = new ColumnHeader();
			columnHeader.Text = "CourseId";
			lstCourse.Columns.Add(columnHeader);

			columnHeader = new ColumnHeader();
			columnHeader.Text = "SubjectId";
			lstCourse.Columns.Add(columnHeader);

		}
		
		private void GetCourse()
		{
			Classs classs = new Classs();
			DataSet dataSet = new DataSet();
			dataSet = classs.SelectClassCourse(
				m_iClassId);

			for(int i = 0; i < dataSet.Tables[0].Rows.Count; i ++)
			{
				DataRow row = dataSet.Tables[0].Rows[i];
				string[] sItems = new string[3];
				sItems[0] = row["SubjectName"].ToString();
				sItems[1] = row["SubjectId"].ToString();
				sItems[2] = row["CourseId"].ToString();
				
				ListViewItem item = new ListViewItem(sItems, 2);
				item.Checked = (row["CourseId"] != System.DBNull.Value);		
				lstCourse.Items.Add(item);
			}
			classs.Dispose();
		}

		private void groupBox1_Enter(object sender, System.EventArgs e)
		{
		
		}
	
	}
}