frmbasedataman.cs

一个好的系统 对初学者很有用啊 来看看啊

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

namespace ExamCenter.FormTier
{
	/// <summary>
	/// FrmDataManage 的摘要说明。
	/// </summary>
	public class FrmBaseDataMan : System.Windows.Forms.Form
	{
		//记录树中被选定节点对应的行信息
		private BaseDataUnit bduCurrent=new BaseDataUnit();
		//dsBDU是包含所有基础数据的数据集，dtBDU是包含所有基础数据的数据表
		//dvBDU是dtBDU的默认数据视图
		private DataSet dsBDU;
		private DataTable dtBDU;
		private DataView dvBDU;
		
		private System.Windows.Forms.TreeView trDataFunction;
		private System.Windows.Forms.DataGrid dgDisplay;
		private System.Windows.Forms.TextBox txtDescription;
		private System.Windows.Forms.Button btnAddNode;
		private System.Windows.Forms.Button btnDeleteNode;
		private System.Windows.Forms.Button btnSave;
		private System.Windows.Forms.TextBox txtName;
		private System.Windows.Forms.Button btnCancelOperation;
		private System.Windows.Forms.Button btnModify;
		private System.Windows.Forms.GroupBox grpDescription;
		private System.Windows.Forms.TextBox txtSectionID;
		private System.Windows.Forms.Label lblSectionID;
		private System.Windows.Forms.Label lbtName;
		private System.Windows.Forms.Label lblDescription;
		private System.Windows.Forms.Label lblTitle;
		private System.Windows.Forms.Label lblExit;
		private System.Windows.Forms.GroupBox groupBox1;
		private System.Windows.Forms.ImageList imageList1;
		private System.ComponentModel.IContainer components;

		public FrmBaseDataMan()
		{
			//
			// 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
			//
			//获得所有包含所有数据的数据集dsBDU,同时初始化dtBDU和dvBDU
			//然后根据dtBDU创建树
			dsBDU=new BaseDataManBLC().GetAllBaseData ();
			dtBDU=dsBDU.Tables [0];
			dvBDU =dtBDU .DefaultView ;
			SetDgTableStyle ();
			RefreshTree();
			//
			//将txtID，txtName，txtDescription文本框的Text属性绑定到dvBDU的对应列
			this.txtSectionID.DataBindings.Add ("Text",dvBDU,"sectionID");
			this.txtName.DataBindings .Add ("Text",dvBDU,"name");
			this.txtDescription .DataBindings .Add ("Text",dvBDU,"description");			
		}

		/// <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 Form Designer generated code
		/// <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(FrmBaseDataMan));
			this.trDataFunction = new System.Windows.Forms.TreeView();
			this.imageList1 = new System.Windows.Forms.ImageList(this.components);
			this.dgDisplay = new System.Windows.Forms.DataGrid();
			this.txtDescription = new System.Windows.Forms.TextBox();
			this.btnAddNode = new System.Windows.Forms.Button();
			this.btnDeleteNode = new System.Windows.Forms.Button();
			this.btnSave = new System.Windows.Forms.Button();
			this.txtName = new System.Windows.Forms.TextBox();
			this.btnCancelOperation = new System.Windows.Forms.Button();
			this.btnModify = new System.Windows.Forms.Button();
			this.grpDescription = new System.Windows.Forms.GroupBox();
			this.lblDescription = new System.Windows.Forms.Label();
			this.lbtName = new System.Windows.Forms.Label();
			this.lblSectionID = new System.Windows.Forms.Label();
			this.txtSectionID = new System.Windows.Forms.TextBox();
			this.lblTitle = new System.Windows.Forms.Label();
			this.lblExit = new System.Windows.Forms.Label();
			this.groupBox1 = new System.Windows.Forms.GroupBox();
			((System.ComponentModel.ISupportInitialize)(this.dgDisplay)).BeginInit();
			this.grpDescription.SuspendLayout();
			this.groupBox1.SuspendLayout();
			this.SuspendLayout();
			// 
			// trDataFunction
			// 
			this.trDataFunction.ImageList = this.imageList1;
			this.trDataFunction.Location = new System.Drawing.Point(8, 32);
			this.trDataFunction.Name = "trDataFunction";
			this.trDataFunction.SelectedImageIndex = 1;
			this.trDataFunction.Size = new System.Drawing.Size(184, 408);
			this.trDataFunction.TabIndex = 0;
			this.trDataFunction.AfterSelect += new System.Windows.Forms.TreeViewEventHandler(this.trDataFunction_AfterSelect);
			this.trDataFunction.BeforeSelect += new System.Windows.Forms.TreeViewCancelEventHandler(this.trDataFunction_BeforeSelect);
			// 
			// imageList1
			// 
			this.imageList1.ColorDepth = System.Windows.Forms.ColorDepth.Depth8Bit;
			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;
			// 
			// dgDisplay
			// 
			this.dgDisplay.BackColor = System.Drawing.SystemColors.ScrollBar;
			this.dgDisplay.BackgroundColor = System.Drawing.Color.WhiteSmoke;
			this.dgDisplay.CaptionVisible = false;
			this.dgDisplay.DataMember = "";
			this.dgDisplay.HeaderForeColor = System.Drawing.SystemColors.ControlText;
			this.dgDisplay.Location = new System.Drawing.Point(8, 17);
			this.dgDisplay.Name = "dgDisplay";
			this.dgDisplay.ReadOnly = true;
			this.dgDisplay.Size = new System.Drawing.Size(408, 175);
			this.dgDisplay.TabIndex = 11;
			// 
			// txtDescription
			// 
			this.txtDescription.Location = new System.Drawing.Point(64, 56);
			this.txtDescription.MaxLength = 100;
			this.txtDescription.Multiline = true;
			this.txtDescription.Name = "txtDescription";
			this.txtDescription.ReadOnly = true;
			this.txtDescription.Size = new System.Drawing.Size(352, 96);
			this.txtDescription.TabIndex = 4;
			this.txtDescription.Text = "";
			// 
			// btnAddNode
			// 
			this.btnAddNode.BackColor = System.Drawing.Color.Transparent;
			this.btnAddNode.Location = new System.Drawing.Point(200, 408);
			this.btnAddNode.Name = "btnAddNode";
			this.btnAddNode.Size = new System.Drawing.Size(72, 23);
			this.btnAddNode.TabIndex = 1;
			this.btnAddNode.Text = "添加";
			this.btnAddNode.Click += new System.EventHandler(this.btnAddNode_Click);
			// 
			// btnDeleteNode
			// 
			this.btnDeleteNode.BackColor = System.Drawing.Color.Transparent;
			this.btnDeleteNode.Location = new System.Drawing.Point(280, 408);
			this.btnDeleteNode.Name = "btnDeleteNode";
			this.btnDeleteNode.Size = new System.Drawing.Size(72, 23);
			this.btnDeleteNode.TabIndex = 7;
			this.btnDeleteNode.Text = "删除";
			this.btnDeleteNode.Click += new System.EventHandler(this.btnDeleteNode_Click);
			// 
			// btnSave
			// 
			this.btnSave.BackColor = System.Drawing.Color.Transparent;
			this.btnSave.Enabled = false;
			this.btnSave.Location = new System.Drawing.Point(440, 408);
			this.btnSave.Name = "btnSave";
			this.btnSave.Size = new System.Drawing.Size(72, 23);
			this.btnSave.TabIndex = 5;
			this.btnSave.Text = "保存";
			this.btnSave.Click += new System.EventHandler(this.btnSave_Click);
			// 
			// txtName
			// 
			this.txtName.Location = new System.Drawing.Point(216, 24);
			this.txtName.MaxLength = 25;
			this.txtName.Multiline = true;
			this.txtName.Name = "txtName";
			this.txtName.ReadOnly = true;
			this.txtName.Size = new System.Drawing.Size(200, 21);
			this.txtName.TabIndex = 3;
			this.txtName.Text = "";
			// 
			// btnCancelOperation
			// 
			this.btnCancelOperation.BackColor = System.Drawing.Color.Transparent;
			this.btnCancelOperation.Enabled = false;
			this.btnCancelOperation.Location = new System.Drawing.Point(520, 408);
			this.btnCancelOperation.Name = "btnCancelOperation";
			this.btnCancelOperation.Size = new System.Drawing.Size(88, 23);
			this.btnCancelOperation.TabIndex = 6;
			this.btnCancelOperation.Text = "撤销全部操作";
			this.btnCancelOperation.Click += new System.EventHandler(this.btnCancelOperation_Click);
			// 
			// btnModify
			// 
			this.btnModify.BackColor = System.Drawing.Color.Transparent;
			this.btnModify.Location = new System.Drawing.Point(360, 408);
			this.btnModify.Name = "btnModify";
			this.btnModify.Size = new System.Drawing.Size(72, 23);
			this.btnModify.TabIndex = 12;
			this.btnModify.Text = "修改";
			this.btnModify.Click += new System.EventHandler(this.btnModify_Click);
			// 
			// grpDescription
			// 
			this.grpDescription.BackColor = System.Drawing.Color.Transparent;
			this.grpDescription.Controls.AddRange(new System.Windows.Forms.Control[] {
																						 this.lblDescription,
																						 this.lbtName,
																						 this.lblSectionID,
																						 this.txtDescription,
																						 this.txtSectionID,
																						 this.txtName});
			this.grpDescription.Location = new System.Drawing.Point(196, 240);
			this.grpDescription.Name = "grpDescription";
			this.grpDescription.Size = new System.Drawing.Size(422, 160);
			this.grpDescription.TabIndex = 15;
			this.grpDescription.TabStop = false;
			this.grpDescription.Text = "详细信息";
			this.grpDescription.Enter += new System.EventHandler(this.grpDescription_Enter);
			// 
			// lblDescription
			// 
			this.lblDescription.Location = new System.Drawing.Point(8, 56);
			this.lblDescription.Name = "lblDescription";
			this.lblDescription.Size = new System.Drawing.Size(48, 16);
			this.lblDescription.TabIndex = 7;
			this.lblDescription.Text = "描述：";
			this.lblDescription.TextAlign = System.Drawing.ContentAlignment.TopRight;
			// 
			// lbtName
			// 
			this.lbtName.Location = new System.Drawing.Point(168, 26);
			this.lbtName.Name = "lbtName";
			this.lbtName.Size = new System.Drawing.Size(48, 16);
			this.lbtName.TabIndex = 6;
			this.lbtName.Text = "名称：";
			this.lbtName.TextAlign = System.Drawing.ContentAlignment.TopRight;
			// 
			// lblSectionID
			// 
			this.lblSectionID.Location = new System.Drawing.Point(8, 26);
			this.lblSectionID.Name = "lblSectionID";
			this.lblSectionID.Size = new System.Drawing.Size(48, 16);
			this.lblSectionID.TabIndex = 5;
			this.lblSectionID.Text = "编号：";
			this.lblSectionID.TextAlign = System.Drawing.ContentAlignment.TopRight;
			// 
			// txtSectionID
			// 
			this.txtSectionID.Location = new System.Drawing.Point(64, 24);
			this.txtSectionID.MaxLength = 10;
			this.txtSectionID.Multiline = true;
			this.txtSectionID.Name = "txtSectionID";
			this.txtSectionID.ReadOnly = true;
			this.txtSectionID.Size = new System.Drawing.Size(104, 21);
			this.txtSectionID.TabIndex = 0;
			this.txtSectionID.Text = "";
			// 
			// lblTitle
			// 
			this.lblTitle.BackColor = System.Drawing.Color.Transparent;
			this.lblTitle.ForeColor = System.Drawing.SystemColors.ControlLightLight;
			this.lblTitle.Location = new System.Drawing.Point(256, 8);
			this.lblTitle.Name = "lblTitle";
			this.lblTitle.Size = new System.Drawing.Size(112, 16);
			this.lblTitle.TabIndex = 16;
			this.lblTitle.Text = "基 础 数 据 管 理";
			// 
			// lblExit
			// 
			this.lblExit.BackColor = System.Drawing.Color.Transparent;
			this.lblExit.Location = new System.Drawing.Point(607, 3);
			this.lblExit.Name = "lblExit";
			this.lblExit.Size = new System.Drawing.Size(16, 14);
			this.lblExit.TabIndex = 17;
			this.lblExit.Click += new System.EventHandler(this.lblExit_Click);
			// 
			// groupBox1
			// 
			this.groupBox1.BackColor = System.Drawing.Color.Transparent;
			this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] {
																					this.dgDisplay});
			this.groupBox1.Location = new System.Drawing.Point(196, 32);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(422, 200);
			this.groupBox1.TabIndex = 18;
			this.groupBox1.TabStop = false;
			this.groupBox1.Text = "列表";
			// 
			// FrmBaseDataMan
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.BackgroundImage = ((System.Drawing.Bitmap)(resources.GetObject("$this.BackgroundImage")));
			this.ClientSize = new System.Drawing.Size(625, 445);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.lblExit,
																		  this.lblTitle,
																		  this.grpDescription,
																		  this.btnModify,
																		  this.btnCancelOperation,
																		  this.btnSave,
																		  this.btnDeleteNode,
																		  this.btnAddNode,
																		  this.trDataFunction,
																		  this.groupBox1});
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
			this.MaximizeBox = false;