datar.cs

学习正则表达式的编写

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

namespace RegexTool
{
	/// <summary>
	/// DataR 的摘要说明。
	/// </summary>
	public class DataR : System.Windows.Forms.Form
	{
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;
		public System.Windows.Forms.ListBox lbData;
		private System.Windows.Forms.Button btnView;
		private System.Windows.Forms.Button btnAdd;
		private System.Windows.Forms.Button btnDelete;
		private System.Windows.Forms.Button btnRefresh;
		
		public Form1 form1;				//对主窗体进行引用，以便将数据传到主窗体的文本框内

		public DataR()
		{
			//
			// 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()
		{
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(DataR));
			this.lbData = new System.Windows.Forms.ListBox();
			this.btnView = new System.Windows.Forms.Button();
			this.btnAdd = new System.Windows.Forms.Button();
			this.btnDelete = new System.Windows.Forms.Button();
			this.btnRefresh = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// lbData
			// 
			this.lbData.BackColor = System.Drawing.SystemColors.Control;
			this.lbData.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.lbData.HorizontalExtent = 300;
			this.lbData.HorizontalScrollbar = true;
			this.lbData.ItemHeight = 12;
			this.lbData.Location = new System.Drawing.Point(0, 0);
			this.lbData.Name = "lbData";
			this.lbData.ScrollAlwaysVisible = true;
			this.lbData.Size = new System.Drawing.Size(304, 338);
			this.lbData.TabIndex = 0;
			// 
			// btnView
			// 
			this.btnView.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.btnView.Location = new System.Drawing.Point(312, 24);
			this.btnView.Name = "btnView";
			this.btnView.TabIndex = 2;
			this.btnView.Text = "查看";
			this.btnView.Click += new System.EventHandler(this.button2_Click);
			// 
			// btnAdd
			// 
			this.btnAdd.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.btnAdd.Location = new System.Drawing.Point(312, 72);
			this.btnAdd.Name = "btnAdd";
			this.btnAdd.TabIndex = 3;
			this.btnAdd.Text = "添加";
			this.btnAdd.Click += new System.EventHandler(this.btnAdd_Click);
			// 
			// btnDelete
			// 
			this.btnDelete.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.btnDelete.Location = new System.Drawing.Point(312, 120);
			this.btnDelete.Name = "btnDelete";
			this.btnDelete.TabIndex = 4;
			this.btnDelete.Text = "删除";
			this.btnDelete.Click += new System.EventHandler(this.btnDelete_Click);
			// 
			// btnRefresh
			// 
			this.btnRefresh.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.btnRefresh.Location = new System.Drawing.Point(312, 192);
			this.btnRefresh.Name = "btnRefresh";
			this.btnRefresh.TabIndex = 5;
			this.btnRefresh.Text = "刷新";
			this.btnRefresh.Click += new System.EventHandler(this.btnRefresh_Click);
			// 
			// DataR
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(392, 341);
			this.Controls.Add(this.btnRefresh);
			this.Controls.Add(this.btnDelete);
			this.Controls.Add(this.btnAdd);
			this.Controls.Add(this.btnView);
			this.Controls.Add(this.lbData);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
			this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
			this.MaximizeBox = false;
			this.MinimizeBox = false;
			this.Name = "DataR";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "典型正则表达式";
			this.Load += new System.EventHandler(this.DataR_Load);
			this.ResumeLayout(false);

		}
		#endregion

		
		//查看选中的正则表达式并在主窗体中进行验证
		private void button2_Click(object sender, System.EventArgs e)
		{
			int i = lbData.SelectedIndex;
			try
			{
				if (i!=-1)
				{
					DataSet ds = new DataSet();
					ds.ReadXml("Data.xml");
					form1.txtRegex.Text = ds.Tables[0].Rows[i][1].ToString();
					form1.txtText.Text = ds.Tables[0].Rows[i][2].ToString();
					this.Close();
				}
				else
				{
					MessageBox.Show("你必须选中其中的一项才能查看！","没有选中项！");
				}
			}
			catch (Exception exception)
			{
				MessageBox.Show( exception.Message.ToString() );
			}
		}
		//添加数据事件
		private void btnAdd_Click(object sender, System.EventArgs e)
		{
			InsertForm insert = new InsertForm();
			insert.ShowDialog();
			
		}
		//从XML文件加载数据
		private void DataR_Load(object sender, System.EventArgs e)
		{
			LoadData(); //加载数据
		}
		//删除某一项正则表达式
		private void btnDelete_Click(object sender, System.EventArgs e)
		{
			try
			{
				DataSet ds = new DataSet();
				ds.ReadXml("Data.xml");
				int i = lbData.SelectedIndex;
				if ( i != -1 )
				{
					ds.Tables[0].Rows[i].Delete();
					ds.WriteXml("Data.xml");
					lbData.Items.RemoveAt(i);
				}
				else
				{
					MessageBox.Show("您只有选中一项后才能进行删除操作！","没有选中项");
				}
			}
			catch(Exception eee)
			{
				MessageBox.Show( eee.Message.ToString() );
			}
		}
		//刷新lbData内的正则表达式内容
		private void btnRefresh_Click(object sender, System.EventArgs e)
		{
			lbData.Items.Clear();  //清空
			LoadData();				//重新加载

		}
		//从Data.xml文件加载数据到lbData控件上。
		private void LoadData()
		{
			try
			{
				DataSet ds = new DataSet();
				ds.ReadXml("Data.xml");
				lbData.ColumnWidth = 450;
				for ( int i=0; i<ds.Tables[0].Rows.Count; i++ )
				{
					lbData.Items.Add(ds.Tables[0].Rows[i][0].ToString()+" : "+ds.Tables[0].Rows[i][1].ToString());
				
				}
			}
			catch
			{
				MessageBox.Show("找不到数据文件！");
			}
		}


	}
}