newfile.cs

火车票的销售系统

using System;

using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace filemanger
{
	/// <summary>
	/// NewFile 的摘要说明。
	/// </summary>
	public class NewFile : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label label1;
		public System.Windows.Forms.Label lbParentPath;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.TextBox txtName;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public NewFile()
		{
			//
			// 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.label1 = new System.Windows.Forms.Label();
			this.lbParentPath = new System.Windows.Forms.Label();
			this.label3 = new System.Windows.Forms.Label();
			this.txtName = new System.Windows.Forms.TextBox();
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(16, 24);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(72, 24);
			this.label1.TabIndex = 0;
			this.label1.Text = "当前路径";
			// 
			// lbParentPath
			// 
			this.lbParentPath.Location = new System.Drawing.Point(136, 24);
			this.lbParentPath.Name = "lbParentPath";
			this.lbParentPath.Size = new System.Drawing.Size(128, 16);
			this.lbParentPath.TabIndex = 1;
			this.lbParentPath.Text = "label2";
			// 
			// label3
			// 
			this.label3.Location = new System.Drawing.Point(16, 56);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(104, 24);
			this.label3.TabIndex = 2;
			this.label3.Text = "请输入新的文件名";
			// 
			// txtName
			// 
			this.txtName.Location = new System.Drawing.Point(144, 56);
			this.txtName.Name = "txtName";
			this.txtName.Size = new System.Drawing.Size(120, 21);
			this.txtName.TabIndex = 3;
			this.txtName.Text = "";
			this.txtName.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txtName_KeyDown);
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(24, 120);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(56, 32);
			this.button1.TabIndex = 4;
			this.button1.Text = "确定";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(128, 120);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(56, 32);
			this.button2.TabIndex = 5;
			this.button2.Text = "取消";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// NewFile
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(292, 266);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.txtName);
			this.Controls.Add(this.label3);
			this.Controls.Add(this.lbParentPath);
			this.Controls.Add(this.label1);
			this.Name = "NewFile";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
			this.Text = "NewFile";
			this.WindowState = System.Windows.Forms.FormWindowState.Minimized;
			this.ResumeLayout(false);

		}
		#endregion

		private void button1_Click(object sender, System.EventArgs e)
		{
			txtName.Text.Trim();
			if(txtName.Text=="")
			{
				MessageBox.Show("文件名不能为空！");
				return;
			}
			if(File.Exists(lbParentPath.Text+"\\"+txtName.Text))
			{
				MessageBox.Show("该文件已存在，请重新命名！");
				return;
			}
			string FullName = lbParentPath.Text + "\\" + txtName.Text;
			StreamWriter sw = File.CreateText(FullName);
			Close();
		}

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

		private void txtName_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
		{
			if (e.KeyCode == Keys.Enter)
			{
				txtName.Text.Trim();
				if (txtName.Text == "")
				{
					MessageBox.Show("文件名不能为空！");
					return;
				}
				if (File.Exists(lbParentPath.Text + "\\" + txtName.Text))
				{
					MessageBox.Show("文件名已经存在，请重新命名！");
					return;
				}
				string FullName = lbParentPath.Text + "\\" + txtName.Text;
				StreamWriter sw = File.CreateText(FullName);
				Close();
			}
		}
	}
}