frmedit.cs

北大青鸟内部资料

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

namespace Example1_new
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class frmEdit : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button btnSave;
		private System.Windows.Forms.TextBox txtContent;
		private System.Windows.Forms.Label lblFileName;
		private System.Windows.Forms.TextBox txtFileName;

		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public frmEdit()
		{
			//
			// 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.txtFileName = new System.Windows.Forms.TextBox();
			this.btnSave = new System.Windows.Forms.Button();
			this.txtContent = new System.Windows.Forms.TextBox();
			this.lblFileName = new System.Windows.Forms.Label();
			this.SuspendLayout();
			// 
			// txtFileName
			// 
			this.txtFileName.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right)));
			this.txtFileName.Location = new System.Drawing.Point(56, 4);
			this.txtFileName.Name = "txtFileName";
			this.txtFileName.Size = new System.Drawing.Size(336, 21);
			this.txtFileName.TabIndex = 1;
			this.txtFileName.Text = "";
			// 
			// btnSave
			// 
			this.btnSave.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
			this.btnSave.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.btnSave.Location = new System.Drawing.Point(396, 4);
			this.btnSave.Name = "btnSave";
			this.btnSave.Size = new System.Drawing.Size(75, 21);
			this.btnSave.TabIndex = 2;
			this.btnSave.Text = "保存(&S)";
			this.btnSave.Click += new System.EventHandler(this.btnSave_Click);
			// 
			// txtContent
			// 
			this.txtContent.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
				| System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right)));
			this.txtContent.Location = new System.Drawing.Point(0, 28);
			this.txtContent.Multiline = true;
			this.txtContent.Name = "txtContent";
			this.txtContent.Size = new System.Drawing.Size(472, 424);
			this.txtContent.TabIndex = 3;
			this.txtContent.Text = "";
			// 
			// lblFileName
			// 
			this.lblFileName.Location = new System.Drawing.Point(0, 4);
			this.lblFileName.Name = "lblFileName";
			this.lblFileName.Size = new System.Drawing.Size(56, 23);
			this.lblFileName.TabIndex = 4;
			this.lblFileName.Text = "文件名：";
			this.lblFileName.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
			// 
			// frmEdit
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(472, 453);
			this.Controls.Add(this.lblFileName);
			this.Controls.Add(this.txtContent);
			this.Controls.Add(this.btnSave);
			this.Controls.Add(this.txtFileName);
			this.Name = "frmEdit";
			this.Text = "文本编辑器";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new frmEdit());
		}

		private void btnSave_Click(object sender, System.EventArgs e)
		{
			FileStream fs;
			try
			{
				fs = File.Create(txtFileName.Text);
			}
			catch
			{
				MessageBox.Show("建立文件时出错。","错误",
					System.Windows.Forms.MessageBoxButtons.OK, 
					System.Windows.Forms.MessageBoxIcon.Warning);
				return;
			}
		
			byte[] content = new UTF8Encoding(true).GetBytes(txtContent.Text);
			try
			{
				fs.Write(content, 0, content.Length);
				fs.Flush();
				MessageBox.Show("保存成功", "保存",
					System.Windows.Forms.MessageBoxButtons.OK,
					System.Windows.Forms.MessageBoxIcon.Information);
			}
			catch
			{
				MessageBox.Show("写入文件时出错。","错误",
					System.Windows.Forms.MessageBoxButtons.OK,
					System.Windows.Forms.MessageBoxIcon.Warning);
			}
			finally
			{		
				fs.Close();
			}
		}
	}
}