form1.cs

C#经典范例50讲

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

namespace DisWinClient
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.DataGrid dataGrid1;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private DisWinClient.localhost.DataSet1 dataSet11;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// 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 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.dataGrid1 = new System.Windows.Forms.DataGrid();
			this.dataSet11 = new DisWinClient.localhost.DataSet1();
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.dataSet11)).BeginInit();
			this.SuspendLayout();
			// 
			// dataGrid1
			// 
			this.dataGrid1.DataMember = "user";
			this.dataGrid1.DataSource = this.dataSet11;
			this.dataGrid1.Dock = System.Windows.Forms.DockStyle.Top;
			this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
			this.dataGrid1.Name = "dataGrid1";
			this.dataGrid1.Size = new System.Drawing.Size(424, 232);
			this.dataGrid1.TabIndex = 0;
			// 
			// dataSet11
			// 
			this.dataSet11.DataSetName = "DataSet1";
			this.dataSet11.Locale = new System.Globalization.CultureInfo("zh-CN");
			this.dataSet11.Namespace = "http://www.tempuri.org/DataSet1.xsd";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(79, 240);
			this.button1.Name = "button1";
			this.button1.TabIndex = 1;
			this.button1.Text = "Load";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(271, 240);
			this.button2.Name = "button2";
			this.button2.TabIndex = 2;
			this.button2.Text = "Save";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(8, 18);
			this.ClientSize = new System.Drawing.Size(424, 272);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.button2,
																		  this.button1,
																		  this.dataGrid1});
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
			this.MaximizeBox = false;
			this.Name = "Form1";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "分布式应用程序";
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.dataSet11)).EndInit();
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}
		// 显示数据库内容
		private void button1_Click(object sender, System.EventArgs e)
		{
			DisWinClient.localhost.Service1 server = 
				new DisWinClient.localhost.Service1();
			server.Credentials = System.Net.CredentialCache.DefaultCredentials;
			dataSet11.Merge(server.GetData());
			button1.Enabled = false;
		}
		// 保存数据库的修改
		private void button2_Click(object sender, System.EventArgs e)
		{
			if (dataSet11.HasChanges())
			{
				DisWinClient.localhost.Service1 server = 
					new DisWinClient.localhost.Service1();
				server.Credentials = System.Net.CredentialCache.DefaultCredentials;
				DisWinClient.localhost.DataSet1 data =
					new DisWinClient.localhost.DataSet1();
				data.Merge(dataSet11.GetChanges());
				server.UpdateData(data);
			}
		}
	}
}