workerform.cs

这是一个保障消费者合法权益的系统．使用C ＃和SQL Server终于实现了这一功能的系统

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

namespace Customer_Maintenance_Project
{
	/// <summary>
	/// Summary description for WorkerForm.
	/// </summary>
	public class WorkerForm : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button btnSave;
		private System.Windows.Forms.Button btnEdit;
		private System.Windows.Forms.Button btnCancel;
		private System.Windows.Forms.Button btnExit;
		private System.Data.SqlClient.SqlDataAdapter sqlDataAdapter1;
		private System.Data.SqlClient.SqlCommand sqlSelectCommand1;
		private System.Data.SqlClient.SqlCommand sqlInsertCommand1;
		private System.Data.SqlClient.SqlCommand sqlUpdateCommand1;
		private System.Data.SqlClient.SqlCommand sqlDeleteCommand1;
		private System.Data.SqlClient.SqlConnection sqlConnection1;
		private Customer_Maintenance_Project.WorkerDataSet workerDataSet1;
		private System.Windows.Forms.DataGrid dataGrid1;
		private System.Windows.Forms.Label label1;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public WorkerForm()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.btnSave = new System.Windows.Forms.Button();
			this.btnEdit = new System.Windows.Forms.Button();
			this.btnCancel = new System.Windows.Forms.Button();
			this.btnExit = new System.Windows.Forms.Button();
			this.sqlDataAdapter1 = new System.Data.SqlClient.SqlDataAdapter();
			this.sqlDeleteCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlConnection1 = new System.Data.SqlClient.SqlConnection();
			this.sqlInsertCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlSelectCommand1 = new System.Data.SqlClient.SqlCommand();
			this.sqlUpdateCommand1 = new System.Data.SqlClient.SqlCommand();
			this.workerDataSet1 = new Customer_Maintenance_Project.WorkerDataSet();
			this.dataGrid1 = new System.Windows.Forms.DataGrid();
			this.label1 = new System.Windows.Forms.Label();
			((System.ComponentModel.ISupportInitialize)(this.workerDataSet1)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
			this.SuspendLayout();
			// 
			// btnSave
			// 
			this.btnSave.Location = new System.Drawing.Point(48, 192);
			this.btnSave.Name = "btnSave";
			this.btnSave.TabIndex = 1;
			this.btnSave.Text = "&Save";
			this.btnSave.Click += new System.EventHandler(this.btnSave_Click);
			// 
			// btnEdit
			// 
			this.btnEdit.Location = new System.Drawing.Point(192, 192);
			this.btnEdit.Name = "btnEdit";
			this.btnEdit.TabIndex = 2;
			this.btnEdit.Text = "&Edit";
			this.btnEdit.Click += new System.EventHandler(this.btnEdit_Click);
			// 
			// btnCancel
			// 
			this.btnCancel.Location = new System.Drawing.Point(320, 192);
			this.btnCancel.Name = "btnCancel";
			this.btnCancel.TabIndex = 3;
			this.btnCancel.Text = "&Cancel";
			this.btnCancel.Click += new System.EventHandler(this.btnCancel_Click);
			// 
			// btnExit
			// 
			this.btnExit.Location = new System.Drawing.Point(464, 192);
			this.btnExit.Name = "btnExit";
			this.btnExit.TabIndex = 4;
			this.btnExit.Text = "E&xit";
			this.btnExit.Click += new System.EventHandler(this.btnExit_Click);
			// 
			// sqlDataAdapter1
			// 
			this.sqlDataAdapter1.DeleteCommand = this.sqlDeleteCommand1;
			this.sqlDataAdapter1.InsertCommand = this.sqlInsertCommand1;
			this.sqlDataAdapter1.SelectCommand = this.sqlSelectCommand1;
			this.sqlDataAdapter1.TableMappings.AddRange(new System.Data.Common.DataTableMapping[] {
																									  new System.Data.Common.DataTableMapping("Table", "tblWorker", new System.Data.Common.DataColumnMapping[] {
																																																				   new System.Data.Common.DataColumnMapping("WorkerId", "WorkerId"),
																																																				   new System.Data.Common.DataColumnMapping("Name", "Name")})});
			this.sqlDataAdapter1.UpdateCommand = this.sqlUpdateCommand1;
			// 
			// sqlDeleteCommand1
			// 
			this.sqlDeleteCommand1.CommandText = "DELETE FROM tblWorker WHERE (WorkerId = @Original_WorkerId) AND (Name = @Original" +
				"_Name OR @Original_Name IS NULL AND Name IS NULL)";
			this.sqlDeleteCommand1.Connection = this.sqlConnection1;
			this.sqlDeleteCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_WorkerId", System.Data.SqlDbType.Int, 4, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "WorkerId", System.Data.DataRowVersion.Original, null));
			this.sqlDeleteCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_Name", System.Data.SqlDbType.NVarChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "Name", System.Data.DataRowVersion.Original, null));
			// 
			// sqlConnection1
			// 
			this.sqlConnection1.ConnectionString = "data source=geetanjali-d190;initial catalog=CMS;integrated security=SSPI;persist " +
				"security info=False;workstation id=GEETANJALI-D190;packet size=4096";
			// 
			// sqlInsertCommand1
			// 
			this.sqlInsertCommand1.CommandText = "INSERT INTO tblWorker(WorkerId, Name) VALUES (@WorkerId, @Name); SELECT WorkerId," +
				" Name FROM tblWorker WHERE (WorkerId = @WorkerId)";
			this.sqlInsertCommand1.Connection = this.sqlConnection1;
			this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@WorkerId", System.Data.SqlDbType.Int, 4, "WorkerId"));
			this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Name", System.Data.SqlDbType.NVarChar, 50, "Name"));
			// 
			// sqlSelectCommand1
			// 
			this.sqlSelectCommand1.CommandText = "SELECT WorkerId, Name FROM tblWorker";
			this.sqlSelectCommand1.Connection = this.sqlConnection1;
			// 
			// sqlUpdateCommand1
			// 
			this.sqlUpdateCommand1.CommandText = "UPDATE tblWorker SET WorkerId = @WorkerId, Name = @Name WHERE (WorkerId = @Origin" +
				"al_WorkerId) AND (Name = @Original_Name OR @Original_Name IS NULL AND Name IS NU" +
				"LL); SELECT WorkerId, Name FROM tblWorker WHERE (WorkerId = @WorkerId)";
			this.sqlUpdateCommand1.Connection = this.sqlConnection1;
			this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@WorkerId", System.Data.SqlDbType.Int, 4, "WorkerId"));
			this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Name", System.Data.SqlDbType.NVarChar, 50, "Name"));
			this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_WorkerId", System.Data.SqlDbType.Int, 4, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "WorkerId", System.Data.DataRowVersion.Original, null));
			this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_Name", System.Data.SqlDbType.NVarChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "Name", System.Data.DataRowVersion.Original, null));
			// 
			// workerDataSet1
			// 
			this.workerDataSet1.DataSetName = "WorkerDataSet";
			this.workerDataSet1.Locale = new System.Globalization.CultureInfo("en-US");
			this.workerDataSet1.Namespace = "http://www.tempuri.org/WorkerDataSet.xsd";
			// 
			// dataGrid1
			// 
			this.dataGrid1.DataMember = "tblWorker";
			this.dataGrid1.DataSource = this.workerDataSet1;
			this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
			this.dataGrid1.Location = new System.Drawing.Point(40, 80);
			this.dataGrid1.Name = "dataGrid1";
			this.dataGrid1.Size = new System.Drawing.Size(464, 80);
			this.dataGrid1.TabIndex = 5;
			// 
			// label1
			// 
			this.label1.Font = new System.Drawing.Font("Arial", 10F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label1.Location = new System.Drawing.Point(120, 40);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(328, 23);
			this.label1.TabIndex = 6;
			this.label1.Text = "Click on the Edit button to load the records.";
			// 
			// WorkerForm
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(592, 273);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.label1,
																		  this.dataGrid1,
																		  this.btnExit,
																		  this.btnCancel,
																		  this.btnEdit,
																		  this.btnSave});
			this.Name = "WorkerForm";
			this.Text = "WorkerForm";
			this.Load += new System.EventHandler(this.WorkerForm_Load);
			((System.ComponentModel.ISupportInitialize)(this.workerDataSet1)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
			this.ResumeLayout(false);

		}
		#endregion

		private void WorkerForm_Load(object sender, System.EventArgs e)
		{
			
		}

		private void btnSave_Click(object sender, System.EventArgs e)
		{
			sqlDataAdapter1.Update(workerDataSet1);
			MessageBox.Show("The Worker table is updated.");

		}

		private void btnEdit_Click(object sender, System.EventArgs e)
		{
			workerDataSet1.Clear();
			sqlDataAdapter1.Fill(workerDataSet1);

		}

		private void btnExit_Click(object sender, System.EventArgs e)
		{
			Form1 newForm = new  Form1();
			newForm.Show();
			this.Hide();
		}

		private void btnCancel_Click(object sender, System.EventArgs e)
		{
			workerDataSet1.Clear();
		}
	}
}