newform.cs

关键词:.net Winform C# DataSource

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Data;
using System.Xml;
using System.Xml.XPath;
namespace DataServer
{
	/// <summary>
	/// NewForm 的摘要说明。
	/// </summary>
	public class NewForm : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button btn_close;
		private System.Windows.Forms.DataGrid dg_oper;
		private DataServer.DSOper dsOper;
		private SqlDataAdapter cmdOper;
		private System.Windows.Forms.Button btn_update;
		public SqlCommandBuilder objcmdBuilder;
		private System.Windows.Forms.Button btn_refresh;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public NewForm()
		{
			//
			// 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.btn_close = new System.Windows.Forms.Button();
			this.dg_oper = new System.Windows.Forms.DataGrid();
			this.dsOper = new DataServer.DSOper();
			this.btn_refresh = new System.Windows.Forms.Button();
			this.btn_update = new System.Windows.Forms.Button();
			((System.ComponentModel.ISupportInitialize)(this.dg_oper)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.dsOper)).BeginInit();
			this.SuspendLayout();
			// 
			// btn_close
			// 
			this.btn_close.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
			this.btn_close.Location = new System.Drawing.Point(472, 296);
			this.btn_close.Name = "btn_close";
			this.btn_close.TabIndex = 1;
			this.btn_close.Text = "Close(&C)";
			this.btn_close.Click += new System.EventHandler(this.btn_close_Click);
			// 
			// dg_oper
			// 
			this.dg_oper.DataMember = "";
			this.dg_oper.DataSource = this.dsOper.oper;
			this.dg_oper.HeaderForeColor = System.Drawing.SystemColors.ControlText;
			this.dg_oper.Location = new System.Drawing.Point(0, 0);
			this.dg_oper.Name = "dg_oper";
			this.dg_oper.Size = new System.Drawing.Size(568, 280);
			this.dg_oper.TabIndex = 2;
			// 
			// dsOper
			// 
			this.dsOper.DataSetName = "DSOper";
			this.dsOper.Locale = new System.Globalization.CultureInfo("en-US");
			// 
			// btn_refresh
			// 
			this.btn_refresh.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
			this.btn_refresh.Location = new System.Drawing.Point(312, 296);
			this.btn_refresh.Name = "btn_refresh";
			this.btn_refresh.TabIndex = 3;
			this.btn_refresh.Text = "Refresh(&R)";
			this.btn_refresh.Click += new System.EventHandler(this.btn_show_Click);
			// 
			// btn_update
			// 
			this.btn_update.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
			this.btn_update.Location = new System.Drawing.Point(392, 296);
			this.btn_update.Name = "btn_update";
			this.btn_update.TabIndex = 4;
			this.btn_update.Text = "Update(&U)";
			this.btn_update.Click += new System.EventHandler(this.btn_update_Click);
			// 
			// NewForm
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(568, 333);
			this.Controls.Add(this.btn_update);
			this.Controls.Add(this.btn_refresh);
			this.Controls.Add(this.dg_oper);
			this.Controls.Add(this.btn_close);
			this.Name = "NewForm";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "NewForm";
			this.Load += new System.EventHandler(this.NewForm_Load);
			((System.ComponentModel.ISupportInitialize)(this.dg_oper)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.dsOper)).EndInit();
			this.ResumeLayout(false);

		}
		#endregion

		private void btn_close_Click(object sender, System.EventArgs e)
		{
			this.Close() ;
		}

		private void btn_show_Click(object sender, System.EventArgs e)
		{
			dsOper.Tables[0].Clear();
			cmdOper = new SqlDataAdapter("Select oper_code,oper_name from code_operator", DBConnect.Instance().cn);
			cmdOper.Fill(dsOper.Tables[0]);
			objcmdBuilder = new SqlCommandBuilder(cmdOper); 
			cmdOper.UpdateCommand = objcmdBuilder.GetUpdateCommand(); 
			cmdOper.InsertCommand = objcmdBuilder.GetInsertCommand(); 
			cmdOper.DeleteCommand = objcmdBuilder.GetDeleteCommand(); 
		}

		private void NewForm_Load(object sender, System.EventArgs e)
		{
			btn_refresh.PerformClick();
		}

		private void btn_update_Click(object sender, System.EventArgs e)
		{
			try
			{
				cmdOper.Update(dsOper,"oper");
				dsOper.AcceptChanges();
				MessageBox.Show("更新成功!");
			}
			catch (System.Exception ex)
			{
				MessageBox.Show(this,ex.Message.ToString());
			}
		}
	}
}