Windows编程

开发平台：
C/C++

wgsf.cs：源码内容
							using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.OleDb;
namespace WindowsApplication1
{
	/// <summary>
	/// wgsf 的摘要说明。
	/// </summary>
	public class wgsf : System.Windows.Forms.Form
	{
		private System.Windows.Forms.DataGrid dataGrid1;
		private System.Windows.Forms.StatusBar statusBar1;
		private System.Windows.Forms.StatusBarPanel statusBarPanel1;
		private System.Windows.Forms.StatusBarPanel statusBarPanel2;
		private System.Windows.Forms.StatusBarPanel statusBarPanel3;
		private System.Windows.Forms.StatusBarPanel statusBarPanel4;
		private System.Windows.Forms.StatusBarPanel statusBarPanel5;
		private System.Windows.Forms.StatusBarPanel statusBarPanel6;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.ComboBox comboBox1;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.ComboBox comboBox2;
		private BindingManagerBase MyBind;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;
		public wgsf()
		{
			//
			// 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()
		{
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(wgsf));
			this.dataGrid1 = new System.Windows.Forms.DataGrid();
			this.statusBar1 = new System.Windows.Forms.StatusBar();
			this.statusBarPanel1 = new System.Windows.Forms.StatusBarPanel();
			this.statusBarPanel2 = new System.Windows.Forms.StatusBarPanel();
			this.statusBarPanel3 = new System.Windows.Forms.StatusBarPanel();
			this.statusBarPanel4 = new System.Windows.Forms.StatusBarPanel();
			this.statusBarPanel5 = new System.Windows.Forms.StatusBarPanel();
			this.statusBarPanel6 = new System.Windows.Forms.StatusBarPanel();
			this.label2 = new System.Windows.Forms.Label();
			this.comboBox1 = new System.Windows.Forms.ComboBox();
			this.label1 = new System.Windows.Forms.Label();
			this.button1 = new System.Windows.Forms.Button();
			this.comboBox2 = new System.Windows.Forms.ComboBox();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel1)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel2)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel3)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel4)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel5)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel6)).BeginInit();
			this.SuspendLayout();
			// 
			// dataGrid1
			// 
			this.dataGrid1.DataMember = "";
			this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
			this.dataGrid1.Location = new System.Drawing.Point(32, 48);
			this.dataGrid1.Name = "dataGrid1";
			this.dataGrid1.Size = new System.Drawing.Size(432, 320);
			this.dataGrid1.TabIndex = 4;
			// 
			// statusBar1
			// 
			this.statusBar1.Location = new System.Drawing.Point(0, 392);
			this.statusBar1.Name = "statusBar1";
			this.statusBar1.Panels.AddRange(new System.Windows.Forms.StatusBarPanel[] {
																						  this.statusBarPanel1,
																						  this.statusBarPanel2,
																						  this.statusBarPanel3,
																						  this.statusBarPanel4,
																						  this.statusBarPanel5,
																						  this.statusBarPanel6});
			this.statusBar1.ShowPanels = true;
			this.statusBar1.Size = new System.Drawing.Size(504, 24);
			this.statusBar1.TabIndex = 5;
			this.statusBar1.Text = "statusBar1";
			// 
			// statusBarPanel1
			// 
			this.statusBarPanel1.Text = "水费";
			// 
			// statusBarPanel2
			// 
			this.statusBarPanel2.Text = "电费";
			// 
			// statusBarPanel3
			// 
			this.statusBarPanel3.Text = "气费";
			// 
			// statusBarPanel4
			// 
			this.statusBarPanel4.Text = "物管费";
			// 
			// statusBarPanel5
			// 
			this.statusBarPanel5.Text = "其他费";
			// 
			// statusBarPanel6
			// 
			this.statusBarPanel6.Text = "合计";
			// 
			// label2
			// 
			this.label2.BackColor = System.Drawing.Color.Transparent;
			this.label2.Location = new System.Drawing.Point(232, 8);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(96, 16);
			this.label2.TabIndex = 9;
			this.label2.Text = "设置查询时间：";
			// 
			// comboBox1
			// 
			this.comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
			this.comboBox1.Items.AddRange(new object[] {
														   "Bh"});
			this.comboBox1.Location = new System.Drawing.Point(48, 24);
			this.comboBox1.Name = "comboBox1";
			this.comboBox1.Size = new System.Drawing.Size(88, 20);
			this.comboBox1.TabIndex = 8;
			// 
			// label1
			// 
			this.label1.BackColor = System.Drawing.Color.Transparent;
			this.label1.Location = new System.Drawing.Point(40, 8);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(96, 16);
			this.label1.TabIndex = 7;
			this.label1.Text = "选择查询条件：";
			this.label1.Click += new System.EventHandler(this.label1_Click);
			// 
			// button1
			// 
			this.button1.BackColor = System.Drawing.Color.Transparent;
			this.button1.Location = new System.Drawing.Point(416, 16);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(75, 24);
			this.button1.TabIndex = 6;
			this.button1.Text = "开始查询";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// comboBox2
			// 
			this.comboBox2.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
			this.comboBox2.Location = new System.Drawing.Point(232, 24);
			this.comboBox2.Name = "comboBox2";
			this.comboBox2.Size = new System.Drawing.Size(136, 20);
			this.comboBox2.TabIndex = 10;
			// 
			// wgsf
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("$this.BackgroundImage")));
			this.ClientSize = new System.Drawing.Size(504, 416);
			this.Controls.Add(this.comboBox2);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.comboBox1);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.statusBar1);
			this.Controls.Add(this.dataGrid1);
			this.Name = "wgsf";
			this.Load += new System.EventHandler(this.wgsf_Load);
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel1)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel2)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel3)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel4)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel5)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.statusBarPanel6)).EndInit();
			this.ResumeLayout(false);
		}
		#endregion
		private void wgsf_Load(object sender, System.EventArgs e)
		{
			string connstr,selectcmd;
			connstr="Provider=Microsoft.jet.oledb.4.0;data source="+Application.StartupPath+"\xqwy.mdb";
			selectcmd="select * from sfb";
		
			OleDbConnection conn=new OleDbConnection(connstr);
			conn.Open();
			OleDbDataAdapter da=new OleDbDataAdapter(selectcmd,conn);
			//OleDbDataAdapter oleDbDataAdapter1=new OleDbDataAdapter(selectcmd,conn);
			DataSet ds=new DataSet();
	
			//DataSet dataSet1=new DataSet();
			da.Fill(ds,"sfb");
			DataTable mytable=new DataTable();
			mytable=ds.Tables[0];
			
			this.dataGrid1.DataSource=mytable;
			this.comboBox2.DataBindings.Add("Text",mytable,"Sfsj");
			zairu();
		}
		public void zairu()
		{
			string sqlstr;
			string 	connstr="Provider=Microsoft.jet.oledb.4.0;data source="+Application.StartupPath+"\xqwy.mdb";
			sqlstr="select Bh from sfb";
			OleDbConnection conn=new OleDbConnection(connstr);
			conn.Open();
			OleDbDataAdapter da=new OleDbDataAdapter(sqlstr,conn);
			DataSet ds=new DataSet();
			da.Fill(ds,"sfb");
			DataTable mytable=new DataTable();
			mytable=ds.Tables[0];
			DataRow myrow;
			
			for(int i=0;i<mytable.Rows.Count;i++)
			{
				myrow=mytable.Rows[i];
				this.comboBox2.Items.Add(myrow[0]);
			}
		}
		public void button1_Click(object sender, System.EventArgs e)
		{
			try
			{
				string connstr,StrSQL;
				connstr="Provider=Microsoft.jet.oledb.4.0;data source="+Application.StartupPath+"\xqwy.mdb";
				if(this.comboBox1.Text=="所有记录")
					StrSQL="SELECT * FROM Sfb";
				StrSQL="SELECT * FROM Sfb WHERE "+this.comboBox1.Text+"='"+this.comboBox2.Text.Trim()+"'";
				
				OleDbConnection conn=new OleDbConnection(connstr);
				conn.Open();
				OleDbDataAdapter da=new OleDbDataAdapter(StrSQL,conn);
				
				DataSet ds=new DataSet();
				
				da.Fill(ds,"sfb");
				
				DataTable mytable=new DataTable();
				
				mytable=ds.Tables[0];
				this.dataGrid1.DataSource=mytable;
				//OleDbCommandBuilder cmdbld=new OleDbCommandBuilder(da);
				//da.Update(mytable);
			}
			catch(Exception Err)
			{
				MessageBox.Show("查询数据集记录操作失败："+Err.Message,"信息提示",
					MessageBoxButtons.OK,MessageBoxIcon.Information);
			
			}				
		}
		private void label1_Click(object sender, System.EventArgs e)
		{
		
		}
	}
}

						