DataGrid实例（简单易懂，无复杂功能，适合初学者）

使ACCESS数据库，适合初学者，修改连接、查询语句后可直接运行，代码中有注明。

填充DataSet的步骤
１、使用数据库连接字符串创建数据库连接对象
２、用SQL查询语句和数据库连接对象创建数据库适配器dataAdapter
３、使用DataAdapter的Fill 方法填充DataSet


using System;


using System.Windows.Forms;


using System.Data;


using System.Data.SqlClient;


using System.Data.OleDb;


//Professional C# 2nd的DATAGRID实例




/**//**//**//// <summary>


/// This class provides an example of creating and using a data grid.


/// </summary>


public class DisplayTabularData : System.Windows.Forms.Form




...{


private System.Windows.Forms.Button retrieveButton;


private System.Windows.Forms.DataGrid dataGrid;






/**//**//**//// <summary>


/// Construct the window.


/// </summary>


/// <remarks>


/// This method constructs the window by creating both the data grid and the button.


/// </remarks>


public DisplayTabularData()




...{


this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);


this.ClientSize = new System.Drawing.Size(464, 253);


this.Text = "01_DisplayTabularData";


this.dataGrid = new System.Windows.Forms.DataGrid();


dataGrid.BeginInit();


dataGrid.Location = new System.Drawing.Point(8, 8);


dataGrid.Size = new System.Drawing.Size(448, 208);


dataGrid.TabIndex = 0;


dataGrid.Anchor = AnchorStyles.Bottom | AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;


this.Controls.Add(this.dataGrid);


dataGrid.EndInit();


this.retrieveButton = new System.Windows.Forms.Button();


retrieveButton.Location = new System.Drawing.Point(384, 224);


retrieveButton.Size = new System.Drawing.Size(75, 23);


retrieveButton.TabIndex = 1;


retrieveButton.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;


retrieveButton.Text = "Retrieve";


retrieveButton.Click += new System.EventHandler(this.retrieveButton_Click);


this.Controls.Add(this.retrieveButton);


}






/**//**//**//// <summary>


/// Retrieve the data


/// </summary>


/// <param name="sender"> </param>


/// <param name="e"> </param>


protected void retrieveButton_Click(object sender, System.EventArgs e)




...{


retrieveButton.Enabled = false;




string source = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and SettingsManioMy DocumentsPrintManagerprogramPrintManageV1DataBasePrintDB.mdb";


string select = "SELECT * FROM MainInfo";






/**//**//**/////////////////////////////////


//填充DataSet的步骤


//１、使用数据库连接字符串创建数据库连接对象


// ２、用SQL查询语句和数据库连接对象创建数据库适配器dataAdapter


// ３、使用DataAdapter的Fill 方法填充DataSet




OleDbConnection OleCon = new OleDbConnection(source);




OleDbDataAdapter da = new OleDbDataAdapter(select,OleCon);




DataSet ds = new DataSet();




da.Fill(ds, "MainInfo");




dataGrid.SetDataBinding(ds, "MainInfo"); //DataGrid的数据绑定，使用DataSet 和　数据库的表名


}






/**//**//**//// <summary>


/// Display the application window


/// </summary>


static void Main()




...{


Application.Run(new DisplayTabularData());


}


}