using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
using System.Data.OleDb;
public class OleDbDataAdapterSqlDataAdapter : System.Windows.Forms.Form
{
private System.Windows.Forms.Button OleDbDataAdapter;
private System.Windows.Forms.Button SqlDataAdapter;
private System.Windows.Forms.DataGrid dataGrid1;
private System.ComponentModel.Container components = null;
public OleDbDataAdapterSqlDataAdapter()
{
InitializeComponent();
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
private void InitializeComponent()
{
this.OleDbDataAdapter = new System.Windows.Forms.Button();
this.SqlDataAdapter = new System.Windows.Forms.Button();
this.dataGrid1 = new System.Windows.Forms.DataGrid();
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// OleDbDataAdapter
//
this.OleDbDataAdapter.Location = new System.Drawing.Point(16, 16);
this.OleDbDataAdapter.Name = "OleDbDataAdapter";
this.OleDbDataAdapter.Size = new System.Drawing.Size(136, 32);
this.OleDbDataAdapter.TabIndex = 0;
this.OleDbDataAdapter.Text = "OleDb DataAdapter";
this.OleDbDataAdapter.Click += new System.EventHandler(this.OleDbDataAdapter_Click);
//
// SqlDataAdapter
//
this.SqlDataAdapter.Location = new System.Drawing.Point(176, 16);
this.SqlDataAdapter.Name = "SqlDataAdapter";
this.SqlDataAdapter.Size = new System.Drawing.Size(168, 32);
this.SqlDataAdapter.TabIndex = 1;
this.SqlDataAdapter.Text = "SQL DataAdapter";
this.SqlDataAdapter.Click += new System.EventHandler(this.SqlDataAdapter_Click);
//
// dataGrid1
//
this.dataGrid1.DataMember = "";
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(16, 72);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(408, 192);
this.dataGrid1.TabIndex = 2;
//
// OleDbDataAdapterSqlDataAdapter
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(440, 273);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.dataGrid1,
this.SqlDataAdapter,
this.OleDbDataAdapter});
this.Name = "OleDbDataAdapterSqlDataAdapter";
this.Text = "OleDbDataAdapterSqlDataAdapter";
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new OleDbDataAdapterSqlDataAdapter());
}
private void OleDbDataAdapter_Click(object sender, System.EventArgs e)
{
string ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=c:\Northwind.mdb";
string SQL = "SELECT * FROM Customers";
OleDbConnection conn = new OleDbConnection(ConnectionString);
conn.Open();
OleDbDataAdapter adapter = new OleDbDataAdapter();
adapter.SelectCommand = new OleDbCommand(SQL, conn);
DataSet ds = new DataSet("Customers");
adapter.Fill(ds, "Customers");
adapter.DeleteCommand = new OleDbCommand("DELETE * FROM Customers");
adapter.Update(ds, "Customers");
dataGrid1.DataSource = ds.DefaultViewManager;
}
private void SqlDataAdapter_Click(object sender, System.EventArgs e)
{
string ConnectionString ="Integrated Security=SSPI;" +
"Initial Catalog=Northwind;" +
"Data Source=localhost;";
string SQL = "SELECT CustomerID, CompanyName FROM Customers";
SqlConnection conn = new SqlConnection(ConnectionString);
conn.Open();
SqlDataAdapter adapter = new SqlDataAdapter(SQL, conn);
DataSet ds = new DataSet("Customers");
adapter.Fill(ds);
dataGrid1.DataSource = ds.DefaultViewManager;
}
}
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