DataSet Merge event : DataSet « ADO.Net « C# / CSharp Tutorial

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C# / CSharp Tutorial » ADO.Net » DataSet 
32.35.5.DataSet Merge event
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.OleDb;

public class MainClass {
  public static void Main(){
    OleDbConnection conn = new OleDbConnection();
    string strDSN = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\Northwind.mdb";
    conn.ConnectionString = strDSN;
    conn.Open();

    string sql = "SELECT * FROM orders ";
    OleDbDataAdapter da = new OleDbDataAdapter(sql, conn);
    DataSet ds1 = new DataSet("ds1");
    da.Fill(ds1);

    sql = "SELECT * FROM Customers ";
    da = new OleDbDataAdapter(sql, conn);
    DataSet ds2 = new DataSet("ds2");
    da.Fill(ds2);

    ds1.MergeFailed += new MergeFailedEventHandler(OnMergeFailed);

    ds1.Merge(ds2);
  }

  protected static void OnMergeFailed  (object sender, MergeFailedEventArgs args)
  {
    MessageBox.Show(args.Conflict.ToString());
  }
}
32.35.DataSet
32.35.1.Simple Query Dataset
32.35.2.Fill a DataSet
32.35.3.Find Rows In Data
32.35.4.Load XML to DataSet
32.35.5.DataSet Merge event
32.35.6.Merge two DataSet
32.35.7.Creating a Strongly Typed DataSet
32.35.8.DataSet Read with SqlDataAdapter
32.35.9.DataSet.DataTable count
32.35.10.DataSet.DataTable name
32.35.11.Mapping Table and Column Names Between a Data Source and DataSet
32.35.12.Retrieving Schema and Constraints for a DataSet
32.35.13.Read schema and reload data with DataSet
32.35.14.Navigating Between Parent and Child Tables in an Untyped DataSet
32.35.15.Multitabled DataSet App
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