Merge Case 5: Absolutely Different Table Structures

Merge Case 5: Absolutely Different Table Structures

In this case, the two table structures have nothing in common. All the columns differ

2) create the different  column

DataTable ftb = new DataTable();

DataTable stb = new DataTable();

ftb.Columns.Add("Sno", typeof(Int32));

ftb.Columns.Add("Sname", typeof(String));

ftb.PrimaryKey = new DataColumn[] { ftb.Columns["Sno"] };

stb.Columns.Add("Smark", typeof(Int32));

stb.Columns.Add("Sgrade", typeof(String));

3)write the code

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Data.OleDb; namespace WindowsFormsApplication15 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } DataTable ftb = new DataTable(); DataTable stb = new DataTable(); private void Form1_Load(object sender, EventArgs e) { ftb.Columns.Add("Sno", typeof(Int32)); ftb.Columns.Add("Sname", typeof(String)); // ftb.PrimaryKey = new DataColumn[] { ftb.Columns["Sno"] }; ftb.LoadDataRow(new object[] { "1", "Ashish" }, true); ftb.LoadDataRow(new object[] { "2", "KAMAL" }, true); ftb.LoadDataRow(new object[] { "3", "Mohit" }, true); ftb.LoadDataRow(new object[] { "4", "Aditya" }, true); stb.Columns.Add("Smark", typeof(Int32)); stb.Columns.Add("Sgrade", typeof(string)); stb.LoadDataRow(new object[] { "480", "I" }, true); stb.LoadDataRow(new object[] { "255", "II" }, true); stb.LoadDataRow(new object[] { "295", "II" }, true); stb.LoadDataRow(new object[] { "380", "I" }, true); dataGridView1.DataSource = ftb; dataGridView2.DataSource = stb; } private void button1_Click(object sender, EventArgs e) { ftb.Merge(stb); dataGridView3.DataSource=ftb; dataGridView1.Visible = false; dataGridView2.Visible = false; dataGridView3.Visible =true; label1.Text = "After Merging"; label2.Visible = false; } } }

4)Run the program