สอบถามเกี่ยวกับการรวม DataTable หลายๆอัน มาไว้ใน DataTable เดียวซึ่ง Column เหมือนกันหมด

	 private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here

dtg3.DataSource = this.PlusTable(this.DT1(),this.DT2());
dtg3.DataBind();
}

private DataTable DT1()
{
DataTable dt = new DataTable();
dt.Columns.Add("Name");
dt.Columns.Add("LastName");
dt.Columns.Add("Age");
DataRow dr = dt.NewRow();
dr[0] = "n1";
dr[1] = "s1";
dr[2] = "22";
dt.Rows.Add(dr);

dtg1.DataSource = dt;
dtg1.DataBind();

return dt;
}

private DataTable DT2()
{
DataTable dt = new DataTable();
dt.Columns.Add("Pos");
dt.Columns.Add("Des");
dt.Columns.Add("Sal");
DataRow dr = dt.NewRow();
dr[0] = "p1";
dr[1] = "d1";
dr[2] = "22555";
dt.Rows.Add(dr);

dtg2.DataSource = dt;
dtg2.DataBind();

return dt;
}

private DataTable PlusTable(DataTable dt1,DataTable dt2)
{
//Table All colum
DataTable dtAll = new DataTable();

//Colum Begin basic
foreach(DataColumn dc in dt1.Columns)	// insert colum from table1
{
dtAll.Columns.Add(dc.ColumnName);
}
foreach(DataColumn dc in dt2.Columns)	// insert colum from table2
{
dtAll.Columns.Add(dc.ColumnName);
}

//Basic insert Data for row
DataRow dr = dtAll.NewRow();
dr[0] = "a1";
dr[1] = "b1";
dr[2] = "c1";
dr[3] = "d1";
dr[4] = "e1";
dr[5] = "f1";
dtAll.Rows.Add(dr);

return dtAll;	// Return DataTable for DtaGrid or Object
}