System.Data.Tests.DataTableTest5.MakeParentTable1 C# (CSharp) Method

        private void MakeParentTable1()
        {
            // Create a new Table
            _parentTable1 = new DataTable("ParentTable");
            _dataSet = new DataSet("XmlDataSet");
            DataColumn column;
            DataRow row;

            // Create new DataColumn, set DataType,
            // ColumnName and add to Table.
            column = new DataColumn();
            column.DataType = typeof(int);
            column.ColumnName = "id";
            column.Unique = true;
            // Add the Column to the DataColumnCollection.
            _parentTable1.Columns.Add(column);

            // Create second column
            column = new DataColumn();
            column.DataType = typeof(string);
            column.ColumnName = "ParentItem";
            column.AutoIncrement = false;
            column.Caption = "ParentItem";
            column.Unique = false;
            // Add the column to the table
            _parentTable1.Columns.Add(column);

            // Create third column.
            column = new DataColumn();
            column.DataType = typeof(int);
            column.ColumnName = "DepartmentID";
            column.Caption = "DepartmentID";
            // Add the column to the table.
            _parentTable1.Columns.Add(column);

            // Make the ID column the primary key column.
            DataColumn[] PrimaryKeyColumns = new DataColumn[2];
            PrimaryKeyColumns[0] = _parentTable1.Columns["id"];
            PrimaryKeyColumns[1] = _parentTable1.Columns["DepartmentID"];
            _parentTable1.PrimaryKey = PrimaryKeyColumns;

            _dataSet.Tables.Add(_parentTable1);

            // Create three new DataRow objects and add 
            // them to the DataTable
            for (int i = 0; i <= 2; i++)
            {
                row = _parentTable1.NewRow();
                row["id"] = i + 1;
                row["ParentItem"] = "ParentItem " + (i + 1);
                row["DepartmentID"] = i + 1;
                _parentTable1.Rows.Add(row);
            }
        }