public frm_ChonBanh(frm_DonHang parent)
{
InitializeComponent();
DataColumn column;
column = new DataColumn();
column.DataType = typeof(int);
column.ColumnName = "MSB";
tableBanh.Columns.Add(column);
var key = new DataColumn[1];
key[0] = column;
column = new DataColumn();
column.DataType = typeof(string);
column.ColumnName = "TENBANH";
tableBanh.Columns.Add(column);
column = new DataColumn();
column.DataType = typeof(int);
column.ColumnName = "GIA";
tableBanh.Columns.Add(column);
column = new DataColumn();
column.DataType = typeof(int);
column.ColumnName = "SOLUONG";
tableBanh.Columns.Add(column);
tableBanh.PrimaryKey = key;
this.parent = parent;
}
private void donHangToolStripMenuItem_Click(object sender, EventArgs e)
{
if (Application.OpenForms["frm_DonHang"] == null)
{
frm_DonHang nv = new frm_DonHang();
nv.MdiParent = this;
nv.Show();
}
else
{
Application.OpenForms["frm_DonHang"].Activate();
}
}