//search
private void button2_Click(object sender, EventArgs e)
{
string sKeyword = txtKeyword.Text.Trim();
if (sKeyword == null || sKeyword == string.Empty || sKeyword.Length == 0) // tìm tất cả
{
List <MonAnDTO> listMonAn = maBUS.select();
this.loadData_Vao_GridView(listMonAn);
}
else
{
List <MonAnDTO> listMonAn = maBUS.selectByKeyWord(sKeyword);
this.loadData_Vao_GridView(listMonAn);
}
}