DataSet ds = new DataSet();
int count = ds.Tables["테이블명"].Rows.Count;
if (count == 0)
{
dataGrid1.DataSource = ds;
dataGrid1.DataMember = "테이블명";
dataGrid1.Refresh();
MessageBox.Show("검색 데이터가 없습니다", "확인");
}
else
{
DataRow row = ds.Tables[0].Rows[0];
dataGridView1.DataSource = ds;
dataGridView1.DataMember = "테이블명";
}
출처 : http://blog.naver.com/hjc426/130027312443