//search for id and alphaet
private void txtSearch_TextChanged(object sender, EventArgs e)
{
if(string.IsNullOrEmpty(txtSearch.Text))
{
LoadProductInfoByDelFlag(0);
return;
}
int n = 0;
if(char.IsLetter(txtSearch.Text[0]))
{
//the first text is alphaet
n = 1;
}
else
{
//the first is number
n = 2;
}
ProductInfoBLL bll = new ProductInfoBLL();
dgvProduct.AutoGenerateColumns = false;
dgvProduct.DataSource = bll.GetProductInfoBySpellOrNum(txtSearch.Text, n);
if(dgvProduct.SelectedRows.Count > 0)
{
dgvProduct.SelectedRows[0].Selected = false;
}
}
