private void btnCategoryAdd_Click(object sender, EventArgs e)
{
if (txtSupplierName.Text != "")
{
if (SupplierRepo.checkIfSupplierExists(txtSupplierName.Text))
{
MessageBox.Show("Supplier already exists.");
}
else
{
double num;
bool b = double.TryParse(txtContactNumber.Text, out num);
if (b)
{
SupplierRepo.insert(Guid.NewGuid(), txtSupplierName.Text, txtAddress.Text, double.Parse(txtContactNumber.Text));
fillListView();
clearAll();
MessageBox.Show("Supplier has been added.");
}
else
{
MessageBox.Show("Invalid contact number");
}
}
}
else
{
MessageBox.Show("Supplier name must not be empty");
}
}