// Save button for the suppliers tab
private void btnSaveSupplier_Click(object sender, EventArgs e)
{
string selectedSup = lstSupplierList.GetItemText(lstSupplierList.SelectedItem);
string editedSup = txtModifySupplier.Text;
// Validation to see if the typed item is already in the list
int index = lstSupplierList.FindString(editedSup, -1);
if (editedSup != "" && index != -1)
{
MessageBox.Show("Warning: Supplier already exists.", "Duplicate Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
// Test for saving or editing
if (lstSupplierList.Enabled == false && editedSup != "")
{
DialogResult result = MessageBox.Show("Save '" + editedSup + "' as a new supplier?", "Confirm Add",
MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation);
if (result == DialogResult.OK)
{
SupplierDB.AddSupplierName(editedSup);
this.frmModifyProductSupplier_Load(this, null);
// Select the item that was just saved
SelectItem(editedSup, lstSupplierList);
}
}
else if (lstSupplierList.Enabled == false && editedSup == "")
{
MessageBox.Show("Please enter a new supplier name.", "Entry Error",
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
txtModifySupplier.Focus();
}
else if (lstSupplierList.Enabled == true && selectedSup != editedSup)
{
DialogResult update =
MessageBox.Show("Change '" + selectedSup + "' to '" + editedSup + "'?"
, "Confirm Change", MessageBoxButtons.OKCancel, MessageBoxIcon.Question);
if (update == DialogResult.OK)
{
SupplierDB.UpdateSupplier(selectedSup, editedSup);
// Refresh table adapter to display updated list
this.frmModifyProductSupplier_Load(this, null);
lstSupplierList.GetItemText(lstSupplierList.SelectedItem);
// Select the item that was just updated
SelectItem(editedSup, lstSupplierList);
}
}
else if (lstSupplierList.Enabled == true && selectedSup == "")
{
MessageBox.Show("Please select a supplier name to edit.", "Item Not Selected",
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
txtModifySupplier.Focus();
}
}
}