Reputation: 141
I have several textboxes and users are entering same data in one of these fields. I have another table which is store machine_no. I would like to restrict user for possible wrong entries. Example if there is no machine_no #4 on table, user will be warn with message box.
Machine_no Value1 In first day
1 500
2 400
3 600
Machine_no Value1 second day
1 8678
2 45645
3 54645
Thanks in advance
Upvotes: 0
Views: 112
Reputation: 440
You could use a NumericUpDown control to let the user enter only integers and validate against a generic List of integers or an array of integers (you can load the list with the existing machine numbers on your data base table), and finally you can use ErrorProvider control to show a warning to the user if enters a not valid number.
Upvotes: 0
Reputation: 135938
If you really want to restrict the available choices, I'd replace the free form textbox with a dropdown list of choices populated from your table.
Upvotes: 1