So with the Selected Index it would become something like; Generally using string comparisons should only be done when anything "strong" like an int comparison or even better an enum comparison is not possible.
My code: private void cmb Status_Validating(object sender, System.
Doing so can cause your application or the operating system to stop responding.
This means that as a programmer, you have the power to supply the exact pattern for the input you desire in any text input field. Again, certain special characters are obviously not allowed.
They make use of a pattern matching system to match the input with a certain pattern of data.
NET version and things you're using as binding is alot easier in WPF then in the old windows form (in my opinion).
You can use the Selected Text property to retrieve or change the currently selected text in a Combo Box control.This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form.For help clarifying this question so that it can be reopened, visit the help center.I have 6 combo boxes in c# form that all fill from database from same column.i-e for making student result combo boxes fill subject names.Figure 1 - These objects will determine if all our data is valid or not. Clear() 'Clear Text Box Name Valid = False 'Boolean = False Else Name Valid = True 'Everything Fine End If End Sub Easy one to start with. Focus() 'Set Focus To Text Box End If End Sub Private Sub txt Email_Lost Focus(sender As Object, e As System. Lost Focus Validate Email() 'Check Email Validity End Sub The expression may look horrible to the layman's eye, but look closer. To check if the user has entered an email that actually exists, you will have to find a different way such as to send a of some sorts.