I have a simple windows application that pops up an input box for users to enter in a date to do searches.
How do I identify if the user clicked on the Cancel button, or merely pressed OK without entering any data as both appear to return the same value?
I have found some examples of handling this in VB 6 but none of them really function in the .NET world.
Ideally I would like to know how to handle the empty OK and the Cancel seperately, but I would be totally ok with just a good way to handle the cancel.
Here is what I did and it worked perfectly for what I was looking to do:
Dim StatusDate As String StatusDate = InputBox("What status date do you want to pull?", "Enter Status Date", " ") If StatusDate = " " Then MessageBox.Show("You must enter a Status date to continue.") Exit Sub ElseIf StatusDate = "" Then Exit Sub End If
This key was to set the default value of the input box to be an actual space, so a user pressing just the OK button would return a value of " " while pressing cancel returns ""
From a usability standpoint, the defaulted value in the input box starts highlighted and is cleared when a user types so the experience is no different than if the box had no value.