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by  |  18-May-2018 02:31

You should always use the Validating event, it was made to support validation.

If not to prevent the focus change then at least for the Causes Validation property.

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Hello, First off im not expecting anyone to do my homework i just wanted pointed in the right direction. Clear() 'This Line is to say that it will loop until it hits the seventh floor For level Count Short = 1 To 7 occupied Short = CShort(Input Box("Enter the amount of occupied rooms on floor " & level Count Short, "Occupied Rooms", )) 'this loop is to check to make sure there was a number put into the input box Do While occupied Short The return from an Input Box is ALWAYS a string.

I have worked on this program for QUITE A WHILE and all i need to do to make it a good program is to figure out a way to validate the data to make sure that if someone clicks the cancel button or if someone leaves an Input box blank the program doesnt crash. Click 'Declare Variables Dim level Count Short As Short = 1S Dim occupied Short As Short = 1S Dim vacant Short As Short = 0S Dim total Vacant Short = 0S Dim total Occupiedshort As Short = 0S Dim total Room Short As Short = 0S Dim occupancy Percentage Decimal As Decimal = 0D 'this is to clear the list box if the program is needed to be ran again. As you have found out, CShort will throw an exception if it can't convert the string to a number (this will happen if somebody enters something other than a number, as well as if they enter nothing or hit Cancel).

You may not have covered this yet, but it is also a horrible solution in this case, because catching exceptions is costly in terms of speed, so you should only do so if you have no alternative. Click Dim str Input As String Dim int Input As Short Do str Input = Input Box("Enter the amount of occupied rooms on floor ", "Occupied Rooms", ) If str Input = String.

the instuctions for the assignment is to use Input Boxes(IF it were me, and im still just learning, i would think just using a regular text box would be easier) . Try Parse(Input Box("Enter the amount of occupied rooms on floor " & level Count Short, "Occupied Rooms"))(occupied Short) tried it like this and it doesnt underline occupied Short.. but it doesnt accept that statement To validate Input Box 1- Get the input in a string variable 2- Check if the variable contains empty string, if so then Cancel pressed, exit the loop 3- If it is not empty, try to parse and act accordingly Here is a generic example Private Sub Button1_Click(By Val sender As System. Empty Then Exit Do ' cancel pressed, so exit the loop. Try Parse(str Input, int Input) = False Or Else int Input The problem you were having was that you had too many close parenthesis. Try Parse(Input Box("Enter the amount of occupied rooms on floor " & level Count Short, "Occupied Rooms", ))occupied Short) you needed: Short.

But validating only on the client will let even a slightly technical user simply avoid the validation (Or worse.

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