This "IF THEN" thing is driving me %$#@#!@!

[Delta34]

I’ve been taking the “Visual Basic 6.0 step by step” learning addition course, and thought I would branch off on my own, and try a little code using the “If Then” statement. Using what looked like very simple code, I kept getting this annoying “End without If “ message. I finally removed the “End If” statement and the sample code ran fine. The book doesn’t seem to address when to use the “End If” statement. So consequently, I never figured out why this was happening. So here I am, a couple of weeks later, I’m trying to do a tutorial on “Visual Basic and Data Bases”, as soon as I saw the block of code with the “If Then.. End If” statement I knew I was in trouble, and sure enough I had problems.
Can anybody help me out here??
Here is the block of code from the tutorial:

Dim S as string, I as Integer
For I = 0 to 4
If txtInput(I).text = “” Then _
MsgBox “Each box must have an entry!”, vbInformation + vbOKOnly, “Error”
Exit Sub
End If
Next I
End Sub

[mystiq]

It seems you got some things mixed up.

When you use the _ or see it, it means that its taking whatever is on the very next line, and tacking it on to the current line

Such as:
If _
a = _
1 then _

is the equivalent of:
If a = 1 then

By using:
If txtInput(I).text = “” Then _
MsgBox “Each box must have an entry!”, vbInformation + vbOKOnly, “Error”
Exit Sub
End If

You are saying
If txtInput(I).text = "" Then MsgBox “Each box must have an entry!”, vbInformation + vbOKOnly, “Error”
Exit Sub
End If

If you copied it from a book, either the book is wrong, or look again.
A little note on if thens, and this'll explain the error. A single line if then, is just that, a single line, and it requires no End If, in fact if you gave it an End If, it'll give you "End If without block If". Likewise if you had an If without and End If, guess what the error would be. You used a single line if then by accident using the _, and you made VB think you are using a single-line if then, and it knows that doesn't need an End If. In any case, the correct code is:

Dim S as string, I as Integer
For I = 0 to 4
If txtInput(I).text = “” Then
MsgBox “Each box must have an entry!”, vbInformation + vbOKOnly, “Error”
Exit Sub
End If
Next I
End Sub

Thats a multi line if then, and it does require an End If, or else VB wouldn't know where it ended.

------------------
-Mystiq