Following logical operators are supported by VBA.
Assume variable A holds 10 and variable B holds 0, then −
| Operator | Description | Example |
|---|---|---|
| AND | Called Logical AND operator. If both the conditions are True, then the Expression is true. | a<>0 AND b<>0 is False. |
| OR | Called Logical OR Operator. If any of the two conditions are True, then the condition is true. | a<>0 OR b<>0 is true. |
| NOT | Called Logical NOT Operator. Used to reverse the logical state of its operand. If a condition is true, then Logical NOT operator will make false. | NOT(a<>0 OR b<>0) is false. |
| XOR | Called Logical Exclusion. It is the combination of NOT and OR Operator. If one, and only one, of the expressions evaluates to be True, the result is True. | (a<>0 XOR b<>0) is true. |
Example
Try the following example to understand all the Logical operators available in VBA by creating a button and adding the following function.
Private Sub Constant_demo_Click()
Dim a As Integer
a = 10
Dim b As Integer
b = 0
If a <> 0 And b <> 0 Then
MsgBox ("AND Operator Result is : True")
Else
MsgBox ("AND Operator Result is : False")
End If
If a <> 0 Or b <> 0 Then
MsgBox ("OR Operator Result is : True")
Else
MsgBox ("OR Operator Result is : False")
End If
If Not (a <> 0 Or b <> 0) Then
MsgBox ("NOT Operator Result is : True")
Else
MsgBox ("NOT Operator Result is : False")
End If
If (a <> 0 Xor b <> 0) Then
MsgBox ("XOR Operator Result is : True")
Else
MsgBox ("XOR Operator Result is : False")
End If
End Sub
When you save it as .html and execute it in the Internet Explorer, then the above script will produce the following result.
AND Operator Result is : False OR Operator Result is : True NOT Operator Result is : False XOR Operator Result is : True
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