A nested If or ElseIf statement inside another If or ElseIf statement(s). The inner If statements are executed based on the outermost If statements. This enables VBScript to handle complex conditions with ease.
Syntax
Following is the syntax of a Nested If statement in VBScript.
If(boolean_expression) Then
Statement 1
.....
.....
Statement n
If(boolean_expression) Then
Statement 1
.....
.....
Statement n
ElseIf (boolean_expression) Then
Statement 1
.....
....
Statement n
Else
Statement 1
.....
....
Statement n
End If
Else
Statement 1
.....
....
Statement n
End If
Example
For demo purpose, let us find the type of a positive number with the help of a function.
Private Sub nested_if_demo_Click()
Dim a As Integer
a = 23
If a > 0 Then
MsgBox "The Number is a POSITIVE Number"
If a = 1 Then
MsgBox "The Number is Neither Prime NOR Composite"
ElseIf a = 2 Then
MsgBox "The Number is the Only Even Prime Number"
ElseIf a = 3 Then
MsgBox "The Number is the Least Odd Prime Number"
Else
MsgBox "The Number is NOT 0,1,2 or 3"
End If
ElseIf a < 0 Then
MsgBox "The Number is a NEGATIVE Number"
Else
MsgBox "The Number is ZERO"
End If
End Sub
When the above code is executed, it produces the following result.
The Number is a POSITIVE Number The Number is NOT 0,1,2 or 3
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