VBA CBool Function in Excel

VBA CBool Function in Excel is categorizes as a Data Type Conversion function. It is a built-in function in Excel VBA. This VBA CBool function converts an expression to a Boolean data type.

This function use in either procedure or function in a VBA editor window in Excel. We can use this VBA CBool Function in any number of times in any number of procedures or functions. In the following section you learn many topics. Like what is the syntax and parameters of the CBool function, where we can use this VBA CBool Function and it’s real-time examples.

Syntax of VBA CBool Function:

The syntax of the CBool Function in VBA is

CBool(Expression)

The CBool function returns a Boolean data type value. The value is either True or False.

Note:
1. Returns True: For Non zero values and True string.
2. Returns False: For zero values and False string.

Parameters or Arguments:

The CBool function has one argument in Excel VBA.
where
Expression:It is a mandatory argument. An expression argument represents a numeric or string value. It is used to convert the value or string to a Boolean value. If the expression is a string, returns an error.

Where we can apply or use VBA CBool Function?

We can use this CBool Function in VBA MS Office 365, MS Excel 2016, MS Excel 2013, 2011, Excel 2010, Excel 2007, Excel 2003, Excel 2016 for Mac, Excel 2011 for Mac, Excel Online, Excel for iPhone, Excel for iPad, Excel for Android tablets and Excel for Android Mobiles.

Example 1: Convert a Value(0) to Boolean

Here is a simple example of the VBA CBool function. This below example converts a value ‘0’ to a boolean. It returns False as output.

'Convert a Value(0) to Boolean
Sub VBA_CBool_Function_Ex1()

    'Variable declaration
    Dim iValue As Integer
    Dim bResult As Boolean
    
    iValue = 0
        
    bResult = CBool(iValue)
        
    MsgBox "The value(0) in Boolean is : " & bResult, vbInformation, "VBA CBool Function"
    
End Sub

Output: Here is the screen shot of the first example output.
VBA CBool Function

Example 2: Convert a Value(-10) to Boolean

Here is a simple example of the VBA CBool function. This below example converts a value ‘-10’ to a boolean. It returns True as output.

'Convert a Value(-10) to Boolean
Sub VBA_CBool_Function_Ex2()

    'Variable declaration
    Dim iValue As Integer
    Dim bResult As Boolean
    
    iValue = -10
        
    bResult = CBool(iValue)
        
    MsgBox "The value(-10) in Boolean is : " & bResult, vbInformation, "VBA CBool Function"
    
End Sub

Output: Here is the screen shot of the second example output.
VBA CBool Function

Example 3: Convert a String(True) to Boolean

Here is a simple example of the VBA CBool function. This below example function converts given expression ‘True’ to a Boolean value.

'Convert a String(True) to Boolean
Sub VBA_CBool_Function_Ex3()

    'Variable declaration
    Dim iValue
    Dim bResult As Boolean
    
    iValue = True
        
    bResult = CBool(iValue)
        
    MsgBox "The string(True) in Boolean is : " & bResult, vbInformation, "VBA CBool Function"
    
End Sub

Output: Here is the screen shot of the third example output.
VBA CBool Function

Example 4: Convert a String(False) to Boolean

Here is a simple example of the VBA CBool function. This below example function converts given expression ‘False’ to a Boolean value.

'Convert a String(False) to Boolean
Sub VBA_CBool_Function_Ex4()

    'Variable declaration
    Dim iValue
    Dim bResult As Boolean
    
    iValue = False
        
    bResult = CBool(iValue)
        
    MsgBox "The string(False) in Boolean is : " & bResult, vbInformation, "VBA CBool Function"
    
End Sub

Output: Here is the screen shot of the fourth example output.
VBA CBool Function

Example 5: Convert a String(“Example”) to Boolean(Type mismatch)

Here is a simple example of the VBA CBool function. This below example converts an expression to a boolean value. It returns type mismatch error. Because, we can’t convert string value to Boolean.

'Convert a String("Example") to Boolean(Type mismatch)
Sub VBA_CBool_Function_Ex5()

    'Variable declaration
    Dim iValue As String
    Dim bResult As Boolean
    
    iValue = "Example"
        
    bResult = CBool(iValue)
        
    MsgBox "The String('Example') in Boolean is : " & bResult, vbInformation, "VBA CBool Function"
    
End Sub

Output: Here is the screen shot of the fifth example output.
VBA CBool Function

Instructions to Run VBA Macro Code or Procedure:

You can refer the following link for the step by step instructions.

Instructions to run VBA Macro Code

Other Useful Resources:

Click on the following links of the useful resources. These helps to learn and gain more knowledge.

VBA Tutorial VBA Functions List VBA Arrays in Excel Blog

VBA Editor Keyboard Shortcut Keys List VBA Interview Questions & Answers

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