Objective of VBA IsObject Function
VBA IsObject function is categorized as an Information function in VBA. It is a built-in function in MS Office Excel VBA. This function checks specified variable is an object or not. It has one input(Expression) parameter. It has one parameter. It returns a Boolean value (True or False). The IsObject function can be used only in VBA. We can’t use this function as a worksheet function. This function can be used in either procedure or function in a VBA editor window in Excel. We can use this VBA IsObject function any number of times in any number of procedures or functions. In the following section we learn what is the syntax and parameters of the IsObject function, where we can use this VBA IsObject function and real-time examples.
- Objective of VBA IsObject Function
- Syntax of VBA IsObject Function
- Parameters or Arguments
- Where we can apply or use VBA IsObject Function?
- Example 1: Check specified expression(undeclared variable) is object or not
- Example 2: Check specified expression(declared variable) is object or not
- Example 3: Check specified expression(variable set to an object) is object or not
- Example 4: Check specified expression is object(variable set to Nothing) or not
- Instructions to use Macro Codes
Syntax of VBA IsObject Function
The syntax of the VBA IsObject function is
IsObject(Expression)
The VBA IsObject function returns a Boolean value.
Parameters or Arguments
The IsObject function has one input parameter or argument.
Where
Expression: It is a required parameter. The argument an Expression that you want to evaluate.
Where we can apply or use VBA IsObject Function?
We can use this VBA IsObject function in 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: Check specified expression(undeclared variable) is object or not
Here is a simple example of the VBA IsObject function. This below example checks the specified undeclared variable is an object on not. The output of below macro is False.
'Check specified expression is object or not Sub VBA_IsObject_Function_Ex1() 'Variable declaration Dim iExpression As Integer Dim sOutput As Boolean sOutput = IsObject(iExpression) 'Display output message MsgBox "The expression is object or not : " & sOutput, vbInformation, "VBA IsObject Function" End Sub
Output: Here is the screen shot of the first example output.
Example 2: Check specified expression(declared variable) is object or not
Here is another example of the VBA IsObject function. This below example checks the specified declared variable is an object on not. The output of below macro is TRUE.
'Check specified expression is object or not Sub VBA_IsObject_Function_Ex2() 'Variable declaration Dim iExpression As Object Dim sOutput As Boolean sOutput = IsObject(iExpression) 'Display output message MsgBox "The expression is object or not : " & sOutput, vbInformation, "VBA IsObject Function" End Sub
Output: Here is the screen shot of the second example output.
Example 3: Check specified expression(variable set to an object) is object or not
Here is a simple example of the VBA IsObject function. This below example checks the specified variable set to an object is an object on not. The output of below macro returns False.
'Check specified expression is object or not Sub VBA_IsObject_Function_Ex3() 'Variable declaration Dim iExpression As Worksheet Dim sOutput As Boolean Set iExpression = Sheets("Sheet1") sOutput = IsObject(iExpression) 'Display output message MsgBox "The expression is object or not : " & sOutput, vbInformation, "VBA IsObject Function" End Sub
Output:Here is the screen shot of the third example output.
Example 4: Check specified expression is object(variable set to Nothing) or not
Here is a simple example of the VBA IsObject function. This below example checks the specified variable is an object on not. The output of below macro is False.
'Check specified expression is object or not Sub VBA_IsObject_Function_Ex4() 'Variable declaration Dim iExpression Dim sOutput As Boolean Set iExpression = Nothing sOutput = IsObject(iExpression) 'Display output message MsgBox "The expression is object or not : " & sOutput, vbInformation, "VBA IsObject Function" End Sub
Output: Here is the screen shot of the fourth example output.
Instructions to use Macro Codes
Here are the step by step instructions to use the VBA IsObject function in Excel VBA.
- Open an Excel workbook.
- Press Alt+F11 to open VBA Editor window.
- Go to Insert menu and click on module from the available options.
- Copy above specified macros to the VBA editor.
- Select any procedure from above codes and click on ‘Run’ command or use Keyboard shortcut ‘F5’.
List of VBA Functions:
Please click on below link to go back to see all List of VBA Functions.