What is a Variant variable VBA?
What is a Variant variable VBA?
A VBA Variant is a VBA variable that has not been declared to have a specific data type. It can therefore hold any type of data that VBA variables are able to hold – be it text, numbers, dates, time or objects.
How do you declare a variable as Variant in VBA?
- Sub strExample()
- ‘declare the variants.
- Dim strName As Variant.
- Dim rng As Variant.
- ‘populate the variables.
- strName = “Fred Smith”
- Set rng = Sheets(1). Range(“A1”)
- ‘populate the sheet.
What does dim as Variant mean in VBA?
Dim is short for the word Dimension and it allows you to declare variable names and their type. Dim is often found at the beginning of macro codes and has the following format: Dim [Insert Variable Name] as [Insert Variable Type]
What are the different variables in VBA?
Variable Data Types
- Integer: Used to store number values that won’t take on decimal form.
- Single: Used to store number values that may take on decimal form.
- Double: A longer form of the single variable.
- Date: Stores date values.
- String: Stores text.
- Boolean: Used to store binary results (True/False, 1/0)
What is difference between string and Variant?
The variant has a special sub type called string-variant that can be used to hold variable-length strings. This data type uses 22 bytes plus the length of the string. This data type is much larger than a normal variable-length string. The string-variant data type can contain the same as a variable-length string.
What is Variant in VB?
The variant data type can be used to define variables that contain any type of data. A tag is stored with the variant data to identify the type of data that it currently contains. You can examine the tag by using the VarType function.
What is Variant variable in VB?
A Variant is a special data type that can contain any kind of data except fixed-length String data. (Variant types now support user-defined types.) A Variant can also contain the special values Empty, Error, Nothing, and Null.
What does ReDim do in VBA?
The ReDim statement is used to size or resize a dynamic array that has already been formally declared by using a Private, Public, or Dim statement with empty parentheses (without dimension subscripts). You can use the ReDim statement repeatedly to change the number of elements and dimensions in an array.
What is difference between string and variant?
What are variable data types?
A variable’s type determines the values that the variable can have and the operations that can be performed on it. For example, the declaration int count declares that count is an integer ( int ). Primitive types contain a single value and include types such as integer, floating point, character, and boolean.
What is the difference between variant and string in VBA?
The variant has a special sub type called string-variant that can be used to hold variable-length strings. This data type is much larger than a normal variable-length string. The string-variant data type can contain the same as a variable-length string.
What are the pros and cons of VBA variant?
Pros & Cons of Excel VBA Variant 1 We can replace most of the data types with a single data type Variant. 2 VBA Variant is easy as using Integer or Long or String data types for declaring variables. 3 This saves time in thinking which type of data type we need to choose for variable declaration.
How is the variant data type specified in VBA?
The Variant data type is automatically specified if you don’t specify a data type when you declare a constant, variable, or argument. Variables declared as the Variant data type can contain string, date, time, Boolean, or numeric values, and can convert the values that they contain automatically.
How are data types promoted in a variant?
However, if an arithmetic operation is performed on a Variant containing a Byte, an Integer, a Long, or a Single, and the result exceeds the normal range for the original data type, the result is promoted within the Variant to the next larger data type.
What does empty mean in variant data type?
The value Empty denotes a Variant variable that hasn’t been initialized (assigned an initial value). A Variant containing Empty is 0 if it is used in a numeric context, and a zero-length string (“”) if it is used in a string context.