---
url: >-
  /statelake/scripting-reference/functions-and-procedures/variant-functions/vartype.md
---

# VarType

The function **VarType** tests a **variant** to determine what data type its value is.

For more information about **variant** data types including the current list of available data types, please review [TVarType](/statelake/scripting-reference/data-types/enumerations/tvartype).

This is more commonly used with **variant** type variables, rather than fields - when accessing fields you can achieve the same thing by using the **Field.FieldType** property as illustrated below.

**Declaration**: Function VarType(const V : Variant) : TVarType;

An example.

```pascal
procedure OnMapEvent(var Value:Variant);
begin
 if VarType(Field.Value) = varOleStr then
    Value := Field.Value;
end;
```

The function can also be used to good effect the following way to return the data type value.

```pascal
procedure ScriptEvent (var Value : variant);
var
  Str1 : string;
  Var1, Var2 : variant;
  WStr1 : widestring;
  Bool1 : boolean;
begin
  LogInfo('');
  Str1 := 'Morning!';
  LogInfo(Str1);
 //Returns data type 258
  LogInfo('Data type for STRING variable with TEXT = '+IntToStr(VarType(Str1)));
  LogInfo('');

  Var1 := 'Hello there βÆ£€èç';
  LogInfo(Var1);
 //Returns data type 256
  LogInfo('Data type for VARIANT variable with TEXT = '+IntToStr(VarType(aVar)));
  LogInfo('');

  WStr1 := 'βÆ£€èç is a widestring';
  LogInfo(WStr1);
 //Returns VarType of 8
  LogInfo('Data Type for WIDESTRING variable = '+IntToStr(VarType(WStr1)));
  LogInfo('');

  Var2 := null;
 //Returns data type 1
  LogInfo('Data type for null VARIANT = '+IntToStr(VarType(aVar)));
  LogInfo('');

  Bool1 := VarIsNull(Var2);
  LogInfo(BoolToStr(Bool1, true));
 //Returns data type 11
  LogInfo('Data type for BOOLEAN = '+IntToStr(VarType(Bool1)));
  LogInfo('');

end;
```