Information.VarType(Object) Method
Definition
Important
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Returns an Integer value containing the data type classification of a variable.
public:
static Microsoft::VisualBasic::VariantType VarType(System::Object ^ VarName);public static Microsoft.VisualBasic.VariantType VarType (object? VarName);public static Microsoft.VisualBasic.VariantType VarType (object VarName);static member VarType : obj -> Microsoft.VisualBasic.VariantTypePublic Function VarType (VarName As Object) As VariantTypeParameters
- VarName
- Object
Required. Object variable. If Option Strict is Off, you can pass a variable of any data type except a structure.
Returns
Returns an Integer value containing the data type classification of a variable.
Examples
The following example uses the VarType function to return data type classification information about several variables.
Dim testString As String = "String for testing"
Dim testObject As New Object
Dim testNumber, testArray(5) As Integer
Dim testVarType As VariantType
testVarType = VarType(testVarType)
' Returns VariantType.Integer.
testVarType = VarType(testString)
' Returns VariantType.String.
testVarType = VarType(testObject)
' Returns VariantType.Object.
testVarType = VarType(testNumber)
' Returns VariantType.Integer.
testVarType = VarType(testArray)
' Returns the bitwise OR of VariantType.Array and VariantType.Integer.
Remarks
The integer value returned by VarType is a member of the VariantType.
The following table shows the values returned by VarType for special cases of VarName.
Data type represented by VarName |
Value returned by VarType |
|---|---|
| Nothing | VariantType.Object |
| DBNull | VariantType.Null |
| Enumeration | Underlying data type (SByte, Byte, Short, UShort, Integer, UInteger, Long, or ULong) |
| Array | Bitwise OR of array element type and VariantType.Array |
| Array of arrays | Bitwise OR of VariantType.Object and VariantType.Array |
| Structure (System.ValueType) | VariantType.UserDefinedType |
| Exception | VariantType.Error |
| Unknown | VariantType.Object |
