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SystemTypeName Function 

  • Article

Returns a String value containing the system data type name of a variable.

Public Function SystemTypeName(ByVal VbName As String) As String

Parameters

  • VbName
    Required. A String variable containing a Visual Basic type name.

Remarks

SystemTypeName returns the fully qualified common language runtime (CLR) type name corresponding to the Visual Basic type name. For example, if VbName contains "Date", SystemTypeName returns "System.DateTime". If SystemTypeName does not recognize the value of VbName, it returns Nothing (not the string "Nothing").

Example

The following example uses the SystemTypeName function to return data type names for several variables.

Dim vbLongName As String = "Long"
Dim vbDateName As String = "Date"
Dim vbBadName As String = "Number"
Dim testSysName As String
testSysName = SystemTypeName(vbLongName)
' The preceding call returns "System.Int64".
testSysName = SystemTypeName(vbDateName)
' The preceding call returns "System.DateTime".
testSysName = SystemTypeName(vbBadName)
' The preceding call returns Nothing.

Requirements

Namespace: Microsoft.VisualBasic

Module: Information

Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)

See Also

Reference

Data Type Summary (Visual Basic)
String Data Type (Visual Basic)
VbTypeName Function