OPC Studio User's Guide and Reference
GetElementType Method (VarType)



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.ComInterop Namespace > VarType Class : GetElementType Method
Returns the VarType of the elements encompassed by the current array.
Syntax
'Declaration
 
Public Function GetElementType() As VarType
'Usage
 
Dim instance As VarType
Dim value As VarType
 
value = instance.GetElementType()
public VarType GetElementType()
public:
VarType^ GetElementType(); 

Return Value

The VarType of the elements encompassed by the current array, or null if the current VarType is not an array.

Because there is an implicit conversion from VarType to System.Int32 and VarTypes, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use the return value in place of an integer (System.Int32) (representing the numerical value of the COM VARTYPE), or in place a VarTypes enumeration value. When the implicit conversion operators are not supported (such as with Python.NET), you can use the ToInt32 or ToVarTypes static method instead.

This method can return null (Nothing in Visual Basic).

Remarks

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also