OPC Studio User's Guide and Reference
ValueType(UADataVariable,Type) Method



OpcLabs.ServerOpcUA Assembly > OpcLabs.EasyOpc.UA.NodeSpace Namespace > UADataVariableExtension Class > ValueType Method : ValueType(UADataVariable,Type) Method
The data variable that will be modified and returned.

The value of this parameter cannot be null (Nothing in Visual Basic).

The type of the data variable, expressed as .NET System.Type.

The value of this parameter cannot be null (Nothing in Visual Basic).

Makes the data variable to use the specified value type.
Syntax
'Declaration
 
<ExtensionAttribute()>
<NotNullAttribute()>
Public Overloads Shared Function ValueType( _
   ByVal dataVariable As UADataVariable, _
   ByVal valueType As Type _
) As UADataVariable
'Usage
 
Dim dataVariable As UADataVariable
Dim valueType As Type
Dim value As UADataVariable
 
value = UADataVariableExtension.ValueType(dataVariable, valueType)
[Extension()]
[NotNull()]
public static UADataVariable ValueType( 
   UADataVariable dataVariable,
   Type valueType
)
[Extension()]
[NotNull()]
public:
static UADataVariable^ ValueType( 
   UADataVariable^ dataVariable,
   Type^ valueType
) 

Parameters

dataVariable
The data variable that will be modified and returned.

The value of this parameter cannot be null (Nothing in Visual Basic).

valueType
The type of the data variable, expressed as .NET System.Type.

The value of this parameter cannot be null (Nothing in Visual Basic).

Return Value

Returns the dataVariable, internally modified as defined by the method.

This method never returns null (Nothing in Visual Basic).

Exceptions
ExceptionDescription

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

Remarks

This is an extension method (info: C#, VB.NET). In languages that have support for extensions methods (such as C# and VB.NET), you can use the extension method as if it were a regular method on the object that is its first parameter. In other languages (such as with Python.NET), you will call the extension as a static method, and pass it the object on which it acts as its first parameter.

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