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Adds a property to the list of supported properties.
Namespace:  Microsoft.VisualStudio.Data
Assembly:  Microsoft.VisualStudio.Data (in Microsoft.VisualStudio.Data.dll)
Syntax
'Declaration
Protected Sub AddProperty ( _
    propertyName As String _
)
protected void AddProperty(
    string propertyName
)
protected:
void AddProperty(
    String^ propertyName
)
member AddProperty : 
        propertyName:string -> unit 
protected function AddProperty(
    propertyName : String
)
Parameters
- propertyName
 Type: System.String
 The name of a data source information property.
Exceptions
| Exception | Condition | 
|---|---|
| ArgumentNullException | The propertyName parameter is null. | 
Remarks
This method informs the base class that the property exists, but does not supply it with a value. The base class notes that no value has been provided and on first request calls the RetrieveValue method to obtain the value. Subsequent calls return a cached copy of the value, so RetrieveValue is not called again for this property.
This method should be called by derived classes, normally in their constructor, to indicate that a particular property is supported. Without calling this the Contains method returns false for this property name (unless it was already specified in one of the constructors).
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.