AdoDotNetDataSourceInformation.RetrieveValue Method

Retrieves a value for a specified data source information property.

Namespace: Microsoft.VisualStudio.Data.AdoDotNet
Assembly: Microsoft.VisualStudio.Data (in Microsoft.VisualStudio.Data.dll)

Syntax

'宣言
Protected Overrides Function RetrieveValue ( _
    propertyName As String _
) As Object
'使用
Dim propertyName As String
Dim returnValue As Object

returnValue = Me.RetrieveValue(propertyName)

protected override Object RetrieveValue(
    string propertyName
)

protected:
virtual Object^ RetrieveValue(
    String^ propertyName
) override

protected override function RetrieveValue(
    propertyName : String
) : Object

Parameters

propertyName
Type: System.String

The name of a data source information property.

Return Value

Type: System.Object

Returns the value of the data source information property, or returns a null reference (Nothing in Visual Basic) if the property is not supported.

Exceptions

Exception	Condition
ArgumentNullException	The propertyName parameter is null.

Remarks

The base class keeps a cache of values that have been retrieved, and as such only calls this method once per data source information property. Thus, the implementation of this method need not cache values itself.

The base implementation of this method simply returns a null reference (Nothing in Visual Basic).

Permissions

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.