Retrieves a form of the connection string that can be used for testing the connection.
Namespace: Microsoft.VisualStudio.Data.AdoDotNet
Assembly: Microsoft.VisualStudio.Data (in Microsoft.VisualStudio.Data.dll)
Syntax
'宣言
Protected Overridable Function ToTestString As String
'使用
Dim returnValue As String
returnValue = Me.ToTestString()
protected virtual string ToTestString()
protected:
virtual String^ ToTestString()
protected function ToTestString() : String
Return Value
Type: System.String
Returns a testable form of the connection string.
Remarks
The AdoDotNetConnectionProperties class implements the Test method by calling the DbProviderFactory class for the ADO.NET provider to create a connection, and then generically sets its connection string and tries to open the connection.
A DDEX provider may wish to use a slightly different form of the string at testing time (for example, disabling pooling), in which case they should override this method. The base implementation simply returns ToFullString.
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.
See Also
Reference
AdoDotNetConnectionProperties Class