DataContext.DatabaseExists Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Determines whether the associated database can be opened.
public:
bool DatabaseExists();
public bool DatabaseExists ();
member this.DatabaseExists : unit -> bool
Public Function DatabaseExists () As Boolean
Returns
true
if the specified database can be opened; otherwise, false
.
Examples
The following example uses this method to determine whether a database already exists.
if (!db.DatabaseExists())
db.CreateDatabase();
// …
db.DeleteDatabase();
If Not db.DatabaseExists Then
db.CreateDatabase()
End If
' ...
db.DeleteDatabase()
Remarks
This method uses the connection in the Connection property to attempt to open the associated database.
Applies to
Feedback
https://aka.ms/ContentUserFeedback.
Kommer snart: I hele 2024 udfaser vi GitHub-problemer som feedbackmekanisme for indhold og erstatter det med et nyt feedbacksystem. Du kan få flere oplysninger under:Indsend og få vist feedback om