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
Sodelujte z nami v storitvi GitHub
Vir za to vsebino najdete v storitvi GitHub, kjer lahko tudi ustvarite in pregledate težave in zahtevke za uveljavitev sprememb. Če želite več informacij, glejte naš vodnik za sodelavce.