DataContext.DatabaseExists Method

Reference

Definition

Namespace:: System.Data.Linq

Assembly:: System.Data.Linq.dll

Important

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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

Boolean

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

Продукт	Версії
.NET Framework	3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1

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