SqlCeConnection.ChangeDatabase Method

Changes the current database for an open SqlCeConnection.

Namespace: System.Data.SqlServerCe
Assembly: System.Data.SqlServerCe (in system.data.sqlserverce.dll)

Syntax

'Declaration
Public Overrides Sub ChangeDatabase ( _
    value As String _
)
'Usage
Dim instance As SqlCeConnection
Dim value As String

instance.ChangeDatabase(value)

public override void ChangeDatabase (
    string value
)

public:
virtual void ChangeDatabase (
    String^ value
) override

public void ChangeDatabase (
    String value
)

public override function ChangeDatabase (
    value : String
)

Parameters

• value
  The database name.

Return Value

True if the database was changed successfully; otherwise, false.

Exceptions

Remarks

The name supplied in the value parameter must be a valid database name. The name must be the full path to the database; for example, "\my app\myDB.sdf". The value parameter cannot contain a a null reference (Nothing in Visual Basic) value, be empty, or contain a string with only blank characters.

ChangeDatabase applies to the new database the same properties used to open the current database, except for the password, which will be set to an empty string.

If the new database requires a password, this call will fail. If this occurs, to change databases, you must close the original connection, specify a new connection string, and then reopen the connection.

Example

The following example shows how to switch databases while preserving the original connection options.

Dim conn As New SqlCeConnection()

' Set some connection string properties e.g.:
' 
conn.ConnectionString = _
    "Persist Security Info = False; Data Source = 'SalesData.sdf';" & _
    "Password = '<password>'; File Mode = 'shared read'; " & _
    "Max Database Size = 256; Max Buffer Size = 1024"

conn.Open()

' You can change the database while preserving 
' the orignal connection options
'
conn.ChangeDatabase("SupportData.sdf")

SqlCeConnection conn = new SqlCeConnection();

// Set some connection string properties e.g.:
// 
conn.ConnectionString = 
    "Persist Security Info = False; Data Source = 'SalesData.sdf';" +
    "Password = '<password>'; File Mode = 'shared read'; " +
    "Max Database Size = 256; Max Buffer Size = 1024";

conn.Open();

// You can change the database while preserving 
// the orignal connection options
//
conn.ChangeDatabase("SupportData.sdf");

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see .

Platforms

Windows CE, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows XP Professional x64 Edition, Windows XP SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

Version Information

.NET Compact Framework

Supported in: 2.0, 1.0

See Also

Reference

SqlCeConnection Class
SqlCeConnection Members
System.Data.SqlServerCe Namespace