SqlCeConnection.GetDatabaseInfo 方法
返回一组键值对，包含关于已连接数据库的区域设置、加密模式和区分大小写设置的信息。
命名空间： System.Data.SqlServerCe
程序集： System.Data.SqlServerCe（在 System.Data.SqlServerCe.dll 中）
语法
声明
<SecurityCriticalAttribute> _
<SecurityTreatAsSafeAttribute> _
<SecurityPermissionAttribute(SecurityAction.Assert, UnmanagedCode := True)> _
Public Function GetDatabaseInfo As List(Of KeyValuePair(Of String, String))
用法
Dim instance As SqlCeConnection
Dim returnValue As List(Of KeyValuePair(Of String, String))
returnValue = instance.GetDatabaseInfo()
[SecurityCriticalAttribute]
[SecurityTreatAsSafeAttribute]
[SecurityPermissionAttribute(SecurityAction.Assert, UnmanagedCode = true)]
public List<KeyValuePair<string, string>> GetDatabaseInfo()
[SecurityCriticalAttribute]
[SecurityTreatAsSafeAttribute]
[SecurityPermissionAttribute(SecurityAction::Assert, UnmanagedCode = true)]
public:
List<KeyValuePair<String^, String^>>^ GetDatabaseInfo()
[<SecurityCriticalAttribute>]
[<SecurityTreatAsSafeAttribute>]
[<SecurityPermissionAttribute(SecurityAction.Assert, UnmanagedCode = true)>]
member GetDatabaseInfo : unit -> List<KeyValuePair<string, string>>
public function GetDatabaseInfo() : List<KeyValuePair<String, String>>
返回值
类型：System.Collections.Generic.List<KeyValuePair<String, String>>
区域设置、加密模式和区分大小写组成的名称值对的排序列表。
注释
有关加密选项、平台默认值和引擎默认值的详细信息，请参阅加密数据库。
示例
下面的示例使用 GetDatabaseInfo 来检索 Northwind.sdf 的数据库属性。SqlCeConnection 传入了一个连接字符串，然后打开了一个数据库连接。打开连接后，GetDatabaseInfo 的内容将存储在 KeyValuePair 中并在控制台上显示。
Dim connStr As String = Nothing
Dim databasePath As String = Nothing
Dim sqlconn As SqlCeConnection = Nothing
Try
'Defining database parameters
databasePath = "C:\Program Files\Microsoft SQL Server Compact Edition\v3.5\Samples\Northwind.sdf"
'If the database already exists, the existing encryption mode will supercede the supplied mode
connStr = "Data Source=" & databasePath & ";Encryption Mode = 'ppc2003 compatibility';Password='password'"
'Connecting to the database and opening the connection
sqlconn = New SqlCeConnection(connStr)
sqlconn.Open()
'Retrieving the database information
Dim dbinfo As List(Of KeyValuePair(Of String, String)) = sqlconn.GetDatabaseInfo
Console.WriteLine("GetDatabaseInfo() results:")
Dim kvp As KeyValuePair(Of String, String)
For Each kvp In dbinfo
Console.WriteLine(kvp)
Next
Catch ex As Exception
Console.WriteLine(ex.Message)
Finally
'Dispose the connection's resources
sqlconn.Dispose()
Console.WriteLine(vbNewLine & vbNewLine & vbNewLine & "Press any key to continue...")
Console.Read()
End Try
string connStr = null;
string databasePath = null;
SqlCeConnection sqlconn = null;
try
{
//Defining database parameters
databasePath = @"C:\Program Files\Microsoft SQL Server Compact Edition\v3.5\Samples\Northwind.sdf";
//If the database already exists, the existing encryption mode will supercede the supplied mode
connStr = "Data Source=" + databasePath + ";Encryption Mode = 'ppc2003 compatibility';Password='sa'";
//Connecting to the database and opening the connection
sqlconn = new SqlCeConnection(connStr);
sqlconn.Open();
//Retrieving the database information
List<KeyValuePair<string, string>> dbinfo = sqlconn.GetDatabaseInfo();
Console.WriteLine("GetDatabaseInfo() results:");
foreach (KeyValuePair<string, string> kvp in dbinfo)
{
Console.WriteLine(kvp);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
//Dispose the connection's resources
sqlconn.Dispose();
Console.WriteLine("\n\n\nPress any key to continue...");
Console.Read();
}