SqlConnection.DataSource 属性
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
获取要连接的 SQL Server 的实例的名称。
public:
virtual property System::String ^ DataSource { System::String ^ get(); };public:
property System::String ^ DataSource { System::String ^ get(); };C#
public override string DataSource { get; }C#
[System.Data.DataSysDescription("SqlConnection_DataSource")]
public string DataSource { get; }C#
[System.ComponentModel.Browsable(true)]
public override string DataSource { get; }member this.DataSource : string[<System.Data.DataSysDescription("SqlConnection_DataSource")>]
member this.DataSource : string[<System.ComponentModel.Browsable(true)>]
member this.DataSource : stringPublic Overrides ReadOnly Property DataSource As StringPublic ReadOnly Property DataSource As String要连接到的SQL Server实例的名称。 默认值为一个空字符串。
- 属性
以下示例创建 并 SqlConnection 显示其一些只读属性。
C#
private static void OpenSqlConnection(string connectionString)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
Console.WriteLine("ServerVersion: {0}", connection.ServerVersion);
Console.WriteLine("DataSource: {0}", connection.DataSource);
}
}
Private Sub OpenSqlConnection(ByVal connectionString As String)
Using connection As New SqlConnection(connectionString)
connection.Open()
Console.WriteLine("ServerVersion: {0}", connection.ServerVersion)
Console.WriteLine("DataSource: {0}", connection.DataSource)
End Using
End Sub
备注
如果 的连接字符串为“context connection=true”，SqlConnection则DataSource属性返回 null 。
| 产品 | 版本 |
|---|---|
| .NET | Core 1.0, Core 1.1, 6 (package-provided), 7 (package-provided), 8 (package-provided), 9 (package-provided), 10 (package-provided) |
| .NET Framework | 1.1, 2.0, 3.0, 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 |
| .NET Standard | 2.0 (package-provided) |
