OleDbConnection.ConnectionTimeout 属性

  • 参考

定义

命名空间:
System.Data.OleDb
程序集:
System.Data.OleDb.dll
程序集:
System.Data.dll

获取在尝试建立连接时终止尝试并生成错误之前所等待的时间（以秒为单位）。

public:
 virtual property int ConnectionTimeout { int get(); };
public:
 property int ConnectionTimeout { int get(); };
public override int ConnectionTimeout { get; }
[System.Data.DataSysDescription("OleDbConnection_ConnectionTimeout")]
public int ConnectionTimeout { get; }
member this.ConnectionTimeout : int
[<System.Data.DataSysDescription("OleDbConnection_ConnectionTimeout")>]
member this.ConnectionTimeout : int
Public Overrides ReadOnly Property ConnectionTimeout As Integer
Public ReadOnly Property ConnectionTimeout As Integer

属性值

Int32

等待连接打开的时间（以秒为单位）。 默认值为 15 秒。

实现

ConnectionTimeout
属性
DataSysDescriptionAttribute

例外

ArgumentException

设置的值小于 0。

示例

以下示例在 OleDbConnection 连接字符串中创建并设置其一些属性。

// The connectionString argument contains the Connect Timeout
// keywords, as follows: "... ;Connect Timeout=30;"
public void InsertRow(string connectionString, string insertSQL)
{
    using (OleDbConnection connection = new OleDbConnection(connectionString))
    {
        // The insertSQL string contains a SQL statement that
        // inserts a new row in the source table.
        OleDbCommand command = new OleDbCommand(insertSQL);

        // Set the Connection to the new OleDbConnection.
        command.Connection = connection;

        // Open the connection and execute the insert command.
        try
        {
            connection.Open();
            command.ExecuteNonQuery();
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }
        // The connection is automatically closed when the
        // code exits the using block.
    }
}

' The connectionString argument contains the Connect Timeout 
' keywords, as follows: "... ;Connect Timeout=30;"
Public Sub InsertRow(ByVal connectionString As String, _
    ByVal insertSQL As String)

    Using connection As New OleDbConnection(connectionString)
        ' The insertSQL string contains a SQL statement that
        ' inserts a new row in the source table.
        Dim command As New OleDbCommand(insertSQL)

        ' Set the Connection to the new OleDbConnection.
        command.Connection = connection

        ' Open the connection and execute the insert command.
        Try
            connection.Open()
            command.ExecuteNonQuery()
        Catch ex As Exception
            Console.WriteLine(ex.Message)
        End Try
        ' The connection is automatically closed when the
        ' code exits the Using block.
    End Using
End Sub

注解

值为 0 表示没有限制，因此应避免在尝试 ConnectionString 连接时无限期等待。

适用于

另请参阅