SqlConnectionStringBuilder.Clear 方法

定義

命名空間:

System.Data.SqlClient

組件:

System.Data.dll

清除實例內容 SqlConnectionStringBuilder 。

public:
 override void Clear();

public override void Clear();

override this.Clear : unit -> unit

Public Overrides Sub Clear ()

範例

以下範例示範呼叫該 Clear 方法。 這個範例會用一些鍵值對填充 ， SqlConnectionStringBuilder 然後呼叫該 Clear 方法並顯示結果。

using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
        builder.DataSource = "(local)";
        builder.IntegratedSecurity = true;
        builder.InitialCatalog = "AdventureWorks";
        Console.WriteLine("Initial connection string: " + builder.ConnectionString);

        builder.Clear();
        Console.WriteLine("After call to Clear, count = " + builder.Count);
        Console.WriteLine("Cleared connection string: " + builder.ConnectionString);
        Console.WriteLine();

        Console.WriteLine("Press Enter to continue.");
        Console.ReadLine();
    }
}

Imports System.Data.SqlClient
    
Module Module1
    Sub Main()
        Dim builder As New SqlConnectionStringBuilder
        builder.DataSource = "(local)"
        builder.IntegratedSecurity = True
        builder.InitialCatalog = "AdventureWorks"
        Console.WriteLine("Initial connection string: " & builder.ConnectionString)

        builder.Clear()
        Console.WriteLine("After call to Clear, count = " & builder.Count)
        Console.WriteLine("Cleared connection string: " & builder.ConnectionString)
        Console.WriteLine()

        Console.WriteLine("Press Enter to continue.")
        Console.ReadLine()
    End Sub
End Module

備註

此 Clear 方法會移除所有鍵值對， SqlConnectionStringBuilder並重置所有對應屬性。 這包括將屬性設 Count 為 0，並將屬性設 ConnectionString 為空字串。

另請參閱

• ADO.NET 中的連接字串
• ADO.NET 概觀