DbConnectionStringBuilder.EquivalentTo(DbConnectionStringBuilder) Yöntem

public:
 virtual bool EquivalentTo(System::Data::Common::DbConnectionStringBuilder ^ connectionStringBuilder);

public virtual bool EquivalentTo (System.Data.Common.DbConnectionStringBuilder connectionStringBuilder);

abstract member EquivalentTo : System.Data.Common.DbConnectionStringBuilder -> bool
override this.EquivalentTo : System.Data.Common.DbConnectionStringBuilder -> bool

Public Overridable Function EquivalentTo (connectionStringBuilder As DbConnectionStringBuilder) As Boolean

Parametreler

Döndürülenler

trueher iki DbConnectionStringBuilder nesnedeki bağlantı bilgileri eşdeğer bir bağlantı dizesi neden oluyorsa; aksi takdirde false.

Örnekler

static void Main()
{
    DbConnectionStringBuilder builder1 =
        new DbConnectionStringBuilder();
    builder1.ConnectionString =
        "Value1=SomeValue;Value2=20;Value3=30;Value4=40";
    Console.WriteLine("builder1 = " + builder1.ConnectionString);

    DbConnectionStringBuilder builder2 =
        new DbConnectionStringBuilder();
    builder2.ConnectionString =
        "value2=20;value3=30;VALUE4=40;Value1=SomeValue";
    Console.WriteLine("builder2 = " + builder2.ConnectionString);

    DbConnectionStringBuilder builder3 =
        new DbConnectionStringBuilder();
    builder3.ConnectionString =
        "value2=20;value3=30;VALUE4=40;Value1=SOMEVALUE";
    Console.WriteLine("builder3 = " + builder3.ConnectionString);

    // builder1 and builder2 contain the same
    // keys and values, in different order, and the
    // keys are not consistently cased. They are equivalent.
    Console.WriteLine("builder1.EquivalentTo(builder2) = " +
        builder1.EquivalentTo(builder2).ToString());

    // builder2 and builder3 contain the same key/value pairs in the
    // the same order, but the value casing is different, so they're
    // not equivalent.
    Console.WriteLine("builder2.EquivalentTo(builder3) = " +
        builder2.EquivalentTo(builder3).ToString());

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

Sub Main()
    Dim builder1 As New DbConnectionStringBuilder
    builder1.ConnectionString = _
        "Value1=SomeValue;Value2=20;Value3=30;Value4=40"
    Console.WriteLine("builder1 = " & builder1.ConnectionString)

    Dim builder2 As New DbConnectionStringBuilder
    builder2.ConnectionString = _
        "value2=20;value3=30;VALUE4=40;Value1=SomeValue"
    Console.WriteLine("builder2 = " & builder2.ConnectionString)

    Dim builder3 As New DbConnectionStringBuilder
    builder3.ConnectionString = _
        "value2=20;value3=30;VALUE4=40;Value1=SOMEVALUE"
    Console.WriteLine("builder3 = " & builder3.ConnectionString)

    ' builder1 and builder2 contain the same
    ' keys and values, in different order, and the 
    ' keys are not consistently cased. They are equivalent.
    Console.WriteLine("builder1.EquivalentTo(builder2) = " & _
        builder1.EquivalentTo(builder2).ToString())

    ' builder2 and builder3 contain the same key/value pairs in the 
    ' the same order, but the value casing is different, so they're
    ' not equivalent.
    Console.WriteLine("builder2.EquivalentTo(builder3) = " & _
        builder2.EquivalentTo(builder3).ToString())

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

Bu örnek aşağıdaki çıkışı görüntüler:

builder1 = value1=SomeValue;value2=20;value3=30;value4=40
builder2 = value2=20;value3=30;value4=40;value1=SomeValue
builder3 = value2=20;value3=30;value4=40;value1=SOMEVALUE
builder1.EquivalentTo(builder2) = True
builder2.EquivalentTo(builder3) = False

Açıklamalar

Anahtar adlarıyla ilgili karşılaştırmalar büyük/küçük harfe duyarlı değildir; değer karşılaştırmaları büyük/küçük harfe duyarlıdır.

yöntemi, EquivalentTo anahtar/değer çiftlerinin sırasına bakılmaksızın eşit olması durumunda döndürür true . İki bağlantı dizesinin bağlantı davranışı eşdeğerdir, çünkü sıra bağlantı dizelerinde hiçbir zaman önemli değildir. Ancak, bu bağlantı dizelerini temel alan bağlantıların bağlantı havuzu davranışını farklı bir sıralama etkileyebilir.

Şunlara uygulanır

Ayrıca bkz.

• ADO.NET'da Bağlantı Dizeleri
• ADO.NET’e Genel Bakış