HtmlTextWriter.NewLine Properti

Definisi

Ruang nama:

System.Web.UI

Rakitan:

System.Web.dll

Mendapatkan atau mengatur string terminator baris yang HtmlTextWriter digunakan oleh objek.

public:
 virtual property System::String ^ NewLine { System::String ^ get(); void set(System::String ^ value); };

public override string NewLine { get; set; }

member this.NewLine : string with get, set

Public Overrides Property NewLine As String

Nilai Properti

String

String terminator baris yang digunakan oleh saat ini HtmlTextWriter.

Contoh

Contoh kode berikut menunjukkan cara menggunakan kelas kustom, berasal dari HtmlTextWriter kelas , yang mengambil alih FilterAttributes metode . Ketika dipanggilFilterAttributes, penimpaan memeriksa apakah penulis teks merender elemen atau <a> apa pun<label>. Jika demikian, FilterAttributes metode menentukan apakah atribut gaya didefinisikan untuk label. Jika tidak ada gaya yang ditentukan, FilterAttributes metode mengatur nilai default untuk atribut menjadi style:color biru. Metode kemudian FilterAttributes menggunakan NewLine properti untuk menyisipkan pemisah baris di tag markup dan menulis atribut lain yang ditentukan.

// Override the FilterAttributes method to check whether 
// <label> and <anchor> elements contain specific attributes. 
virtual void FilterAttributes() override
{
   // If the <label> element is rendered and a style
   // attribute is not defined, add a style attribute 
   // and set its value to blue.
   if ( TagKey == HtmlTextWriterTag::Label )
   {
      if (  !IsAttributeDefined( HtmlTextWriterAttribute::Style ) )
      {
         AddAttribute( "style", EncodeAttributeValue( "color:blue", true ) );
         Write( NewLine );
         Indent = 3;
         OutputTabs();
      }
   }

   // If an <anchor> element is rendered and an href
   // attribute has not been defined, call the AddAttribute
   // method to add an href attribute
   // and set it to http://www.cohowinery.com.
   // Use the EncodeUrl method to convert any spaces to %20.
   if ( TagKey == HtmlTextWriterTag::A )
   {
      if (  !IsAttributeDefined( HtmlTextWriterAttribute::Href ) )
      {
         AddAttribute( "href", EncodeUrl( "http://www.cohowinery.com" ) );
      }
   }

   // Call the FilterAttributes method of the base class.
   __super::FilterAttributes();
}

// Override the FilterAttributes method to check whether 
// <label> and <anchor> elements contain specific attributes.      
protected override void FilterAttributes()
{
    // If the <label> element is rendered and a style
    // attribute is not defined, add a style attribute 
    // and set its value to blue.
    if (TagKey == HtmlTextWriterTag.Label)
    {
        if (!IsAttributeDefined(HtmlTextWriterAttribute.Style))
        {
            AddAttribute("style", EncodeAttributeValue("color:blue", true));
            Write(NewLine);
            Indent = 3;
            OutputTabs();
        }
    }

    // If an <anchor> element is rendered and an href
    // attribute has not been defined, call the AddAttribute
    // method to add an href attribute
    // and set it to http://www.cohowinery.com.
    // Use the EncodeUrl method to convert any spaces to %20.
    if (TagKey == HtmlTextWriterTag.A)
    {
        if (!IsAttributeDefined(HtmlTextWriterAttribute.Href))
        {
            AddAttribute("href", EncodeUrl("http://www.cohowinery.com"));
        }
    }
    // Call the FilterAttributes method of the base class.
    base.FilterAttributes();
}

' Override the FilterAttributes method to check whether 
' <label> and <anchor> elements contain specific attributes.   
Protected Overrides Sub FilterAttributes()

    ' If the <label> element is rendered and a style
    ' attribute is not defined, add a style attribute 
    ' and set its value to blue.
    If TagKey = HtmlTextWriterTag.Label Then
        If Not IsAttributeDefined(HtmlTextWriterAttribute.Style) Then
            AddAttribute("style", EncodeAttributeValue("color:blue", True))
            Write(NewLine)
            Indent = 3
            OutputTabs()
        End If
    End If
    ' If an <anchor> element is rendered and an href
    ' attribute has not been defined, call the AddAttribute
    ' method to add an href attribute
    ' and set it to http://www.cohowinery.com.
    ' Use the EncodeUrl method to convert any spaces to %20.
    If TagKey = HtmlTextWriterTag.A Then
        If Not IsAttributeDefined(HtmlTextWriterAttribute.Href) Then
            AddAttribute("href", EncodeUrl("http://www.cohowinery.com"))
        End If
    End If

    ' Call the FilterAttributes method of the base class.
    MyBase.FilterAttributes()
End Sub

Keterangan

String terminator baris default adalah pengembalian pengangkutan, diikuti oleh umpan baris ("\r\n").

String terminator baris ditulis ke aliran output setiap kali salah satu metode dipanggil WriteLine . NewLine Jika properti diatur ke null, karakter baris baru default digunakan.

Lihat juga

• WriteLine
• TextWriter
• NewLine