HtmlSelectBuilder.GetChildControlType(String, IDictionary) Metode

Definisi

Ruang nama:
System.Web.UI.HtmlControls
Rakitan:
System.Web.dll

Type Mendapatkan untuk HtmlSelect kontrol anak kontrol.

public:
 override Type ^ GetChildControlType(System::String ^ tagName, System::Collections::IDictionary ^ attribs);
public override Type GetChildControlType(string tagName, System.Collections.IDictionary attribs);
override this.GetChildControlType : string * System.Collections.IDictionary -> Type
Public Overrides Function GetChildControlType (tagName As String, attribs As IDictionary) As Type

Parameter

tagName
String

Nama tag kontrol anak.

attribs
IDictionary

Array atribut yang terkandung dalam kontrol anak.

Mengembalikan

Type

Kontrol Type turunan HtmlSelect kontrol yang ditentukan.

Contoh

Contoh kode berikut menunjukkan cara mengambil alih GetChildControlType metode untuk memeriksa jenis kontrol anak kustom. Untuk contoh kode kerja yang lengkap, lihat HtmlSelectBuilder topik gambaran umum kelas.

[AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
public override Type GetChildControlType(string tagName, IDictionary attribs)
{
    // Distinguish between two possible types of child controls.
    if (tagName.ToLower().EndsWith("myoption1"))
    {
        return typeof(MyOption1);
    }
    else if (tagName.ToLower().EndsWith("myoption2"))
    {
        return typeof(MyOption2);
    }
    return null;
}

<AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
Public Overrides Function GetChildControlType(ByVal tagName As String, ByVal attribs As IDictionary) As Type

    ' Distinguish between two possible types of child controls.
    If tagName.ToLower().EndsWith("myoption1") Then
        Return GetType(MyOption1)
    ElseIf tagName.ToLower().EndsWith("myoption2") Then
        Return GetType(MyOption2)
    End If
    Return Nothing

End Function

Keterangan

GetChildControlType Gunakan metode untuk mengembalikan Type kontrol anak tertentu dalam HtmlSelect kontrol.

Berlaku untuk

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