FieldInfo.IsPublic 屬性

public:
 property bool IsPublic { bool get(); };

public bool IsPublic { get; }

member this.IsPublic : bool

Public ReadOnly Property IsPublic As Boolean

屬性值

true如果這個欄位是公開的;否則，。 false

實作

範例

以下範例回傳一個值，表示該類別的欄位是公開還是私有。

using System;
using System.Reflection;

 // Make two fields.
public
    class Myfielda // private
{
    private string SomeField = "private field";
    public string Field
    {
        get{return SomeField;}
    }
}

public
    class Myfieldb // public
{
    public string SomeField = "public field";
}

public
    class Myfieldinfo
{
    public static int Main()
    {
        Console.WriteLine("\nReflection.FieldInfo");
        Myfielda Myfielda = new Myfielda();
        Myfieldb Myfieldb = new Myfieldb();

        // Get the Type and FieldInfo.
        Type MyTypea = typeof(Myfielda);
        FieldInfo Myfieldinfoa = MyTypea.GetField("SomeField",
            BindingFlags.NonPublic|BindingFlags.Instance);
        Type MyTypeb = typeof(Myfieldb);
        FieldInfo Myfieldinfob = MyTypeb.GetField("SomeField");

        // Get and display the IsPublic and IsPrivate property values.
        Console.Write("\n{0}.", MyTypea.FullName);
        Console.Write("{0} - ", Myfieldinfoa.Name);
        Console.Write("{0}", Myfielda.Field);
        Console.Write("\n   IsPublic = {0}", Myfieldinfoa.IsPublic);
        Console.Write("\n   IsPrivate = {0}", Myfieldinfoa.IsPrivate);

        Console.Write("\n{0}.", MyTypeb.FullName);
        Console.Write("{0} - ", Myfieldinfob.Name);
        Console.Write("{0};", Myfieldb.SomeField);
        Console.Write("\n   IsPublic = {0}", Myfieldinfob.IsPublic);
        Console.Write("\n   IsPrivate = {0}", Myfieldinfob.IsPrivate);

        return 0;
    }
}

Imports System.Reflection

' Make two fields.
Public Class Myfielda
    ' Make a private field.
    Private SomeField As String = "private field"

    Public ReadOnly Property Field() As String
        Get
            Return SomeField
        End Get
    End Property
End Class

Public Class Myfieldb
    ' Make a public field.
    Public SomeField As String = "public field"
End Class

Public Class Myfieldinfo

    Public Shared Function Main() As Integer
        Console.WriteLine("Reflection.FieldInfo")
        Console.WriteLine()
        Dim Myfielda As New Myfielda()
        Dim Myfieldb As New Myfieldb()

        ' Get the Type and FieldInfo.
        Dim MyTypea As Type = GetType(Myfielda)
        Dim Myfieldinfoa As FieldInfo = MyTypea.GetField("SomeField", _
            BindingFlags.NonPublic Or BindingFlags.Instance)
        Dim MyTypeb As Type = GetType(Myfieldb)
        Dim Myfieldinfob As FieldInfo = MyTypeb.GetField("SomeField")

        ' Get and display the IsPublic and IsPrivate property values.
        Console.WriteLine("{0}.{1} - {2}", MyTypea.FullName, Myfieldinfoa.Name, _
            Myfielda.Field)
        Console.WriteLine("   IsPublic = {0}", Myfieldinfoa.IsPublic)
        Console.WriteLine("   IsPrivate = {0}", Myfieldinfoa.IsPrivate)
        Console.WriteLine()
        Console.WriteLine("{0}.{1} - {2}", MyTypeb.FullName, Myfieldinfob.Name, _
            Myfieldb.SomeField)
        Console.WriteLine("   IsPublic = {0}", Myfieldinfob.IsPublic)
        Console.WriteLine("   IsPrivate = {0}", Myfieldinfob.IsPrivate)

        Return 0
    End Function 'Main
End Class

備註

公共欄位在可見其對應類別的地方皆可存取。

IsPublic屬性設定時FieldAttributes.Public屬性也被設定。

要取得該 IsPublic 性質，首先取得類別 Type。 從 Type中取得 FieldInfo。 從 FieldInfo，取得 IsPublic 該物業。 若該場地非公開，則受保護且無法輕易進入。 要存取非公開欄位，請設定 BindingFlags 為 NonPublic，指定 或 BindingFlags.InstanceBindingFlags.Static，並以此作為 GetField 方法。

另請參閱

• FieldAttributes
• BindingFlags