DebuggerTypeProxyAttribute 构造函数

定义

命名空间:

System.Diagnostics

程序集:

System.Runtime.dll

将使用此类型代理的 DebuggerTypeProxyAttribute 类的新实例初始化。

重载

DebuggerTypeProxyAttribute(String)	使用代理类型名称初始化 DebuggerTypeProxyAttribute 类的新实例。
DebuggerTypeProxyAttribute(Type)	将使用此类型代理的 DebuggerTypeProxyAttribute 类的新实例初始化。

DebuggerTypeProxyAttribute(String)

Source:

DebuggerTypeProxyAttribute.cs

使用代理类型名称初始化 DebuggerTypeProxyAttribute 类的新实例。

public:
 DebuggerTypeProxyAttribute(System::String ^ typeName);

public DebuggerTypeProxyAttribute (string typeName);

new System.Diagnostics.DebuggerTypeProxyAttribute : string -> System.Diagnostics.DebuggerTypeProxyAttribute

Public Sub New (typeName As String)

参数

typeName

String

代理类型的类型名称。

注解

在每次需要显示目标类型的变量时，调试器都会创建类型代理类的一个新实例。 这会对性能产生一定影响。 因此，不应在构造函数中执行非必需的工作。

DebuggerTypeProxyAttribute(Type)

Source:

DebuggerTypeProxyAttribute.cs

将使用此类型代理的 DebuggerTypeProxyAttribute 类的新实例初始化。

public:
 DebuggerTypeProxyAttribute(Type ^ type);

public DebuggerTypeProxyAttribute (Type type);

new System.Diagnostics.DebuggerTypeProxyAttribute : Type -> System.Diagnostics.DebuggerTypeProxyAttribute

Public Sub New (type As Type)

参数

type

Type

代理类型。

例外

ArgumentNullException

type 为 null。

示例

下面的代码示例演示如何使用 DebuggerTypeProxyAttribute(Type) 构造函数来指定调试器显示代理。 此代码示例是为 DebuggerDisplayAttribute 类提供的一个更大示例的一部分。

[DebuggerTypeProxy(HashtableDebugView::typeid)]
ref class MyHashtable : Hashtable
{
private:
    static const String^ TestString = "This should not appear in the debug window.";

internal:
    ref class HashtableDebugView
    {
    private:
        Hashtable^ hashtable;
    public:
        static const String^ TestString = "This should appear in the debug window.";
        HashtableDebugView(Hashtable^ hashtable)
        {
            this->hashtable = hashtable;
        }

        [DebuggerBrowsable(DebuggerBrowsableState::RootHidden)]
        property array<KeyValuePairs^>^ Keys
        {
            array<KeyValuePairs^>^ get()
            {
                array<KeyValuePairs^>^ keys = gcnew array<KeyValuePairs^>(hashtable->Count);

                IEnumerator^ ie = hashtable->Keys->GetEnumerator();
                int i = 0;
                Object^ key;
                while (ie->MoveNext())
                {
                    key = ie->Current;
                    keys[i] = gcnew KeyValuePairs(hashtable, key, hashtable[key]);
                    i++;
                }
                return keys;
            }
        }
    };
};

[DebuggerTypeProxy(typeof(HashtableDebugView))]
class MyHashtable : Hashtable
{
    private const string TestString = "This should not appear in the debug window.";

    internal class HashtableDebugView
    {
        private Hashtable hashtable;
        public const string TestString = "This should appear in the debug window.";
        public HashtableDebugView(Hashtable hashtable)
        {
            this.hashtable = hashtable;
        }

        [DebuggerBrowsable(DebuggerBrowsableState.RootHidden)]
        public KeyValuePairs[] Keys
        {
            get
            {
                KeyValuePairs[] keys = new KeyValuePairs[hashtable.Count];

                int i = 0;
                foreach(object key in hashtable.Keys)
                {
                    keys[i] = new KeyValuePairs(hashtable, key, hashtable[key]);
                    i++;
                }
                return keys;
            }
        }
    }
}

<DebuggerDisplay("Count = {Count}"), DebuggerTypeProxy(GetType(MyHashtable.HashtableDebugView))> _
Class MyHashtable
    Inherits Hashtable
    Private Const TestString As String = "This should not appear in the debug window."

    Friend Class HashtableDebugView
        Private hashtable As Hashtable
        Public Shared TestString As String = "This should appear in the debug window."

        Public Sub New(ByVal hashtable As Hashtable)
            Me.hashtable = hashtable
        End Sub

        <DebuggerBrowsable(DebuggerBrowsableState.RootHidden)> _
        ReadOnly Property Keys as KeyValuePairs()
            Get
                Dim nkeys(hashtable.Count) as KeyValuePairs

                Dim i as Integer = 0
                For Each key As Object In hashtable.Keys
                    nkeys(i) = New KeyValuePairs(hashtable, key, hashtable(key))
                    i = i + 1
                Next
                Return nkeys
            End Get
        End Property

    End Class
End Class

注解

在每次需要显示目标类型的变量时，调试器都会创建类型代理类的一个新实例。 这会对性能产生一定影响。 因此，不应在构造函数中执行非必需的工作。