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DebuggerTypeProxyAttribute Constructor (Type^)

 

Initializes a new instance of the DebuggerTypeProxyAttribute class using the type of the proxy.

Namespace:   System.Diagnostics
Assembly:  mscorlib (in mscorlib.dll)

public:
DebuggerTypeProxyAttribute(
	Type^ type
)

Parameters

type
Type: System::Type^

The proxy type.

Exception Condition
ArgumentNullException

type is null.

The debugger creates a new instance of the type proxy class every time it needs to display a variable of the target type. This can have performance implications. As a result, you should not do any more work in the constructor than absolutely necessary.

The following code example shows the use of the DebuggerTypeProxyAttribute(Type^) constructor to specify a debugger display proxy. This code example is part of a larger example provided for the DebuggerDisplayAttribute class.

[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;
            }
        }
    };
};

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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