SuppressIldasmAttribute Class
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SuppressIldasmAttribute Class


Prevents the Ildasm.exe (IL Disassembler) from disassembling an assembly. This class cannot be inherited.

Namespace:   System.Runtime.CompilerServices
Assembly:  mscorlib (in mscorlib.dll)


[AttributeUsageAttribute(AttributeTargets.Assembly | AttributeTargets.Module)]
public sealed class SuppressIldasmAttribute : Attribute


Initializes a new instance of the SuppressIldasmAttribute class.


When implemented in a derived class, gets a unique identifier for this Attribute.(Inherited from Attribute.)


This API supports the product infrastructure and is not intended to be used directly from your code. Returns a value that indicates whether this instance is equal to a specified object.(Inherited from Attribute.)


Returns the hash code for this instance.(Inherited from Attribute.)


Gets the Type of the current instance.(Inherited from Object.)


When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.(Inherited from Attribute.)


When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.)


Returns a string that represents the current object.(Inherited from Object.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can be used to get the type information for an interface.(Inherited from Attribute.)


Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.(Inherited from Attribute.)

Apply the SuppressIldasmAttribute attribute to an assembly or module to prevent the assembly or module from being disassembled using the Ildasm.exe (IL Disassembler).

This attribute does not prevent an assembly from being viewed using reflection.

Note that SuppressIldasmAttribute attribute does not block the Ildasm.exe (IL Disassembler) from viewing header information and meta-information.

Legacy Code Example

The following code example demonstrates how to apply the SuppressIldasmAttribute attribute to an assembly.

using System;
using System.Runtime.InteropServices;

class Example

    static void Main()
        // Create a managed array.
        byte[] managedArray = { 1, 2, 3, 4 };

        // Initialize unmanaged memory to hold the array.
        int size = Marshal.SizeOf(managedArray[0]) * managedArray.Length;

        IntPtr pnt = Marshal.AllocHGlobal(size);

            // Copy the array to unmanaged memory.
            Marshal.Copy(managedArray, 0, pnt, managedArray.Length);

            // Copy the unmanaged array back to another managed array.

            byte[] managedArray2 = new byte[managedArray.Length];

            Marshal.Copy(pnt, managedArray2, 0, managedArray.Length);

            Console.WriteLine("The array was copied to unmanaged memory and back.");

            // Free the unmanaged memory.



.NET Framework
Available since 2.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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