DebuggerStepThroughAttribute Class
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DebuggerStepThroughAttribute Class


Instructs the debugger to step through the code instead of stepping into the code. This class cannot be inherited.

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


[AttributeUsageAttribute(AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Constructor | AttributeTargets.Method, 
	Inherited = false)]
public sealed class DebuggerStepThroughAttribute : Attribute


Initializes a new instance of the DebuggerStepThroughAttribute 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.)

This attribute is provided for use by source code debuggers; the common language runtime is not affected by it. For example, the Visual Studio debugger does not stop in a method that is marked with this attribute even if a breakpoint is set in the method.

The DebuggerStepThroughAttribute attribute affects the Just My Code (JMC) feature of Visual Studio in the following ways:

  • If JMC is enabled, the Visual Studio debugger will not stop at a breakpoint in a method marked with the DebuggerStepThroughAttribute attribute.

  • If JMC is disabled, the debugger stops at the breakpoint even if the method is marked with the DebuggerStepThroughAttribute.

The following code shows how the Visual Basic compiler uses the attribute.

<System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        components = New System.ComponentModel.Container()
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.Text = "Form1"
    End Sub

This attribute avoids having to step into compiler-provided code and only steps into developer-provided code. For example, if you are stepping through code by using the F11 (Step Into) key, the attribute will cause the step to behave like an F10 (Step Over) key for compiler-provided code. The method won’t be stepped into, but it will be executed.

For more information about using attributes, see Extending Metadata Using Attributes.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1

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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