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Code Analyzer for VB.NET

There is a newer version: 10.5.0.109200

Why is this an issue?
When creating a custom Markup Extension
that accepts parameters in WPF, the ConstructorArgument markup
must be used to identify the discrete properties that match these parameters. However since this is done via a string, the compiler won’t give you any
warning in case there are typos.
This rule raises an issue when the string argument to ConstructorArgumentAttribute doesn’t match any parameter of any constructor.
How to fix it
Code examples
Noncompliant code example
Imports System

Namespace MyLibrary
    Public Class MyExtension
        Inherits MarkupExtension

        Public Sub New()
        End Sub

        Public Sub New(ByVal value1 As Object)
            Value1 = value1
        End Sub

        <ConstructorArgument("value2")> ' Noncompliant
        Public Property Value1 As Object
    End Class
End Namespace

Compliant solution
Imports System

Namespace MyLibrary
    Public Class MyExtension
        Inherits MarkupExtension

        Public Sub New()
        End Sub

        Public Sub New(ByVal value1 As Object)
            Value1 = value1
        End Sub

        <ConstructorArgument("value1")>
        Public Property Value1 As Object
    End Class
End Namespace

Resources
Documentation

   Microsoft Learn - Markup Extensions and
  WPF XAML 
   Microsoft Learn - MarkupExtension Class 
   Microsoft Learn - ConstructorArgumentAttribute Class