FormHasMethod extension in D365FO

 FormHasMethod extension in D365FO

Every developer who has started working on D365FO faces this issue that when we create a method in the form of Extension

For verification of method exists or not in the run time, we can use Global::formHasMethod but it does not work with form extensions

So I advise everyone to use the below code is working... 

Source Link

using  System.Object;

using  Microsoft.Dynamics.Ax.Xpp;

using  System.Reflection;

    [ExtensionOf(classStr(Global))]

 final class Global_Extension

{

    static boolean formHasMethod(FormRun _fromRun, IdentifierName _methodName)

    {

        boolean flag= next formHasMethod(_fromRun, _methodName);

        if (flag==true)

        {

            flag= Global::VerifyformExtensionHasMethod(_fromRun, _methodName);

        }

        return ret;

    }

    private static boolean VerifyformExtensionHasMethod(FormRun _formRun, IdentifierName _methodName)

    {

        

        try

        {

            System.Object[] extensions = ExtensionClassSupport::GetExtensionsOnType(_formRun.GetType(), true);

            if (extensions)

            {

               System.Type    formExtensionType;

               MethodInfo    mInfo;

             

                var  bindingFlags = BindingFlags::Public | BindingFlags::Static | BindingFlags::IgnoreCase;

                for (int i = 0; i < extensions.Length; i++)

                {

                    formExtensionType= extensions.GetValue(i);

                    var info = formExtensionType.GetMethods(bindingFlags);

                    for (int J = 0; J < info .get_Length(); J++)

                    {

                        mInfo= info .getValue(J);

                        if (mInfo.Name == _methodName)

                        {

                            return true;

                        }

                    }

                }

            }

        }

        catch (Exception::CLRError)

        {

            error(CLRInterop::getLastException().ToString());

        }

        return false;

    }

}