在ax 2012组件中动态添加方法

Question

我想在ax 2012中给一个组件动态添加一个方法，如何通过代码实现？可能吗？

Answer 1

这是我写的一份工作，它演示了一堆不同的方法来做你想做的事情：

static void Job79(Args _args)
{
    TreeNode        treeNode = TreeNode::findNode(@'\Classes\Activities');
    SysDictClass    sysDictClass = new SysDictClass(treeNode.applObjectId());
    FormRun         formRun = new FormRun(new Args(formStr(AifAction)));
    Form            form = new Form(formStr(AifAction));
    ClassBuild      classBuild;
    SysDictTable    sysDictTable = new SysDictTable(tableNum(AccountSumMap)); // Maps are treated like tables
    SysDictMethod   sysDictMethod;
    int             i;
    MemberFunction  method;
    str             methodSource = 'public static str getTime()\n{\n\treturn "3/3/2015";\n}';


    // Find if class has a method
    if (sysDictClass.hasObjectMethod('delete'))
    {
        info("Found object method delete");
    }

    if (sysDictClass.hasStaticMethod('main'))
    {
        info("Found static method main");
    }

    // Find if form has a method
    if (formHasMethod(formRun, 'init'))
    {
        info("Found form method 'init'");
    }


    if (form.AOTfindChild('methods').AOTfindChild('refreshGrid') != null)
    {
        info("Found 'refreshGrid' method on AifAction");
    }


    if (sysDictClass.hasStaticMethod('getTime') == false)
    {
        classBuild = new ClassBuild(sysDictClass.name());

        treeNode = classBuild.addMethod('getTime', methodSource);

        if (classBuild.classNode().AOTcompile())
        {
            classBuild.classNode().AOTsave();
            info("Added method getTime, compiled, and saved");
        }
        else
        {
            info(strFmt("Unable to compile method 'getTime' with source code '%1', restoring class...", treeNode.AOTgetSource()));
            // Delete the non-compiling method
            if (treeNode)
                treeNode.AOTdelete();

            classBuild.classNode().AOTsave();
        }

    }
    else
    {
        info("Method 'getTime' already exists");
    }

    if (sysDictTable.isMap())
    {
        if (sysDictTable.doesMethodExist('getTime') == false)
        {
            treeNode = sysDictTable.treeNode().AOTfindChild('methods').AOTadd('getTime');
            method = sysDictTable.treeNode().AOTfindChild('methods').AOTfindChild('getTime');
            method.AOTsave();
            method.AOTsetSource(methodSource, true);
            method.AOTsave();


            if (sysDictTable.treeNode().AOTcompile())
            {
                sysDictTable.treeNode().AOTsave();
                info(strFmt("Added 'getTime' to AccountSumMap"));
            }
            else
            {
                info(strFmt("Unable to compile method 'getTime' with source code '%1', restoring class...", treeNode.AOTgetSource()));

                // Delete the non-compiling method
                if (treeNode)
                    treeNode.AOTdelete();

                sysDictTable.treeNode().AOTsave();
            }
        }
    }
}

Answer 2

private void findOrCreateTimeStamp(
        SysVersionControlTmpItem                _item)
{
    str                             timeStamp;
    UtilElements                    utilElement;
    SysDictClass                    dictClass;
    ClassBuild                      classBuild;
    SysVersionControlTmpItem        item            = _item;
    str                             methodName      = "csGetVersion";
    int                             time            = timenow();
    TreeNode                        treeNode        = TreeNode::findNode(item.ItemPath);

    utilElement = treeNode.utilElement();            

    timeStamp   = date2Str(
                        today(),
                        321,
                        DateDay::Digits2,
                        DateSeparator::Slash, 
                        DateMonth::Digits2,
                        DateSeparator::Slash,
                        DateYear::Digits4,
                        DateFlags::None);

    timeStamp   = timeStamp + "_"                                           +
                        num2str0(time div 3600, 2, 0, 0, 0) + "_"           +
                        num2Str0(time mod 3600 div 60, 2, 0, 0, 0) + "_"    +
                        num2Str0(time mod 3600 mod 60, 2, 0, 0, 0);

    if (utilElement.recordType == UtilElementType::Class)
    {
        dictClass   = new SysDictClass(className2Id(utilElement.name));
        classBuild  = new ClassBuild(utilElement.name, true);

        if (dictClass.hasStaticMethod(methodName))
        {
            //Override method here, since the method already exists in the component.
            classBuild.overrideMethod(methodName,
                                        @"public static str csGetVersion()" +
                                        "{"                                 +
                                            "return '" + timeStamp + "';"   +
                                        "}"); 
        }
        else
        {
            //Make a new method here since it does'nt exist in the component.
            classBuild.addMethod(methodName,
                                        @"public static str csGetVersion()" +
                                        "{"                                 +
                                            "return '" + timeStamp + "';"   +
                                        "}"); 
        }

        classBuild.classNode().AOTcompile();    
    }
}

以上方法是参考之前的回答和其他专业人士创建的。它首先验证该方法是否存在于 class 中。如果找到它会覆盖其他创建新方法。对于其他元素，如 Tables、Forms 和 Maps，我们可以用类似的方式实现。

在ax 2012组件中动态添加方法

Add a method dynamically in ax 2012 component

axapta

dynamic-method

dynamics-ax-2012

dynamics-ax-2012-r2