T4方法。在继承的基类上使用空

Question

我正在尝试获取基类的所有属性。我能够获得基类（cls.Parent）并获取基类上的所有方法，但是当迭代方法并获取method.Attributes时，它总是为空。

如何获取基类中方法的属性？

谢谢！

编辑：这是相关代码：

    void LoadAPICalls() {

    IEnumerable<CodeElement> allClasses = VisualStudioHelper.CodeModel.GetAllCodeElementsOfType(VisualStudioHelper.CurrentProject.CodeModel.CodeElements, vsCMElement.vsCMElementClass, false);

    foreach(CodeClass item in allClasses) {
        if (!VisualStudioHelper.CodeModel.GetAllBaseClasses(item).Any(c => c.FullName == "System.Web.Http.ApiController"))
            continue;

        //Write out the class here.
        System.Text.StringBuilder sb = new System.Text.StringBuilder();
        var className = item.FullName.Substring(item.FullName.LastIndexOf(".") + 1).Replace("Controller", "");
#>export class <#=className#>
{<#+
        var curItem = item;
        while (true) {
            var allMethods = VisualStudioHelper.CodeModel.GetAllMethods(curItem);
            foreach(CodeFunction method in allMethods) {       

                IEnumerable<CodeElement> allAttributes = VisualStudioHelper.CodeModel.GetAllCodeElementsOfType(method.Attributes, vsCMElement.vsCMElementAttribute, true);       
                foreach (CodeElement attribute in allAttributes)
                {
                    if (attribute.Kind != vsCMElement.vsCMElementAttribute)
                        continue;

                    switch(attribute.FullName) {
                        case "System.Web.Http.HttpPostAttribute": 
                            WriteHttpPost(className, method, sb);
                            break;
                        case "System.Web.Http.HttpGetAttribute": 
                            WriteHttpGet(className, method, sb);
                            break;
                        case "System.Web.Http.HttpPutAttribute": 
                            WriteHttpPut(className, method, sb);
                            break;
                        case "System.Web.Http.HttpDeleteAttribute":
                            WriteHttpDelete(className, method, sb);
                            break;
                    }
                }
            } 
            curItem = VisualStudioHelper.CodeModel.GetBaseClass(curItem);
            if (curItem == null)
                break;
        }

        #>    
}