Uwp 获取csproj 所有文件，并获取文件生成选项. Uwp Get all the files in the *.csproj.

GetAlltheFileInCsproj

        /// <summary>
        /// 获取csproj 所有文件，并获取文件生成选项
        /// Get all the files in the *.csproj
        /// </summary>
        /// <param name="doc">csproj 文件的XDocument</param>
        /// <returns>
        /// 文件路径和文件生成选项列表
        /// The List that include the file path and it's compile options
        /// </returns>
        public static List<PrjFile> GetPrjFile(XDocument doc)
        {
            var projectXml = doc.Root;
            var name = projectXml.Attribute("xmlns")?.Value;//NameSpace

            //如果只写 projectXml.Elements("ItemGroup")，结果null
            //It return null when use projectXml.Elements("ItemGroup") rather than use  projectXml.Elements(XName.Get("ItemGroup", name))
            //foreach (var file in projectXml.Elements(XName.Get("ItemGroup", name)))
            //{
            //    获取所有的项
            //    foreach (var temp in file.Elements())
            //    {
            //        prjFile.Add(new PrjFile()
            //        {
            //            File = temp.Attribute(XName.Get("Include")).Value,
            //            Form = temp.Name.LocalName  
            //        });
            //    }
            //}
            return (from file in projectXml.Elements(XName.Get("ItemGroup", name))
                from temp in file.Elements()
                select new PrjFile()
                {
                    File = temp.Attribute(XName.Get("Include")).Value,
                    Form = temp.Name.LocalName
                }).ToList();
        }