小编Vit*_*nin的帖子

我正在研究以CSV格式导出数据的机制.我JSON使用jQuery以格式发送数据:

var data = JSON.stringify(dataToSend);
 $.post('DumpToCSV', { 'data': data });

然后在控制器中我生成一个CSV文件:

 public ActionResult  DumpToCSV(string data)
    {
        Response.Clear();

        XmlNode xml = JsonConvert.DeserializeXmlNode("{records:{record:" + data + "}}");

        XmlDocument xmldoc = new XmlDocument();
        //Create XmlDoc Object
        xmldoc.LoadXml(xml.InnerXml);
        //Create XML Steam 
        var xmlReader = new XmlNodeReader(xmldoc);
        DataSet dataSet = new DataSet();
        //Load Dataset with Xml
        dataSet.ReadXml(xmlReader);
        //return single table inside of dataset
        var csv = CustomReportBusinessModel.ToCSV(dataSet.Tables[0], ",");

        HttpContext context = System.Web.HttpContext.Current;
        context.Response.Write(csv);
        context.Response.ContentType = "text/csv";
        context.Response.AddHeader("Content-Disposition", …

我正在研究ASP .NET MVC 5 Web应用程序.我在用

[Authorize(Roles="administrator")] public class MyController:Controller{}

有没有办法为控制器动态添加新的授权角色？例如,从数据库或类似的东西中检索此信息,如下所示

[Authorize(Roles=db.MyControllerRoles)] public class MyController:Controller{}