asp.net mvc C＃List <>删除

Question

I have this

  var RadioMetaKey=((IEnumerable<SepiaWEB.Models.Jobs.JobsMeta>)ViewData["JobMeta"]).Where(m=>m.vcr_JobMetaKey==JobsMeta.vcr_JobMetaKey);   

var a=ViewData["JobMeta"]. as List<SepiaWEB.Models.Jobs.JobsMeta>;

a. RemoveAll(RadioMetaKey);  //not working

Is there a way i can use RadioMetaKey to remove from a list

Answer 1

You can pass a Predicate to RemoveAll :

var radioMetaKey=((IEnumerable<SepiaWEB.Models.Jobs.JobsMeta>)ViewData["JobMeta"])
    .Where(m=>m.vcr_JobMetaKey==JobsMeta.vcr_JobMetaKey);   

var a= ViewData["JobMeta"]. as List<SepiaWEB.Models.Jobs.JobsMeta>;
a.RemoveAll(x=> radioMetaKey.Contains(x));