how to convert list of strings to list of guids

Question

I have following line of code which creates an list of strings.

List<string> tstIdss = model.Ids.Where(x => x.Contains(entityId)).Select(x => x.Split('_').First()).ToList();

I need to convert it into list of Guids. i.e. List<Guid> PermissionIds.

model.PermissionIds= Array.ConvertAll(tstIdss , x => Guid.Parse(x));

I tried the above way but getting the following error. model.PermissionIds is implemented as following in my model class.

public List<Guid> PermissionIds { get; set; }

Error 3

>>The type arguments for method 'System.Array.ConvertAll<TInput,TOutput>(TInput[], System.Converter<TInput,TOutput>)' 
    cannot be inferred from the usage. 
    Try specifying the type arguments explicitly.   

Answer 1

You can use Linq's Select and ToList methods:

model.PermissionIds = tstIdss.Select(Guid.Parse).ToList();

Or you can use the List<T>.ConvertAll method:

model.PermissionIds = tstIdss.ConvertAll(Guid.Parse);