Cannot implicitly convert type 'System.Collections.Generic.List<>' to 'System.Collections.Generic.IEnumerable'
asp.net-mvc
c#
entity-framework
entity-framework-core
Question
I want to return list of string in function :
private async Task<IEnumerable<string>> GetAccessLevels(Guid roleId)
{
return await AccessLevels.Where(x => x.RoleId == roleId).Select(x=>new {x.Access }).ToListAsync();
}
But it show me this error :
Cannot implicitly convert type
'System.Collections.Generic.List<<anonymous type: string Access>>'to'System.Collections.Generic.IEnumerable<string>'. An explicit conversion exists (are you missing a cast?)
This is my model :
public Guid RoleId { get; set; }
public string Access { get ; set; }
How can I solve this problem?
Accepted Answer
Just change this:
Select(x => new { x.Access })
To This:
Select(x => x.Access)
The reason is, new makes your query to return an IEnumerable of Anonymous types, while you need an IEnumerable of Strings.
Popular Answer
I think you just need to do as follow:
private async Task<IEnumerable<string>> GetAccessLevels(Guid roleId)
{
return await AccessLevels.Where(x => x.RoleId == roleId).Select(x=> x.Access).ToListAsync();
}
No need to create an anonymous object in the Select.
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