comparisonType: OrdinalIgnoreCase))' 无法翻译

Question

如何正确实现字符串比较？请参阅下面我的代码。注释掉的代码 有效，但我需要忽略这种情况。我收到错误消息：“comparisonType: OrdinalIgnoreCase))' 无法翻译。”

public async Task<List<MyClass>> GetMyTaskAsync(string? str)
{   
    var myVar = await (from e in _whDbContext.PluralizedMyClass
                               //where e.MyCol == str                                  
                               where string.Equals(str,e.MyCol.ToString(), StringComparison.OrdinalIgnoreCase)
                               select e).ToListAsync();

    return myVar;
}

Answer 1

public async Task<List<MyClass>> GetMyTaskAsync(string? str)
{   
    var myVar = await (from e in _whDbContext.PluralizedMyClass
                       where str == null || EF.Functions.Like(e.MyCol, str)
                       select e).ToListAsync();

    return myVar;
}

StringComparison.OrdinalIgnoreCase

导致了该问题，因为 Entity Framework Core (EF Core) 不支持翻译

string.Equals