Answer 1

只需定义类似的演示文稿类型。您不必在构造函数中传递对象：

public class LanguageDisplayTextPresentation 
{
    public int Key { get; set; }
    public string Text { get; set; }
    public string Language { get; set; }
}

然后

var query = from t in iDictionaryContext.DisplayTexts
    from l in iDictionaryContext.Languages
    where
        t.LanguageID == l.LanguageID
    select new LanguageDisplayTextPresentation 
    {
        Key = t.DisplayKey,
        Text = t.DisplayText1,
        Language = l.LanguageName
    };