我有我的查询用户可以通过首字母项目：

  repository.GetAll（）式（Q =＆GT; q.BrukerIdent.StartsWith（letter.ToString（）））。了ToList（）。
 

..其中 repository.GetAll（）返回的IQueryable＆LT;布鲁克＆GT; ， BrukerIdent 是包含用户名，而字母是一个char值进来的字符串。这完美的作品，但我也希望得到用户与数字开头。而且我不希望由不同的数字进行排序。

我的心中骂了 StartsWith（ D）但据我发现它不以这种方式工作。我也想过做一个10路或条款，但看​​起来像面条，而我不知道效率。

有没有正确的方式做到这一点是这样？

  repository.GetAll（）式（Q =＆GT; Char.IsNumber（q.BrukerIdent [0]））。
 

MSDN

  VAR数=可枚举
                     .Range（0，10）
                     。选择（ⅰ=＆GT; i.ToString（CultureInfo.InvariantCulture））;

//变种号码=新[] {0，1，2，3，4，5，6，7，8，9）;
//变种数=的HashSet＆LT; INT＆GT; {...};

变种Q =从B在repository.GetAll（）
        其中numbers.Contains（b.BrukerIdent.FirstOrDefault（）））// [0]
        选择B：
 

I have a project where I query users by first letter:

repository.GetAll().Where(q => q.BrukerIdent.StartsWith(letter.ToString())).ToList();

..where repository.GetAll() returns an IQueryable<Bruker>, BrukerIdent is a string that contains the username, and letter is a char-value coming in. This works perfectly, except that I also want to get users that starts with digits. And I don't want to sort by separate digits.

My mind yells for a StartsWith("d") but as far as I have found out it doesn't work this way. I have also thought of doing a 10-way OR clause, but that would look like spaghetti, and I'm not sure of the efficiency.

Is there any "right" way to do it like this?

repository.GetAll().Where(q => Char.IsNumber(q.BrukerIdent[0]))

MSDN

var numbers = Enumerable
                     .Range(0, 10)
                     .Select(i => i.ToString(CultureInfo.InvariantCulture));

// var numbers = new[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 );
// var numbers = HashSet<int> { ... };

var q = from b in repository.GetAll()
        where numbers.Contains(b.BrukerIdent.FirstOrDefault())) //[0]
        select b;