C#统计后排序,该怎么解决

C#统计后排序
有一个字符串string，3242615284293，把每个数出现的次数统计然后按出现次数排列出来，显示到textbox中。在线等，谢谢大家了。

[解决办法]
string s = "3242615284293";
var query = from x in s group x by x into g select new { g.Key, Count = g.Count() } orderby Count;
textBox1.Text = string.Join(";", query.Select(x => x.Key + ":" + x.Count));
[解决办法]

C# code

            string s = "3242615284293";            int[] times = new int[10] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };            foreach (char c in s)                times[int.Parse(c.ToString())]++;            string r = "";            for (int i = 0; i < times.Length; i++)                r += (string.Format("[{0}]:{1}; ", i, times[i]));            textBox1.Text = r;
[解决办法]
C# code
string str = "3242615284293";textBox1.Text = new string(str.GroupBy(v1 => v1).OrderBy(v1 => v1.Count()).Reverse().Select(v1 => v1.Key).ToArray());//24398516