正确的案例标题案例问题

Question

我在这做错了什么？我希望用户名在输出中显示为正确但我无法弄明白.

string proper = this.xTripNameTextBox.Text;
CultureInfo properCase = System.Threading.Thread.CurrentThread.CurrentCulture;
TextInfo currentInfo = properCase.TextInfo;
proper = currentInfo.ToTitleCase(proper);

this.xTripOutputLabel.Text = proper +  Environment.NewLine + "The total gallons you would use: " + Output.ToString("0") + Environment.NewLine + "Total amount it will cost you: " + Coutput.ToString("C") + Environment.NewLine +" Your customer number is " + rnd1.Next(1, 1000).ToString(); 

Answer 1

我已经测试了以下全部大写单词,它的工作原理如下:

string proper = "TEST STRING";
CultureInfo properCase = System.Threading.Thread.CurrentThread.CurrentCulture;
TextInfo currentInfo = properCase.TextInfo;
proper = currentInfo.ToTitleCase(currentInfo.ToLower(proper));
// proper = "Test String"

所以 - 在调用之前将字符串更改为小写ToTitleCase.

的MSDN文档中并说,一个字符串,它是所有大写(例如,首字母缩写)将不被转换,并在后提供的示例代码证实了这一.