将文本框中每个单词的第一个字母大写 [英] Capitalize fiirst letter of each word in textbox

问题描述

我正在尝试修改文本框中的文本，这样如果我输入''husain sabir''，它就会变成''Husain Sabir''。

这是我试过的代码：

Hi,
I am trying to modify the text in a textbox such that if I enter ''husain sabir'',it should become ''Husain Sabir''.
This is the code i tried :

public static string CapitalizeFirstLetters(string sValue)
        {
            char[] array = sValue.ToCharArray();
            // handle the first letter in the string
            if (array.Length >= 1)
            {
                if (char.IsLower(array[0]))
                {
                    array[0] = char.ToUpper(array[0]);
                }
            }

            // scan through the letters, checking for spaces
            for (int i = 1; i < array.Length; i++)
            {
                if (array[i - 1] == ' ')
                {
                    if (char.IsLower(array[i]))
                    {
                        array[i] = char.ToUpper(array[i]);
                    }
                }
            }

            return new string(array);
        }

但是它没有用。有人可以帮帮我吗？

But its not working.Can someone please help me out?

推荐答案

尝试 http://www.dotnetperls.com/uppercase-first-letter [ ^ ]。



如果您想使用扩展方法，请尝试 http://www.codemeit.com/code-collection/c-to-upper-case-first-letter-of-a-string.html [ ^ ] 。

Try http://www.dotnetperls.com/uppercase-first-letter[^].

If you want to use extension methods, try http://www.codemeit.com/code-collection/c-to-upper-case-first-letter-of-a-string.html[^].

它的代码为你创造了问题。



你这样检查if（array [i - 1] = =''''）



和像这个数组一样分配[i]

its this code creating problems for you.

You are checking like this if (array[i - 1] == '' '')

and assigning like this array[i]

for (int i = 1; i < array.Length; i++)
{
  if (array[i] == ' ')
  {
    if (char.IsLower(array[i+1]))
     {
        array[i+1] = char.ToUpper(array[i+1]); // space is identified at Index i so next i+1 has to converted to Upper!!
      }
    }
}

这是一个示例方法

Here is a sample approach

string Sampleinput = "husain sabir";
       string Output = "";
       string[] inputWords = Sampleinput.Split(" ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);

       foreach (string word in inputWords)
       {
           char[] a = word.ToCharArray();
           a[0] = char.ToUpper(a[0]);
           Output += new string(a) + " ";
       }
       Console.WriteLine(Output);

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