Capitalize fiirst letter of each word in textbox

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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 :

C#

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);
        }

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

Posted 16-Dec-12 23:13pm

Husain Sabir

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5 solutions

Solution 6

check this solution

C#

using System.Globalization;
        private void txtX_Leave(object sender, EventArgs e)
        {
            txtX.Text = ToSentenceCase(txtX.Text);
        }

        public  string ToSentenceCase(string strSen)
        {
            TextInfo myTI = new CultureInfo("en-US", false).TextInfo;
            return myTI.ToTitleCase(strSen);
        }

Posted 20-Dec-12 1:55am

Menon Santosh

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Abhinav S · Accepted Answer · 2012-12-16T23:15:00

Solution 1

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[^].

Posted 16-Dec-12 23:15pm

Abhinav S

Updated 16-Dec-12 23:16pm

v2

Comments

Husain Sabir 17-Dec-12 5:25am

I'm using the same code.But it isn't working.

Jibesh · Accepted Answer · 2012-12-16T23:18:00

Solution 2

its this code creating problems for you.

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

and assigning like this array[i]

C#

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!!
      }
    }
}

Posted 16-Dec-12 23:18pm

Jibesh

Updated 16-Dec-12 23:41pm

v3

Comments

Husain Sabir 17-Dec-12 5:26am

thats because i is initialzed to 1.

Jibesh 17-Dec-12 5:30am

Ok sorry I get the point you should not use i-1, just check i and set the toArray i+1 because the char followed by the space has to be converted to Upper. Check my updated solution,

Husain Sabir 17-Dec-12 5:36am

still not working.
this is what i enter : 'husain sabir'
this is what i get : 'husain sabir'

Jibesh 17-Dec-12 5:42am

are you sure you code look like this
array[i+1] = char.ToUpper(array[i+1]);

Husain Sabir 17-Dec-12 5:53am

yes.its is like this.

Jibesh 17-Dec-12 5:56am

It should work for sure! can you post your change here to double check on what you did.

Husain Sabir 17-Dec-12 6:01am

maybe i'm having problems in calling the function.
is this the right way:
private void txtName_Leave(object sender, EventArgs e)
{
CapitalizeFirstLetters(txtManufacturerName.Text);
}

Jibesh 17-Dec-12 6:02am

private void txtName_Leave(object sender, EventArgs e)
{
txtManufacturerName.Text = CapitalizeFirstLetters(txtManufacturerName.Text);
}

Husain Sabir 17-Dec-12 6:09am

yup.figured that out.
thank you for the time and effort.

__TR__ · Accepted Answer · 2012-12-16T23:34:00

Solution 3

Here is a sample approach

C#

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);

Posted 16-Dec-12 23:34pm

__TR__

Comments

Husain Sabir 17-Dec-12 5:51am

this one works.but it doesn't show.
i mean when i put a breakpoint and see,the outpu comes as "Husain Sabir".but the textbox still shows it as "husain sabir".
i'm calling the function in the leave event of my textbox like this:
private void txtName_Leave(object sender, EventArgs e)
{
Capital(txtManufacturerName.Text);
}

where 'Capital' is the name of the function where your code is written.

__TR__ 17-Dec-12 5:57am

What is the Capital method doing? Does it assign the output to the textbox or does it just return the string ?

Husain Sabir 17-Dec-12 6:08am

got the solution.
and your solution also works.
thanks!

__TR__ 17-Dec-12 6:12am

You are welcome.

Jibesh 17-Dec-12 6:00am

You need to set the changed text back to the textbox.Text property to display the modified text. by calling the method you pefromed only the conversion to display it update the TextBox.Text property.

Husain Sabir · Accepted Answer · 2012-12-17T00:06:00

The solution was not in the code but in the way of calling the function.
this is the way i did it:

C#

private void txtName_Leave(object sender, EventArgs e)
        {
            txtManufacturerName.Text = CapitalizeFirstLetters(txtManufacturerName.Text);
        }

thanks everyone for the help.