Uppercase problems

Question

How can I output this when I'm using Replace and ToUpper in visual studio c#

FirstName

Here's my code:

private void button1_Click(object sender, EventArgs e)
{
    string input;
    input = comboBox1.Text;
    input = input.Replace("_", "");
    label1.Text = input.First().ToString().ToUpper() 
                     + String.Join("", input.Skip(1));    
}

The output is always this:

Firstname

Do you have an example of the input? – Sayse Jun 27 '14 at 07:38 — Sayse, Jun 27 '14 at 07:38

score 2 · Answer 1 · answered Jun 27 '14 at 07:47

2

If the input is "first_name" then this works:

var text = "first_name";

text = String.Join("",
    text
        .Split('_')
        .Where(x => !String.IsNullOrEmpty(x))
        .Select(x => new string(
            x
                .Take(1)
                .Select(c => char.ToUpperInvariant(c))
                .Concat(x.Skip(1))
                .ToArray())));

answered Jun 27 '14 at 07:47

Enigmativity

113,464
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What if it came from my database? – Amped Jun 27 '14 at 08:12
@user3643111 - What do you mean? – Enigmativity Jun 27 '14 at 11:43

score 0 · Answer 2 · answered Jun 27 '14 at 08:03

This code below gets the first character (of type char) of input string then cast it to string and make that first letter upper case:

input.First().ToString() + ...

in next segment of your code you add up the rest of the string with emtpy string seporator with your first letter:

... + String.Join("", input.Skip(1))

So if you want to make all first letters upper case you should use LINQ provided by Enigmativity.

Uppercase problems

2 Answers2