Convert all first letter to upper case, rest lower for each word

string s = "THIS IS MY TEXT RIGHT NOW";s = System.Threading.Thread.CurrentThread.CurrentCulture.TextInfo.ToTitleCase(s.ToLower());

I probably prefer to invoke the ToTitleCase from CultureInfo (System.Globalization) than Thread.CurrentThread (System.Threading):

string s = "THIS IS MY TEXT RIGHT NOW";s = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(s.ToLower());

But it should be the same as jspcal's solution.

EDIT

Actually, those solutions are not the same: CurrentThread --calls--> CultureInfo!

System.Threading.Thread.CurrentThread.CurrentCulture

string s = "THIS IS MY TEXT RIGHT NOW";s = System.Threading.Thread.CurrentThread.CurrentCulture.TextInfo.ToTitleCase(s.ToLower());IL_0000:  ldstr       "THIS IS MY TEXT RIGHT NOW"IL_0005:  stloc.0     // sIL_0006:  call        System.Threading.Thread.get_CurrentThreadIL_000B:  callvirt    System.Threading.Thread.get_CurrentCultureIL_0010:  callvirt    System.Globalization.CultureInfo.get_TextInfoIL_0015:  ldloc.0     // sIL_0016:  callvirt    System.String.ToLowerIL_001B:  callvirt    System.Globalization.TextInfo.ToTitleCaseIL_0020:  stloc.0     // s

System.Globalization.CultureInfo.CurrentCulture

string s = "THIS IS MY TEXT RIGHT NOW";s = System.Globalization.CultureInfo.CurrentCulture.TextInfo.ToTitleCase(s.ToLower());IL_0000:  ldstr       "THIS IS MY TEXT RIGHT NOW"IL_0005:  stloc.0     // sIL_0006:  call        System.Globalization.CultureInfo.get_CurrentCultureIL_000B:  callvirt    System.Globalization.CultureInfo.get_TextInfoIL_0010:  ldloc.0     // sIL_0011:  callvirt    System.String.ToLowerIL_0016:  callvirt    System.Globalization.TextInfo.ToTitleCaseIL_001B:  stloc.0     // s

References:

• CultureInfo Class
• Thread.CurrentCulture Property

There are a couple of ways to go about converting the first character of a string to upper case.

The first way is to create a method that simply caps the first character and appends the rest of the string using a substring:

public string UppercaseFirst(string s){    return char.ToUpper(s[0]) + s.Substring(1);}

The second way (which is slightly faster) is to split the string into a character array and then rebuild the string:

public string UppercaseFirst(string s){    char[] a = s.ToCharArray();    a[0] = char.ToUpper(a[0]);    return new string(a);}