Greetings everyone... I need to Trim
a String
. But I want to remove all the repeated blank spaces within the String itself, not only at the end or at the start of it. I could do it with a method like:
public static string ConvertWhitespacesToSingleSpaces(string value)
{
value = Regex.Replace(value, @"\s+", " ");
}
Which I got from here. But I want this piece of code to be called within the String.Trim()
itself, so I think I need to extend or overload or override the Trim
method... Is there a way to do that?
Thanks in advance.
In the Disk Management window, right-click on the C drive and select "Shrink Volume". This will open a new window where you can enter the amount of space you want to free up. Next, right-click on the other drives and select "Expand Volume". This will add the freed up space to the other drives.
You will be unable to extend C drive in Windows 10/11 Disk Management when there is no contiguous unallocated space. It is acceptable to get a proper unallocated space by deleting partition.
Since you cannot extend string.Trim()
. You could make an Extension method as described here that trims and reduces whitespace.
namespace CustomExtensions
{
//Extension methods must be defined in a static class
public static class StringExtension
{
// This is the extension method.
// The first parameter takes the "this" modifier
// and specifies the type for which the method is defined.
public static string TrimAndReduce(this string str)
{
return ConvertWhitespacesToSingleSpaces(str).Trim();
}
public static string ConvertWhitespacesToSingleSpaces(this string value)
{
return Regex.Replace(value, @"\s+", " ");
}
}
}
You can use it like so
using CustomExtensions;
string text = " I'm wearing the cheese. It isn't wearing me! ";
text = text.TrimAndReduce();
Gives you
text = "I'm wearing the cheese. It isn't wearing me!";
Is it possible? Yes, but only with an extension method
The class System.String
is sealed so you can't use overriding or inheritance.
public static class MyStringExtensions
{
public static string ConvertWhitespacesToSingleSpaces(this string value)
{
return Regex.Replace(value, @"\s+", " ");
}
}
// usage:
string s = "test !";
s = s.ConvertWhitespacesToSingleSpaces();
There's a yes and a no to your question.
Yes, you can extend existing types by using extension methods. Extension methods, naturally, can only access the public interface of the type.
public static string ConvertWhitespacesToSingleSpaces(this string value) {...}
// some time later...
"hello world".ConvertWhitespacesToSingleSpaces()
No, you cannot call this method Trim()
. Extension methods do not participate in overloading. I think a compiler should even give you a error message detailing this.
Extension methods are only visible if the namespace containing the type that defines the method is using'ed.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With