How to sort the richtextbox array with respect to X and Y?

See more:

C++/CLI

I want to sort this array with respect to x and when i tried this,same array is shown without sort .. please help


struct

struct Interval {
		double begin, end;
	};
	bool compareInterval(Interval i1, Interval i2)
	{
		return (i1.begin < i2.begin);	
	}
	bool compareInterval1(Interval i1, Interval i2)
	{
		return (i1.end < i2.end);
	}

What I have tried:

Converter<String^, double>^ converter = gcnew Converter<String^, double>(double::Parse);
	cli::array<double>^ SortX = Array::ConvertAll(richTextBox1->Lines, converter);
	cli::array<double>^ SortY = Array::ConvertAll(richTextBox2->Lines, converter);
	for (int j = 0; j < richTextBox1->Lines->Length; j++)
	{
		
			Interval arrx[] = {{SortX[j],SortY[j]} };

			int n = sizeof(arrx) / sizeof(arrx[0]);
			sort(arrx, arrx + n, compareInterval1);
			for (int i = 0; i < n; i++)
			{
				Console::Write(arrx[i].begin + "," + arrx[i].end + "\n");
				richTextBox4->AppendText(arrx[i].begin + "," + arrx[i].end + "\n");

			}