how to sort the array of x,y co-ordinate from the richtextbox in c++/cli with respect to X and Y

denesh neupane 121

i want to sort the richtextbox array with respect to x and y , i dont know how to do? please help

1 answer

Guido Franzke 2,196 Reputation points

2021-10-29T05:56:13.447+00:00
Hello,
this is a simple programming task (sounds like homework).

UpdateData the contents of the richeditcontrol to a string variable of the control

extract all lines to an integer (x,y)-array (e.g. while-loop, ipos=find(","), v.x=atoi(left(ipos), v.y=atoi(mid(ipos+1), append v to array a)

sort array as desired

generate string of array (e.g. for-loop, sz+=tostring(a[i].x) + "," + tostring(a[i].y) + "\r\n" )

output this string to the richeditcontrol
When you have problems with your code, you can ask (show the code that makes problems) and we will try to help you.
Regards, Guido
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denesh neupane 121 Reputation points

2021-10-29T06:24:28.19+00:00

Thankyou very much for your response , i used the following code from example on https://learn.microsoft.com/en-us/dotnet/api/system.array.sort?view=net-5.0 . but the result is shown as mention in the picture i was trying to sort in ascending order.

ref class myReverserClass : public IComparer { private: // Calls CaseInsensitiveComparer::Compare with the parameters reversed. virtual int Compare(Object^ x, Object^ y) = IComparer::Compare { /*double begin, end;*/ return ((gcnew CaseInsensitiveComparer)->Compare(y, x)); } }; void PrintKeysAndValues(cli::array<String^>^ x1, cli::array<String^>^ x2) { for (int i = 0; i < x1->Length; i++) { Console::WriteLine(" {0, -1}, {1}", x1[i], x2[i]); } Console::WriteLine(); }

cli::array<String^>^ x1 = gcnew cli::array<String^>(richTextBox1->Lines>Length);
x1 = richTextBox1->Lines;
cli::array<String^>^ x2= gcnew cli::array<String^>(richTextBox2->Lines->Length);
x2 = richTextBox2->Lines;
IComparer^ myComparer = gcnew myReverserClass;
Array::Sort(x1, x2);
PrintKeysAndValues(x1, x2);

Minxin Yu 10,031 Reputation points Microsoft Vendor

2021-10-29T06:59:13.99+00:00

Try to use Array.Reverse.

denesh neupane 121 Reputation points

2021-10-29T07:35:31.017+00:00

Thankyou for your response , actually problem is the last two number 1460 and 1040 has 4 digits and above one is 3 digits, if I input all the data with same bit then it will work .
if i use Array.Reverse then still there data will not arrange in order.. please help ??

Minxin Yu 10,031 Reputation points Microsoft Vendor

2021-10-29T08:18:42.463+00:00

It can be compared after converting string to int. I tested the code in the console.

using namespace System; int main(array<System::String ^> ^args) { cli::array<String^>^ ar1 = gcnew cli::array<String^>{ "13", "1", "4", "5", "2" }; cli::array<String^>^ ar2 = gcnew cli::array<String^>{ "3", "1", "4", "5", "2" }; cli::array<int^>^ ar3= gcnew cli::array<int^>(ar1->Length); for (int i = 0; i < ar1->Length; i++) { ar3[i] = Convert::ToInt32(ar1[i]); } Array::Sort(ar3, ar2); for (int i = 0; i < 5; i++) { Console::WriteLine(" {0, -1}, {1}", ar3[i], ar2[i]); } Console::WriteLine(); return 0; }

denesh neupane 121 Reputation points

2021-10-29T09:14:01.377+00:00

It worked .Thankyou so much

Minxin Yu 10,031 Reputation points Microsoft Vendor

2021-10-29T09:17:43.24+00:00

We 'are appreciated that you are satisfied with the help. If your case has been solved, please help to mark answers.
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