Instructions

Due date: $10/14/20242$:$00$:$00$ PM

Display AlbumName and SongName for all albums and songs. Order the results first by AlbumName in alphabetical order and then by SongName in alphabetical order.

Write a method called AvgGrades that computes the average of the grades in the lstGrades listBox. Return the computed average as a double.

private double AvgGrades$()$

Write a method called RangeCount that will return the count of the grades in IstGrades that are in the range specified by the lo and hi parameters $($from lo to hi inclusive$).$

private int RangeCount$($int lo$,$ int hi$)$

Write a method called SearchGrade that will return true if the grade to be searched for is found in the IstGrades list box or false if not found.

private bool SearchGrade$($int gradeToFind$)$

Write a method called FindGrade that will search for a grade in the IstGrades list box. This method should return the index where the grade is found or $-1$ if not found

private int FindGrade$($int gradeToFind$)$

Write a method called SaveFile that uses Streamwriter $($createText$)$ to save the grades from the IstGrades listBox to the name$/$location specified by the filename parameter.

private void SaveFile$($string filename$)$