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Vb.net Project: Sum the rows or columns of a two-dimensional array.

Create an application that either sums or averages the rows or columns of a two-dimensional array depending on user choices. Use the following data for the array:

5 7 3 9 12

4 8 9 13 4
0 -1 -7 13 8

4 4 4 4 0

Create a menu bar with a File menu that includes a Perform Action command and an Exit command. The Perform Action command computes either the sum or the average of the rows or columns in the array and displays the result in a message box. The Exit command exits the application.

Create a second menu on the menu bar called the Action menu. Add a Sum Rows command, Sum Columns command, Average Rows command, and Average Columns command to the Action menu. Use the RadioCheck and Check properties of each command to allow the user to select a command on the Action menu. The Perform Action command checks to see which command is selected on the Action menu to determine which operation to execute when the user clicks the Perform Action command.

Include appropriate shortcut keys for all commands. After the Perform Action command executes, the program should display the results in a message box. The message box should display results for each row or column separated by a ControlChars.NewLine character. The message box also should ask the user if they want to continue or to exit the application.

The array data should be displayed on your form in a row/column format when the program starts.

Submit only one file. The file should be a zip of all necessary files to demonstrate the program.



The contents of the 2 dimensional array are fixed as given
The user can choose to do one of the four calculations
the sums of columns
the sums of rows
the averages of columns
the averages of rows
The result should be displayed in a message box, with each sum or average starting in a new line, e.g.
Sum Rows





The user should be asked whether he or she wants to exit or continue.

Interface Design

Form for the Array Calculations
Create File menu and Action menu on the menus bar
Array application


Perform Action

Sum Rows

Sum Columns

Average Rows

Average Columns

shortcut keys for commands
The result Message box
Message and results
Title of the message box
YesNo message button
Default button

Declare the matrix as a global integer array
Code MenuItem event handler for Action Menu:
Code the MnuSumRow_Click, MnuSumColumn_Click,

MnuAverageRow_Click, MnuAverageColumn_Click event procedures.


Private Sub MnuSumRow_Click(.....)

MnuSumRow.Checked = True

MnuSumColumn.Checked = False

MnuAverageRow.Checked = False

MnuAverageColumn.Checked = False

End Sub

Code MenuItem event handlers for File Menu:
? Code MnuExit_Click event procedure

? Code MnuPerformAction_Click event procedure:

o If MnuSumRow.Checked Then sum the rows

o If MnuSumColumn.Checked Then sum the columns

o If MnuAverageRow.Checked Then average the rows

o If MnuAverageColumn.Checked Then average the columns

Solution Summary

This solution provides the vbproj (also as .sln and .suo) in an attached .zip file.