Programming Assignment 5 Maintain Missions

Programming Assignment #5 Maintain Missions In this assignment

Maintain Missions In this assignment, you are to design an application, which will manage a listing of missionaries on staff at the Organization Go and Tell.

The company has several specifications for this application. This application must be able to display two of the organizations files that contain the missionaries in the field and the missionaries waiting for assignment. The application must be able to sort the display. When a new missionary is added to the organization the application must have the ability to accept this addition. When a missionary retires from the organization, the application must remove the missionary from the appropriate file.

The organization would like the application to display the number of missionaries in the field and in waiting while the program is running. Please see below for more specifications on the application. Helpful hints: 1. Design your form as depicted in the diagram below. 2.

The text files needed for this assignment should be placed in the bin\debug folder of the project. Note that you will not have a starting text file for either. Your program should create it when it doesn’t exist the first time it runs. 3. *You must include Your name, instructor as one of the default missionary names. Please use the example below to see how it should be displayed. This is a requirement or your application will not be accepted. There must be at least 10 names included for the missionaries when creating the files from the application. 4. Add the Company name at the top of the application 5. Before displaying the contents of the MissionaryInWaiting and MissionaryInField files in the initial load, make sure the files exist first.

You will need to use the IO.File.Exists method in your checks. 6. Your program will then populate the In Field listbox with the names of the missionaries listed in the MissionaryInField text file and populate the In Waiting listbox with the missionaries listed in the MissionaryInWaiting text file. 7. When a missionary is being sent to the field, the program should move it from the “MissionaryInWaiting” textfile into the “MissionaryInField” textfile.

8. When a missionary is done with his/her mission work, the application must be able to remove the name from the “MissionaryInField” textfile into the “MissionaryInWaiting” textfile. 9. The contents of the two text files should be displayed in listboxes when the application starts. After each “update”, the listboxes should be cleared and refreshed with the changes shown from the file.

10. Your application should also have a button to add more missionaries to the “MissionariesInWaiting “ text file. Your application will accept an item through user input and add it to the MissionariesInWaiting file and refresh the appropriate listbox. 11. Your application should also have a button to delete the missionary completely from the file the name is stored in. The application must check a name is selected before deleting. 12. The application will use the listbox count feature to display the number of missionaries for each file. This must be refreshed each time the file is updated. 13. The sort Button will sort both list boxes in ascending order. A quit button should be included to exit the application. 14. Do NOT use arrays to populate the listboxes, but instead, use LINQ queries that read directly from the text files. 15. Use the StreamWriter in conjunction with IO.File.AppendText to and IO.File.CreateText to append new directories and create new text files. (Note: You will need to use the WriteLine method to write the name of the new file to each text file.) 16. Use good programming practices by clearing the listboxes before refreshing them when a change is made that affects their contents. 17. Remember to close the files after accessing them. 18. To remove a listing from a directory, you want to select only those records in the file that are not the one the user wants to remove. 19. Include appropriate error checking (i.e., check to make sure something has been selected in one of the listboxes before trying to move it to the other listbox.). 20. Use appropriate naming conventions for all controls and variables. Make sure the form has a title. Include appropriate internal documentation (i.e., comments in your code).

Paper For Above instruction

The management of missionary organizations necessitates efficient procedures for tracking, scheduling, and resource allocation. The proposed application aims to facilitate the management of missionaries at the "Go and Tell" organization by deploying a user-friendly interface that streamlines data management, enhances operational efficiency, and ensures accurate record-keeping through file-based storage. This comprehensive solution encompasses features such as dynamic file handling, real-time data display, sorting functionalities, and error management.

The core functionality of this application involves maintaining two primary lists: missionaries in the field and those awaiting deployment. These lists are stored in separate text files, "MissionaryInField.txt" and "MissionaryInWaiting.txt," respectively. Upon initial launch, the application verifies the existence of these files using the IO.File.Exists method. If the files are missing, it then creates them to prevent runtime errors, embedding at least ten default names, including the developer's name and instructor, to demonstrate and validate functionality.

The user interface is designed with clarity and ease of use in mind. It includes listboxes for displaying the two lists, accompanied by labels, buttons for adding, removing, and sorting missionaries, and a quit button for terminating the application. The interface also displays the current count of missionaries in each list, updating dynamically after each modification to ensure accurate real-time data representation.

Adding a new missionary involves accepting input from the user through a text box, validating the input to prevent empty entries, and appending the name to the "MissionaryInWaiting.txt" file using StreamWriter and IO.File.AppendText. After the addition, the listbox displaying waiting missionaries is refreshed by reading directly from the file with LINQ queries, ensuring the data reflects the current state without using arrays.

Transferring missionaries between lists is handled via buttons that move names from the waiting list to the field list, and vice versa. These operations involve reading the respective files, filtering out the transferred names, and rewriting the files to reflect the change. Proper file handling practices are followed, including opening, writing, and closing files correctly to prevent resource leaks.

Deleting a missionary is facilitated through selecting the name in the listbox and confirming the deletion. The application checks if an item is selected before proceeding. The targeted name is then removed from the corresponding file by reading all entries, excluding the selected name, and rewriting the file with the remaining entries. The listboxes are refreshed afterward.

Sorting the lists in ascending order is implemented with LINQ queries that sort the contents read directly from the text files, ensuring the order is maintained accurately across sessions. Error handling is incorporated to manage invalid selections and empty input fields gracefully, providing user feedback through message boxes.

The application maintains a consistent and intuitive layout, adhering to good programming practices, including clear naming conventions for controls and variables. Comments are included throughout the code to enhance readability and facilitate maintenance. Overall, this solution aims to improve operational management in missionary organizations by providing an effective, reliable, and maintainable software tool.

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