cpp gui-application sql visual-cpp winforms

Employee Database Management System

Store, manage and create database of the employees based on their payroll using GUI application with SQL database.

Prerequisites

Make sure you have installed all of the following prerequisites on your development machine :

Visual Studio 2022 - Download & install Desktop development with C++ and .Net desktop development workloads.
.NET Framework 4.8.1 Developer Pack - The developer pack is used by software developers to create applications that run on .NET Framework, typically using Visual Studio.
MySQL Community (GPL) - Download MSI installer and install full MySQL tools that includes server, shell and workbench.

Tech

Visual C++ Winforms
.NET Framework v4.8.1
MySQL Server 8.0

Documentation

There is a lot of stuff to understand so that you have the application running on the development machine. Following are the steps that explain both general concepts and development process to run the application in debugging mode :

Create Database in MySQL

Start MySQL Server 8.0 as localhost (default Port 3306) with root user using Command Prompt in directory C:\Program Files\MySQL\MySQL Server 8.0\bin :

mysql -u root -p

Create new schema employeedb and execute SQL Script to create a table employeedb with the required fields :

CREATE TABLE `employeedb`.`employeedb` (
  `ID` VARCHAR(10) NOT NULL,
  `Firstname` VARCHAR(50) NOT NULL,
  `Surname` VARCHAR(50) NOT NULL,
  `Address` VARCHAR(200) NOT NULL,
  `Gender` VARCHAR(10) NOT NULL,
  `Mobile` VARCHAR(15) NOT NULL,
  `Weight` INT NOT NULL,
  `Salary` INT NOT NULL,
  `OverTime` INT NOT NULL,
  `OtherPay` INT NOT NULL,
  `Tax` VARCHAR(20) NOT NULL,
  `Pension` VARCHAR(20) NOT NULL,
  `StudLoan` VARCHAR(20) NOT NULL,
  `HIPay` VARCHAR(20) NOT NULL,
  `PayDate` VARCHAR(30) NOT NULL,
  `TaxPeriod` INT NOT NULL,
  `IFSCcode` VARCHAR(45) NOT NULL,
  `AccountNo` VARCHAR(45) NOT NULL,
  `PANCode` VARCHAR(45) NOT NULL,
  `Taxable` VARCHAR(20) NOT NULL,
  `Pensionable` VARCHAR(20) NOT NULL,
  `NetPay` VARCHAR(20) NOT NULL,
  `GrossPay` VARCHAR(20) NOT NULL,
  `Deductions` VARCHAR(20) NOT NULL,
  PRIMARY KEY (`ID`));

Run/Debug the project

Clone repository or download directory CppEmployee and open CppEmployee.sln using Visual Studio.
Run project using Local Windows Debugger.

Create from scratch

Create a new project in Visual Studio with template CLR Empty Project (.NET Framework).
Configure your new project with project name CppEmployee and select .NET Framework 4.8.1.
Open project properties. On the dialog box that appears, in the Configuration Properties, set Linker as follows :
- System - set SubSystem to Windows(/SUBSYSTEM:WINDOWS).
- Advanced - in the Entry Point type Main.
Verify Configuration Manager is set for Debug x64 for both active solution and project.
Apply changes to the dialog.
Add new item to the project. On the dialog box that appears, in the Visual C++ select UI and add Windows Forms with default name MyForm.h.
Replace MyForm.cpp in project with the MyForm.cpp file available in repository.
Debug or run the project with Local Windows Debugger. Close the windows dialog and restart the project.
Add reference to the project, MySql.Data.dll.
Replace MyForm.h in project with the MyForm.h file available in repository.
Now debug/run the project to view the final build.

Method to input data

The user has to input data in the following fields only :

Field	Description
Firstname	First name of the employee
Surname	Last name of the employee
Address	Residence address of the employee
Gender	Gender of the employee
Mobile	Contact number of employee
City Weight	City allowance offered by the organization
Basic Salary	The core of the salary received by an employee.
Over Time	Overtime allowance offered by the organization
Other Payment	Bonus or other additional amount
Paydate	The date on which salary is credited to employee
Tax period	Period for which Tax is required to be paid.
IFSC code	Salary account IFSC code
Account No	Salary account number
PAN Code	PAN code of the employee
Search	Search an employee using Firstname

Automated fields

Following text fields are calculated automatically by the application when the user clicks on Total/Add button to create a new tuple and store the data :

Field	Description
Ref No	Random unique number to store an entity
Tax	`9% of (City allowance + Basic Salary + Over Time)`
Pension	`12% of (City allowance + Basic Salary + Over Time)`
Student Loan	`5% of (City allowance + Basic Salary + Over Time)`
Health Insurance (HI) Payment	`3% of (City allowance + Basic Salary + Over Time)`
Taxable Pay	`Taxable Pay = Tax Period`
Pensionable Pay	`Pension * Tax period`
Gross Pay	`City allowance + Basic Salary + Over Time + Other Payent`
Deductions	`Tax + Pension + Student Loan + HI Payment`
Net Pay	`Gross Pay - Deductions`

How to use the project

The functionalities of the project are explained below :

Total / Add

To create a new entity into database, fill the required input fields and press Total/Add button. The remaining empty fields are automated.

Update

The user can modify any cell data by selecting a tuple from data grid to view data in fields then make modifications in textbox and press Update button.

Pay Slip

Rich textbox is where detailing of the pay amount given is concluded, inlcuding all the tax and insurance deducted. The user can make any corrections in the pay slip at this moment.

Print

Create a pdf or print the pay slip using Print button. The dialog box will pop-up to preview the final document.

Delete

Select a tuple from data grid and press Delete to remove that employee from the database.

Search

Find the employee using firstname. Press Search to display data of employee in the data grid.

Refresh

Press Refresh to view all the entities after any modifications or changes in database. After search press this button to set data grid to default state.