This tutorial will teach how to make a Student Grade Calculation in WPF C#.net application step by step. Input the studentname and avg marks to calcuate the grade.
if the average is > 50 – Pass otherwise fail
First you have design the Calculator.
MainWindow.xaml
<Window x:Class="StudentMarksApp.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:local="clr-namespace:StudentMarksApp" mc:Ignorable="d" Title="Student Marks Calculation App" Height="350" Width="380"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="25"/> <RowDefinition Height="*"/> <RowDefinition Height="5"/> </Grid.RowDefinitions> <StackPanel Grid.Column="1" Grid.Row="1"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="100"/> <ColumnDefinition Width="250"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="25"/> <RowDefinition Height="5"/> <RowDefinition Height="25"/> <RowDefinition Height="5"/> <RowDefinition Height="25"/> <RowDefinition Height="5"/> <RowDefinition Height="25"/> <RowDefinition Height="5"/> <RowDefinition Height="25"/> <RowDefinition Height="5"/> <RowDefinition Height="25"/> <RowDefinition Height="10"/> </Grid.RowDefinitions> <Label Content="Marks 1 :" Grid.Row="0" Grid.Column="0" /> <TextBox x:Name="TextBoxMarks1" Grid.Row="0" Grid.Column="1" /> <Label Content="Marks 2 :" Grid.Row="2" Grid.Column="0" /> <TextBox x:Name="TextBoxMarks2" Grid.Row="2" Grid.Column="1" /> <Label Content="Marks 3 :" Grid.Row="4" Grid.Column="0" /> <TextBox x:Name="TextBoxMarks3" Grid.Row="4" Grid.Column="1" /> <Label Content="Total :" Grid.Row="6" Grid.Column="0" /> <TextBox x:Name="TextBoxTotal" Grid.Row="6" Grid.Column="1" /> <Label Content="Avg :" Grid.Row="8" Grid.Column="0" /> <TextBox x:Name="TextBoxAvg" Grid.Row="8" Grid.Column="1" /> <Label Content="Grade :" Grid.Row="10" Grid.Column="0" /> <TextBox x:Name="TextBoxGrade" Grid.Row="10" Grid.Column="1" /> </Grid> <StackPanel Grid.Row="16" Grid.ColumnSpan="2" Orientation="Horizontal"> <Button Width="50" Content="Cal" x:Name="ButtonCal" Margin="10 0 10 0" Click="ButtonCal_Click" Background="#FF04097E" Foreground="White"/> <Button Width="50" Content="Clear" x:Name="ButtonClear" Margin="10 0 10 0" Click="ButtonClear_Click" Background="#FF04097E" Foreground="White" /> </StackPanel> </StackPanel> </Grid> </Window>
MainWindow.xaml.cs
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
ButtonCal.Click += ButtonCal_Click;
ButtonClear.Click += ButtonClear_Click;
}
private void ButtonClear_Click(object sender, RoutedEventArgs e)
{
TextBoxMarks1.Text = "";
TextBoxMarks2.Text = "";
TextBoxMarks3.Text = "";
TextBoxTotal.Text = "";
TextBoxGrade.Text = "";
TextBoxAvg.Text = "";
TextBoxMarks1.Focus();
}
private void ButtonCal_Click(object sender, RoutedEventArgs e)
{
double marks1, marks2, marks3, tot, avg;
string grade;
marks1 = double.Parse(TextBoxMarks1.Text);
marks2 = double.Parse(TextBoxMarks2.Text);
marks3 = double.Parse(TextBoxMarks3.Text);
tot = marks1 + marks2 + marks3;
TextBoxTotal.Text = tot.ToString();
avg = tot / 3;
TextBoxTotal.Text = tot.ToString();
TextBoxAvg.Text = avg.ToString();
if(avg > 50)
{
grade = "Pass";
}
else
{
grade = "Fail";
}
TextBoxGrade.Text = grade;
}
}
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