Composite Thrashing Code Adron's success in misadventures of thrashing coding and calamity! Making Maths Functions n' Stuff Part 2

After completing the tests and functional methods for the other part of the solution in part 1, we’re jumping into getting the WPF application built.

First I started out by simply creating a new WPF application and renaming the default xaml form. After renaming remember to change the StartupUri property name in the App.xaml file so things startup appropriately.

   1:  <Application x:Class="Maths.App"

   2:      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

   3:      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

   4:      StartupUri="MathsCooking.xaml">

   5:      <Application.Resources>

6:

   7:      </Application.Resources>

   8:  </Application>

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, “Courier New”, courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

I then made the following changes the the MathsCooking.xaml form and added the events below.

   1:  <Window x:Class="Maths.Window1"

   2:      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

   3:      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

   4:      Title="Maths Cooking" Height="768" Width="1024">

   5:      <Grid>

   6:          <Button BorderThickness="3" Height="23" HorizontalAlignment="Left" Margin="332,123.638,0,0" Name="getApproximateEqualityButton" VerticalAlignment="Top" Width="150" Click="getApproximateEqualityButton_Click">Get Approximate Equality</Button>

   7:          <TextBox Height="23" HorizontalAlignment="Left" Margin="190,10,0,0" Name="textNumerator" VerticalAlignment="Top" Width="95" />

   8:          <TextBox Height="23" HorizontalAlignment="Left" Margin="190,87,0,0" Name="textValue" VerticalAlignment="Top" Width="95" />

   9:          <TextBox Height="23" HorizontalAlignment="Left" Margin="190,123,0,0" Name="textEpsilon" VerticalAlignment="Top" Width="95" />

  10:          <TextBox Height="23" HorizontalAlignment="Left" Margin="190,48,0,0" Name="textDenominator" VerticalAlignment="Top" Width="95" />

  11:          <Label Height="28" HorizontalAlignment="Left" Margin="10,10,0,0" Name="labelNumerator" VerticalAlignment="Top" Width="150">Numerator</Label>

  12:          <Label Height="28" HorizontalAlignment="Left" Margin="10,48,0,0" Name="labelDenominator" VerticalAlignment="Top" Width="150">Denominator</Label>

  13:          <Label Height="28" HorizontalAlignment="Left" Margin="10,123,0,0" Name="labelEpsilon" VerticalAlignment="Top" Width="150">Epsilon</Label>

  14:          <Label Height="28" HorizontalAlignment="Left" Margin="10,87,0,0" Name="labelValue" VerticalAlignment="Top" Width="150">A Value (Float or Double)</Label>

  15:          <Button BorderThickness="3" Height="23" HorizontalAlignment="Left" Margin="332,48.638,0,0" Name="getDecimalButton" VerticalAlignment="Top" Width="150" Click="getDecimalButton_Click">Get Decimal</Button>

  16:          <TextBox Height="65" HorizontalAlignment="Left" Margin="10,168,0,0" Name="textAnswers" VerticalAlignment="Top" Width="472" />

  17:      </Grid>

  18:  </Window>

The C# Code Behind file. (Eventually I’ll learn all the lingo for this WPF stuff, until then, you can just deal with my WinForm speak)

   1:  #region

2:

   3:  using System.Windows;

4:

   5:  #endregion

6:

   7:  namespace Maths

   8:  {

   9:      public partial class Window1 : Window

  10:      {

  11:          public Window1()

  12:          {

  13:              InitializeComponent();

  14:          }

15:

  16:          private void getDecimalButton_Click(object sender, RoutedEventArgs e)

  17:          {

  18:          }

19:

  20:          private void getApproximateEqualityButton_Click(object sender, RoutedEventArgs e)

  21:          {

  22:          }

  23:      }

  24:  }

Next in order was the effort to make the UI actually do some things.

   1:  #region

2:

   3:  using System;

   4:  using System.Windows;

   5:  using MathCookbook;

6:

   7:  #endregion

8:

   9:  namespace Maths

  10:  {

  11:      public partial class Window1 : Window

  12:      {

  13:          public Window1()

  14:          {

  15:              InitializeComponent();

  16:          }

17:

  18:          private void getDecimalButton_Click(object sender, RoutedEventArgs e)

  19:          {

  20:              textAnswers.Text = Functions.GetDecimalOfFraction(

  21:                  Convert.ToDouble(textNumerator.Text),

  22:                  Convert.ToDouble(textDenominator.Text)).ToString();

  23:          }

24:

  25:          private void getApproximateEqualityButton_Click(object sender, RoutedEventArgs e)

  26:          {

  27:              textAnswers.Text = Functions.IsApproximatelyEqualTo(

  28:                  Convert.ToDouble(textNumerator.Text),

  29:                  Convert.ToDouble(textDenominator.Text),

  30:                  Convert.ToDouble(textValue.Text),

  31:                  Convert.ToDouble(textEpsilon.Text)).ToString();

  32:          }

  33:      }

  34:  }

Now we can actually try out various numbers with a UI. Next we’ll tackle a few more additional methods and move towards some non-math related items. I needed the Math Library refresher so I’ve hit that library first.

Making Maths Functions n' Stuff Part 2

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