// StaticCharMethods.cs
// Demonstrates static character testing methods 
// from Char struct
using System;
using System.Windows.Forms;

namespace StaticCharMethods
{
   public partial class StaticCharMethodsForm : Form
   {
      // default constructor
      public StaticCharMethodsForm()
      {
         InitializeComponent();
      } // end constructor

      // handle analyzeButton_Click
      private void analyzeButton_Click( object sender, EventArgs e )
      {
         // convert string entered to type char
         char character = Convert.ToChar( inputTextBox.Text );
         string output;

         output = "is digit: " +
                    Char.IsDigit( character ) + "\r\n";
         output += "is letter: " +
                    Char.IsLetter( character ) + "\r\n";
         output += "is letter or digit: " +
                    Char.IsLetterOrDigit( character ) + "\r\n";
         output += "is lower case: " +
                    Char.IsLower( character ) + "\r\n";
         output += "is upper case: " +
                    Char.IsUpper( character ) + "\r\n";
         output += "to upper case: " +
                    Char.ToUpper( character ) + "\r\n";
         output += "to lower case: " +
                    Char.ToLower( character ) + "\r\n";
         output += "is punctuation: " +
                    Char.IsPunctuation( character ) + "\r\n";
         output += "is symbol: " + Char.IsSymbol(character) + "\r\n";
         outputTextBox.Text = output;
      } // end method analyzeButton_Click
   } // end class StaticCharMethodsForm
} // end namespace StaticCharMethods