Using Floats

   
 
/*
 * C# Programmers Pocket Consultant
 * Author: Gregory S. MacBeth
 * Email: gmacbeth@comporium.net
 * Create Date: June 27, 2003
 * Last Modified Date:
 * Version: 1
 */
using System;

namespace Client.Chapter_1___Common_Type_System
{
  public class UsingFloatsChapter_1___Common_Type_System {
    static void Main(string[] args)
    {
      float MyFloat = 3.281f;
      double MyDouble = 5E-02;
    }
  }
}

           
         
     


Int and float value


   
 
/*
Learning C# 
by Jesse Liberty

Publisher: O'Reilly 
ISBN: 0596003765
*/

 using System;

 public class IntFloatTester
 {
     public static void Main()
     {
         int smallInt = 5;
         int largeInt = 12;
         int intQuotient;
         intQuotient = largeInt / smallInt;
         Console.WriteLine("Dividing integers. {0} / {1} = {2}",
             largeInt, smallInt, intQuotient);

         float smallFloat = 5;
         float largeFloat = 12;
         float FloatQuotient;
         FloatQuotient = largeFloat / smallFloat;
         Console.WriteLine("Dividing floats. {0} / {1} = {2}",
             largeFloat, smallFloat, FloatQuotient);

     }
 }
           
         
     


Get Enum Description

   
 
//http://facebooktoolkit.codeplex.com/
//http://facebooktoolkit.codeplex.com/license
using System;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Text;

namespace Facebook.Utility
{
  ///<summary>
    /// Contains helper functions used to help when using enums inside of collections and serialization
  ///</summary>
  public class EnumHelper
  {
    private EnumHelper()
    {
    }

    ///<summary>
    ///</summary>
    ///<param name="enumeratedType"></param>
    ///<typeparam name="T"></typeparam>
    ///<returns></returns>
    ///<exception cref="ArgumentException"></exception>
    public static string GetEnumDescription<T>(T enumeratedType)
    {
      var description = enumeratedType.ToString();

      var enumType = typeof (T);
      // Can&#039;t use type constraints on value types, so have to do check like this
      if (enumType.BaseType != typeof (Enum))
        throw new ArgumentException("T must be of type System.Enum");

      var fieldInfo = enumeratedType.GetType().GetField(enumeratedType.ToString());

      if (fieldInfo != null)
      {
        var attributes = fieldInfo.GetCustomAttributes(typeof (DescriptionAttribute), false);

        if (attributes != null &amp;&amp; attributes.Length > 0)
        {
          description = ((DescriptionAttribute) attributes[0]).Description;
        }
      }

      return description;
    }

    ///<summary>
    ///</summary>
    ///<param name="enums"></param>
    ///<typeparam name="T"></typeparam>
    ///<returns></returns>
    ///<exception cref="ArgumentException"></exception>
    public static string GetEnumCollectionDescription<T>(Collection<T> enums)
    {
      var sb = new StringBuilder();

      var enumType = typeof (T);

      // Can&#039;t use type constraints on value types, so have to do check like this
      if (enumType.BaseType != typeof (Enum))
        throw new ArgumentException("T must be of type System.Enum");

      foreach (var enumeratedType in enums)
      {
        sb.AppendLine(GetEnumDescription(enumeratedType));
      }

      return sb.ToString();
    }
  }
}

   
     


Enum To Array

#region License
// (c) Intergen.
// This source is subject to the Microsoft Public License (Ms-PL).
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
// All other rights reserved.
#endregion

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;

namespace TextGlow.Control.Utilities
{
public static class EnumUtils
{
public static void sdf()
{
}

public static T[] EnumToArray() where T : struct
{
//get the enumeration type
Type et = typeof(T);
T defaultValue = default(T);

//get the public static fields (members of the enum)
FieldInfo[] fi = et.GetFields(BindingFlags.Static | BindingFlags.Public);

//create a new enum array
T[] values = new T[fi.Length];

//populate with the values
for (int i = 0; i < fi.Length; i++) { values[i] = (T)fi[i].GetValue(defaultValue); } //return the array return values; } } } [/csharp]

Try to parse Enum

   
 


namespace System
{
  public static class EnumExtensions
  {
    /// <summary>
    /// Tries the parse.
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="theEnum">The enum.</param>
    /// <param name="valueToParse">The value to parse.</param>
    /// <param name="returnValue">The return value.</param>
    /// <returns></returns>
    public static bool TryParse<T>(this Enum theEnum, string valueToParse, out T returnValue)
    {
      returnValue = default(T);
      int intEnumValue;
      if (Int32.TryParse(valueToParse, out intEnumValue))
      {
        if (Enum.IsDefined(typeof (T), intEnumValue))
        {
          returnValue = (T) (object) intEnumValue;
          return true;
        }
      }
      return false;
    }
  }
}

   
     


Wrap an enumerable so that clients can't get to the underlying implementation via a down-case

   
 
        
//******************************
// Written by Peter Golde
// Copyright (c) 2004-2007, Wintellect
//
// Use and restribution of this code is subject to the license agreement 
// contained in the file "License.txt" accompanying this file.
//******************************

using System;
using System.Collections;
using System.Collections.Generic;


namespace Wintellect.PowerCollections
{
  /// <summary>
  /// A holder class for various internal utility functions that need to be shared.
  /// </summary>
    internal static class Util
    {

        /// <summary>
        /// Wrap an enumerable so that clients can&#039;t get to the underlying
        /// implementation via a down-case
        /// </summary>
        /// <param name="wrapped">Enumerable to wrap.</param>
        /// <returns>A wrapper around the enumerable.</returns>
        public static IEnumerable<T> CreateEnumerableWrapper<T>(IEnumerable<T> wrapped)
        {
            return new WrapEnumerable<T>(wrapped);
        }
        /// <summary>
        /// Wrap an enumerable so that clients can&#039;t get to the underlying 
        /// implementation via a down-cast.
        /// </summary>
        class WrapEnumerable<T> : IEnumerable<T>
        {
            IEnumerable<T> wrapped;

            /// <summary>
            /// Create the wrapper around an enumerable.
            /// </summary>
            /// <param name="wrapped">IEnumerable to wrap.</param>
            public WrapEnumerable(IEnumerable<T> wrapped)
            {
                this.wrapped = wrapped;
            }

            public IEnumerator<T> GetEnumerator()
            {
                return wrapped.GetEnumerator();
            }

            IEnumerator IEnumerable.GetEnumerator()
            {
                return ((IEnumerable)wrapped).GetEnumerator();
            }
        }
   }
}