\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Greg Finzer (GregFinzer)}
\pdfinfo{
  /Title (unity-container.pdf)
  /Creator (Cheatography)
  /Author (Greg Finzer (GregFinzer))
  /Subject (Unity Container Cheat Sheet)
}

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\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
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\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{74B7E8}
\definecolor{LightBackground}{HTML}{EDF6FC}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Unity Container Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Greg Finzer (GregFinzer)} via \textcolor{DarkBackground}{\uline{cheatography.com/15280/cs/28266/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Greg Finzer (GregFinzer) \\
  \uline{cheatography.com/gregfinzer} \\
        \uline{\seqsplit{www.kellermansoftware.com}}
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 9th June, 2021.\\
   Updated 9th June, 2021.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Essential Links}}  \tn
% Row 0
\SetRowColor{LightBackground}
Unity NuGet Package & \seqsplit{https://www.nuget.org/packages/Unity/} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Unity Registration by Convention NuGet Package & \seqsplit{https://www.nuget.org/packages/Unity.RegistrationByConvention/} \tn 
% Row Count 6 (+ 4)
% Row 2
\SetRowColor{LightBackground}
Overview & \seqsplit{https://www.tutorialsteacher.com/ioc/unity-container} \tn 
% Row Count 9 (+ 3)
% Row 3
\SetRowColor{white}
GitHub Repo & \seqsplit{https://github.com/unitycontainer/unity} \tn 
% Row Count 11 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Example Code}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{public interface ICar \newline \{ \newline   int Run(); \newline \} \newline  \newline public class Car : ICar \newline \{ \newline   private int \_miles; \newline  \newline   public int Run() \newline   \{ \newline     return ++\_miles; \newline   \} \newline \}	 \newline  \newline public class Driver \newline \{ \newline   private ICar \_car; \newline  \newline   public Driver(ICar car) \newline   \{ \newline     \_car = car; \newline   \} \newline  \newline   public void RunCar() \newline   \{ \newline     \seqsplit{Console.WriteLine("Running} \{0\} - \{1\} mile ", \_car.GetType().Name, \_car.Run()); \newline   \} \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Register and Resolve}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{IUnityContainer container = new UnityContainer(); \newline container.RegisterType\textless{}ICar, Car\textgreater{}(); \newline  \newline //Resolves dependencies and returns the Driver \newline Driver driver= container.Resolve\textless{}Driver\textgreater{}();  \newline driver.RunCar();} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Constructor Injection}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{{[}InjectionConstructor{]} \newline public Driver(ICar car) \newline \{ \newline     \_car = car; \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Property Injection}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{{[}Dependency{]} \newline public ICar Car \{ get; set; \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Register Types}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{//NuGet Package \seqsplit{Unity.RegistrationByConvention} \newline //The interface and class names must match \newline //ICar and Car \newline public static void \seqsplit{RegisterTypes(IUnityContainer} container) \newline \{ \newline   container.RegisterTypes( \newline     \seqsplit{AllClasses.FromLoadedAssemblies()}, \newline     \seqsplit{WithMappings.FromMatchingInterface}, \newline     WithName.Default); \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Register Types In Assembly}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{\seqsplit{RegisterTypesInAssembly(container},  \newline typeof(Car).Assembly); \newline  \newline public static void RegisterTypesInAssembly  \newline (IUnityContainer container, Assembly assembly) \newline \{ \newline   IEnumerable\textless{}Type\textgreater{} types = assembly.GetTypes() \newline     .Where(o =\textgreater{} o.IsClass \newline           \&\& !o.IsGenericType \newline           \&\& !o.IsAbstract \newline           \&\& \seqsplit{o.GetInterfaces().Any());} \newline  \newline   foreach (Type type in types) \newline   \{ \newline     \seqsplit{container.RegisterType(type.GetInterfaces()} \newline       .First(), type); \newline   \} \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}