\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{abyssmint}
\pdfinfo{
  /Title (dot-net-cheat-sheet.pdf)
  /Creator (Cheatography)
  /Author (abyssmint)
  /Subject (Dot Net Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\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
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\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}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\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{Dot Net Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{abyssmint} via \textcolor{DarkBackground}{\uline{cheatography.com/156826/cs/33290/}}}
\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}abyssmint \\
  \uline{cheatography.com/abyssmint} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 21st July, 2022.\\
   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*}{3}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Asynchronous JavaScript \& XML (AJAX)}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Technique for accessing web servers from a web page.} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Modifies only a portion of the displayed page without the need to reload the whole document file} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Enables more interactivity not possible in the traditional web applications using synchronous request and response model} \tn 
% Row Count 7 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Partial Page Update}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{A mark up file (.cshtml) that renders HTML output wihtin another markup file's rendered output} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{In controller: return(PartialView ("\_viewPage", model());} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{In .cshtml: \textless{}partial name = "\_viewPage" model = ("codes in here")} \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Web API}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{REST APIs}} \{\{nl\}\}- Stands for {\bf{RE}}presentational {\bf{S}}tate {\bf{T}}ranswer \{\{nl\}\}- Operats on HTTP request/Response Protocol} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{HTTP Status Code}} \{\{nl\}\}- Sucessful Responses: 200, 201 \{\{nl\}\}- Redirection Response: 301 \{\{nl\}\}- Client Error: 400, 401, 403, 404 \{\{nl\}\}- Server Error: 500} \tn 
% Row Count 7 (+ 4)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{API returning object with HTTP Status}} \{\{nl\}\}- IActionResult return type like Web App controller \{\{nl\}\}- Able to be return with HTTP response status:\{\{nl\}\}Ok(200) \{\{nl\}\}NotFound(404\{\{nl\}\}BadRequest(400)\{\{nl\}\}UnAuthorized(401)} \tn 
% Row Count 12 (+ 5)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Media Format Support in WEB API}} \{\{nl\}\}- XML (eXtensible Markup Language) \{\{nl\}\}- JSON(JavaScript Object Notation) \{\{nl\}\}- BSON(Binary JSON)} \tn 
% Row Count 15 (+ 3)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Web API Routing}} \{\{nl\}\}- Routing maps incoming requests to specific controller and action \{\{nl\}\} Example: \{\{nl\}\} In ApiController: ` {[}Route("api/(name of controller)"){]}` \{\{nl\}\}In Browser: \seqsplit{http://localhost/api/controller}} \tn 
% Row Count 20 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{jQuery}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{load()}} - method is used to load data from a server and puts the returned data into the selected element. \{\{nl\}\} Syntax: \{\{nl\}\}\$(selector).load(URL) \{\{nl\}\} \$(selector).load(URL, data, callback)} \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{getJSON()}} - method used to get JSON data using an AJAX HTTP GET request \{\{nl\}\}Syntax: \{\{nl\}\}\$(selector).getJSON(url,data,success(data,status,xhr)\{\{nl\}\}Example: \{\{nl\}\}`\$.getJSON("book.json, function (result)) \{\$("\#aaa").html(result.title);`} \tn 
% Row Count 9 (+ 5)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{append()}} - method to insert specified content at the end of the selected elements. Use {\bf{prepend()}} to insert content at the beginning. \{\{nl\}\}Syntax: \{\{nl\}\}\$(selector).append(content)} \tn 
% Row Count 13 (+ 4)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{each()}} - method to iterate over DOM elements, arrays and objects. \{\{nl\}\}Syntax \{\{nl\}\}\$(selector).each(function(index, value)) \{\{nl\}\}\$.each(collection, function(index, value))} \tn 
% Row Count 17 (+ 4)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{serailize()}} - method to create a URL encoded text string by serializing form values. \{\{nl\}\}Syntax \{\{nl\}\}\$(selector).seralize()} \tn 
% Row Count 20 (+ 3)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{ajax()}} - method which provides core functionality of AJAX \{\{nl\}\}Syntax: \{\{nl\}\}\$.ajax(url)\{\{nl\}\}\$.ajax(url, {[}options{]})} \tn 
% Row Count 23 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Promises in JavaScript}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Represents the eventual completion of an asynchronous operation and its resulting value} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Examples of 3 methods for handling promises: \{\{nl\}\}-done() \{\{nl\}\}-fail() \{\{nl\}\}-always()} \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{JSON}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Data Types}} \{\{nl\}\}- Number \{\{nl\}\}- String \{\{nl\}\}- Boolean \{\{nl\}\}- Object \{\{nl\}\}- Array \{\{nl\}\}- null} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Objects}}\{\{nl\}\}- JSON objects are dictionaries.\{\{nl\}\}- Enclosed with curly brackets \{ \} \{\{nl\}\}- Keys and Values can be any data type} \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Arrays}}\{\{nl\}\}- Arrays are Lists \{\{nl\}\}- Enclosed with square brackets \{ \} \{\{nl\}\}- In between, a list of values separated by commas. \{\{nl\}\}- Each of which ma be of any type.} \tn 
% Row Count 10 (+ 4)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Nesting}} \{\{nl\}\}- Nesting Involves putting arrays and objects inside each other \{\{nl\}\}- Arrays can be put inside objects, objects inside arrays, and so on. \{\{nl\}\}- A JSON file can be one BIG object with lots of objects and arrays inside} \tn 
% Row Count 15 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Promises in JavaScript}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Represents the eventual completion of an asynchronous operation and its resulting value} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Examples of 3 methods for handling promises: \{\{nl\}\}-done() \{\{nl\}\}-fail() \{\{nl\}\}-always()} \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Web API}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{REST APIs}} \{\{nl\}\}- Stands for {\bf{RE}}presentational {\bf{S}}tate {\bf{T}}ranswer \{\{nl\}\}- Operats on HTTP request/Response Protocol} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{HTTP Status Code}} \{\{nl\}\}- Sucessful Responses: 200, 201 \{\{nl\}\}- Redirection Response: 301 \{\{nl\}\}- Client Error: 400, 401, 403, 404 \{\{nl\}\}- Server Error: 500} \tn 
% Row Count 7 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Web API}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{REST APIs}} \{\{nl\}\}- Stands for {\bf{RE}}presentational {\bf{S}}tate {\bf{T}}ranswer \{\{nl\}\}- Operats on HTTP request/Response Protocol} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{HTTP Status Code}} \{\{nl\}\}- Sucessful Responses: 200, 201 \{\{nl\}\}- Redirection Response: 301 \{\{nl\}\}- Client Error: 400, 401, 403, 404 \{\{nl\}\}- Server Error: 500} \tn 
% Row Count 7 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}