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React js book pdf

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In the previous post, I showed you "Hello World" example using Reactjs in MVC. Today he will show you, how to view the tabular data from a database ? ? (data list) using React.js, MVC and Entity framework. The recovery data from the database and the display in tabular format is a very common task in web development. Before this article, I explained how to recover data from the database in AngularJs? ? and how to recover and view database data using JQuery in MVC. Today we will see, how to view the tabular data from the database in Reactjs. Here in this article, we have not implemented paging, sorting and filtering to make the application simple and understandable. In the next part of this series, we will see paging, sorting and filtering using Reactjs, MVC and Entity Framework. Here we will take a list of employee data (JSON DATE) from a database via AJAX and then we will create a REACT component for displaying the list of employee data in the tabular format. Go to File> New> Project> ?, Web Application (Under Web)> Input Application Name> Click OK> Select Empty Model> MVC Controlled (in "Add Main Folders and References for" Option) > OK Go to Solution Explorer> Right-click on the app_date folder> Add> New item> Select the SQL Server database on Date> Enter the database name> Add. Open Database> Right-click on the table> Add New Table> Add columns> Save> Insert the table name> OK. In this example, I used a table as under the Table? ? Employees Go to Solution Explorer> Right-click the Form Solution Explorer project name> Add> New item> Select entity data model in Data> Enter the model name> Add. You will see a popup window (Entity Data Model Wizard)> Select Generate from the database> Next> Choose the data connection> Select the database> Next> Select tables> Enter the namespace of the model> Finish. Go to Solution Explorer> Right-click Folder Form Solution Explorer> Add> Controller> Enter the controller name> Select Templete "Vacuum Controller MVC"> Add. Here I created a controller called "homecontroller" here I added the action of "index" in the "home" controller. Please write this following Public ActionResult Index Index code () {yield view (); } Right-click on the action method (here right-click on the index action)> Add View ...> Enter the display name> Select View engine (razor)> Add. HTML code @ {viewbag.title = "index"; } View Tabular data from the database using REACT JS @ * HTML * @ @ * bootstrap css * @ @ * jQuery * @ @ * REACT library * @ @ * REACTJS Components * @ @ * Here we create 2 REACT 1 components for lines and another for table * @ Var dependentGridRow = REACT.creacteclass ({rendering: function () {return ( {this.props.item.firstname} {this.props.Item.LastName} {THIS. props.item.emailid} {this.props.item.city} {this.props.it em.country} TR>); }}) ;; Var addictegridtable = react.creacteclass ({getinitialstate: function () {return {items: []}}, componentdidmount: function () {@ * fetch date via ajax * @ $ ..get (this.props.dataurl, function ( data) {if.ismunted ()) {this.setstate ({items: data});}} .bind (this));}, rendering: function () {var lines = []; this.State. It .Fodeach (function (element) {rsWs.push ();}); return ( name surname email id city th> {lines} ); }}) ;; REACTDOM.RENDER (, document.getelementbyid ('griddata')); Here I created two react components called "DependigridTable" and "EmployeeGridRow". Here I used the "Getemployed" action for data recovery. Write this Public Next Code JsonResult Getemployetionata () {Using (MyDatabaseCenties DC = New MyDatabaseenties ()) {VAR Date = DC.Employeeees.Orderby (A => a.FirstName) .tolist (); Return to New JsonResult {Date = Date, JsonRequestBehavior = jsonRequestBehavior.Allowget}; }} Who doesn't know what pictures are? ?, imagine reading a book without page numbers? It would not be strange if there was no paging concept. So if your friend asks you how many pages you're done, what will you answer? Or, let's take a worse case yet; Suppose that somehow there is an accident that happened, and you have lost some pages from your book, and the book had really important information. Now, you have no idea which pages or what information you missed! This is really scary, isn't it? Returning through history, can you believe that there was a moment when books and documents used to be published without page numbers? Only after 1500 c, it has become a common practice to publish books with page numbers. If only a little genius would understand that before. Likewise, there is a concept of paging in the digital world in which we divide a document into discrete pages / electronic pages. These electronic pages are made to a web browser and are called Web pages. Furthermore, these pages and content in these pages, which should be rendered are related to each other using the React.js page. Ways to make progressive data loading for data rendering, we also have a progressive loading option instead of REACT.JS PAGEATION. An example of successful progressive load is the Facebook or Instagram newsfeed in which we have an infinite sliding option while the news feed continues to update and makes. Or, a better way to say that it is that it exposes many information that can deliver to an end user. ?, ?, REACT.JS PAGEATIONBUT, paying has its own importance in terms of filtering and showing only relevant data. For example, the Google search engine. Thus, React.js page becomes crucial when a user is looking for special information and not consuming any random information. There is a huge number of integrated libraries available to manage paging in web development, especially in the event of reacting. Furthermore, there are a huge number of available resources that you can use directly to manage paging for your application. Some of the NPMs and other paging libraries available are: React-JS-page React-React-Bootstrap / Pagation is also ideal for using these existing libraries instead of re-write of yours, the same as it is not there need to reinvent the wheel. Instead, you can concentrate on other things. But at the same time, it is also very important to know what is happening behind the scenes so you can build and customize your question according to need without compromising any requirements. There is also a chance of different logics used for different Reactjs pagination packages available. For the implementation of REACT-PAGES in your application, read this great article. Here, he will explain the React-Page ? with the help of the code below and some calculations. We examine some examples to understand the code above. ?, takes on the current page = 1, page size = 10, total article = 160; Then total rendering pages = Math.ceil (160/10) = 16; Because the current page = 1, and must A total of 10 pages, then according to the first condition, which is the current page = total without pages (16) meets Which implies ?, Top of page = 16-9 = 7 Final page = 16. Take the current page = 7, page size = 10, Total article = 160; Then total pages to be made = Math.ceil (160/10) = 16; Now the current page = 7, and has to make the total of 10 pages yet, then based on the third condition, this is the current page +4 = (7 + 4 = 11)

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