Angular Material Table Dynamic Columns|Dynamic-columns-mat-table. We now have a functioning dynamically updated view and MatTable. Dynamically table columns and rows [Angular 6 + Bootstrap 3 , If items in the array are uniform then you can iterate over the keys. I did this because there are several object properties that the user doesn’t need to see and they just clutter the table. Datatable with fully dynamic columns in angularJS. The definition in the Angular Material documentation is the next: “ Data source that accepts a client-side data array and includes native support of filtering, sorting (using MatSort), and pagination (using MatPaginator).”. So maybe, the most important part will be in the definition of the array for the table, this will be done with [dataSource]=”dsTrainers”. This is equals to “dcTrainers”, which we need to define in our .ts file as a string[] with the names of the columns: In the th as usual, we enter our Title for each column, and in the td we will use an iteration of the for loop that will go over the entire array of our table using the “let trainer”. So basically our HTML template will be like this: This may look tricky, but it is quite simple once we understand the main concepts. ***Note: The table will also fill correctly when the columns are generated before the dataSource, but to do that two events (in this case two button clicks) were needed, which makes for poor UX in my opinion. The ngx-datatable is a handy package used to create a lightweight interactive data-table with powerful user-centric features to display data in tabular form. this.selectedTrainer.pokemons.push(this.pokemonToAdd); this.selectedTrainer.badges.push(this.badgeToAdd); this.trainers[index] = this.selectedTrainer; findIndex(t => t.name === this.selectedTrainer.name); this.selectedTrainer = JSON.parse(JSON.stringify(trainer)); https://material.angular.io/components/table/overview. September 22, 2018. Based on the user’s first selection, the view is updated with another ngbDropdown menu that presents the correct list of objects. I hope this was helpful and sparks ideas of your own. Dynamic-Columns-Mat-Table. We control the first panel to be collapsed and the second to be expanded, also there are two more Data Sources variables: the dsPokemons and the dsBadges. Each of us as trainers had a list of pokemon that we were trapping and also a list of badges we got. We’ll use a columnsDefinitions object to store which column definitions are hidden:. Ionic 5 Angular Datatables tutorial; In this tutorial, you will learn how to create a dynamic data table in the Ionic Angular app using the npm ngx-datatable package. If the user wants to see different data, they can either select a different source/type, which will update the view accordingly based on our setViewTrue() method from earlier, or hit “clear” for a fresh start. Test Angular DataTable App. Let’s highlight the important words in the code above. So we first need to see the list of trainers, then select them and check in other lists which pokemons and bages they have. The ng2-smart-table is a library that is available to us as an npm package and pre-defined components and directives for sorting, searching, filtering and displaying data in the form of a table. Marco. pokemonToAdd: Variable that we use to push new pokemons of the select option to our array ok pokemons. The creation of columns and the generation of the dataSource depend at this point on the user clicking a “Generate” button so that the event triggers onChangeDetection and updates the view with the filled table. . What was needed was for the columns and the dataSource to be generated at the same time. I don’t want to go deep in this concept because I’m sure there are other articles that will explain it better, I let you one here and please give it a check if you don’t know this concept yet: http://www.syntaxsuccess.com/viewarticle/javascript-variable-assignment-explained. Let’s create the templates for the second panel: We add two more tables for the badges and for the pokemons, also we are using the component ‘Tabs’ for material to separate both tables. We bind the matColumnDef to the current column (which is an object property), tell it to display the current column as a header, and to display the value of that property for the current object that’s been passed from the dataSource. Now, Its time to test datatables built with Angular Material UI library. Don’t forget to define this new variables: So now, when a user click in the edit, the first panel will collapse and some variables will fill with data of the selected trainer. Tables with dynamic data using Angular and Material. We use a variable that is defined as a type PokemonTrainer class, we will use this variable to save the temporary changes that we will made for each element in our array of trainers. . We need to import also this module in the app.module.ts: So, let’s check some of the new variables and new functions that we add for this purpose: pokemons: Array of Pokemon that we use in our select option. We will use also the “Expansion Panel” in our html template, so when a user edit one trainer the panel of trainer collapse and the panel for editing get expanded. Both should be declared as boolean in out .ts file, and we’ll init with the value for f_firstPanel in true. Angular 11 Datatable. Add Angular Material And Ng2-Charts To Your Project. Well yes, but here comes one of the concepts that is such a headache when start to learn programming: the variable assignment. The finish button will first find the index of the array were is the selectedTariner, aftter this it will update the information of this trainer and the table. The columns are defined by the keys of the first object in the rows array, which was modified after we subscribed to it. From the last pic, we see that on the click event we now fire a method (defineDataService())that will set the correct service we need and then will call the fetchData() method, like so: In fetchData(), we are subscribing to the given service, taking that data and making sure it isn’t null or empty, and if it isn’t null then we are taking each object from the data array and passing it through the removeProps() method. But you can use Angular Renderer2 class to create dynamic elements. { name: 'Martin Naveda', age: 14, badges: [], pokemons: [] }. This meant that an empty table would present to the user, then when “Generate” was hit the column headers would appear, but no data would fill the table. Again we update the view with some more options, at the moment limited to only a few types of data that can be fetched based on object type. Ok, so now that we know how our template should look the question becomes how do we create the rows, columns, and dataSource dynamically at runtime. It has dynamic columns and accessible DOM structure. This article aims to explain one of the best components of Angular Material. Angular Material data tables are used to display data in tabular format on pages. So you see that we define a table as usual in html with the th,td and tr . Same happens when we equals the trainer that came for the Data Source to the selectedTrainer varible, so each time we change one of them the data in the same location of memory change and get reflected in all the variables. Bug, feature request, or proposal: Proposal What is the expected behavior? In the following link we can review the documentation of Angular Material for this component:https://material.angular.io/components/table/overview, For a better explanation of this case, we will also use another Material component in the simplest way, This will be the “Expansion Panel” . How to create an Angular Material Table from dynamic input with a view that seamlessly updates. That’s why we equals the .data attribute to the .pokemons and .badges of the trainer. Check this part of our code: We basically equal the selectedTrainer to the trainer that comes from our dsTrainers.data that is also equals to the trainers array. There is a simplest way to do this by clonning the Object, this article give some ways to do that: We are going to see more of the Angular Material table in another story, thanks for reading this :) ! The total width of our header columns expands beyond the viewport size. So far it’s straightforward and standard. We use AngularJS on a lot of our web projects, and since early last year we’ve been using Angular Material, the AngularJS implementation of Google’s Material Design. A simple mokup will like this: Then let’s define the Trainer class, with the basic attributes and a list of pokemon and badges: Also we want to import the MatTableModule module in our app.module.ts: To see the mat-table component in action we need to define first an array of Pokemon Trainer. { kdex: 79, name: 'Slowpoke', type: 'Water' }. So going back to our code, when we create the Object of the trainers array and we equal to the dsTrainers.data we made that they point to same location in memmory. Now, we need to create our array of PokmenoTrainer and also use an Object of MatTableDataSource to fill our table. material-dynamic-table. const list_items = [{name:'abc',code:'123'},{name:'def',code:'456'}]; let keys Dynamically table columns and rows [Angular 6 + Bootstrap 3] Ask Question Asked 1 year, 7 months ago. We’re also setting the *matHeaderRowDef to the non-predefined columns. { name: 'Andy Vicente', age: 14, badges: [], pokemons: [] }. . ***Learning Point: I had this a little out of sync for a while in that I was creating the dataSource as I generated the rows but before the columns were generated. Angular Material provides an awesome fully-featured data-table component that can be easily implemented in an Angular application. Surge', description: 'It is in the shape of an eight-pointed gold star with an orange octagon in the center' }. In this tutorial, we are going to learn how to integrate and use ng2-smart-tables with Angular 6. In this last point, I am going to show you how to filter your mat-table. First, let’s look at how we’re going to define the MatTable in the template through a quick compare and contrast. It offers sorting, pagination, filtering per column and the ability to specify content types and components used for displaying them. this.dsPokemons.data = this.selectedTrainer.pokemons; this.dsBadges.data = this.selectedTrainer.badges; dcPokemons: string[] = ['kdex', 'name', 'type']; dcBadges: string[] = ['name', 'giver', 'description']; this.dsPokemons = new MatTableDataSource(); this.dsBadges = new MatTableDataSource(); , , ,