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Edit Getting Started with JS and Options API #601

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Edit Getting Started with JS and Options API #601

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Final review of GS w. JS and options API
yordan-mitev Aug 1, 2024
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252 changes: 142 additions & 110 deletions docs/getting-started/javascript-options-api.md
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Expand Up @@ -84,13 +84,10 @@ Components like the Grid need some data that they can display, so, in this step,

Kendo UI for Vue is distributed as multiple NPM packages, scoped to `@progress`. For example, the name of the Grid package is `@progress/kendo-vue-grid`. To use the Grid in your app, add the component and its [dependencies](https://www.telerik.com/kendo-vue-ui/components/grid/#toc-dependencies):

Kendo UI for Vue is a rich suite of many modular components. For our dashboard example, we’ll use three of these components: The Grid, the DropDownList and the Window.

```sh
npm install --save @progress/kendo-vue-grid @progress/kendo-data-query @progress/kendo-licensing @progress/kendo-vue-animation @progress/kendo-vue-data-tools @progress/kendo-vue-dateinputs @progress/kendo-vue-dropdowns @progress/kendo-vue-inputs @progress/kendo-vue-indicators @progress/kendo-vue-intl @progress/kendo-vue-popup
```


## Import the CSS Styles

Kendo UI for Vue includes [four artfully designed themes](slug:themesandstyles) available as separate NPM packages. To style the components, you can use each theme as is or [customize](slug:customizingthemes) it to your liking.
Expand All @@ -104,22 +101,25 @@ Kendo UI for Vue includes [four artfully designed themes](slug:themesandstyles)
1. In the `src/App.vue` file, add a `<script>` block and import the CSS files provided by the installed theme package:

```js
import '@progress/kendo-theme-default/dist/all.css';
<script>
import '@progress/kendo-theme-default/dist/all.css';
</script>
```

You can add any additional custom styles in the `<styles>` tag of the `src/App.vue` file.
To add any custom styles to your app, insert a `<styles>` tag in the `src/App.vue` file and place your styles there.

## Add a Vue Data Grid Component

Now that you've installed all required packages, you are ready to add the Kendo UI for Vue Data Grid to the application:

1. In the `src/App.vue` file, add a `<script>` block and import the Grid and its data:
1. In the `<script>` block of the `src/App.vue` file, import the Grid and its data. In addition, the `process` function from the [Data Query](https://www.telerik.com/kendo-vue-ui/components/dataquery/) package will allow you to use data operations like sorting, paging, and filtering.
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@filipKovachev filipKovachev Aug 2, 2024 •
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I think it is better to say will allow you to apply data operations like sorting, paging, and filtering instead of will allow you to use

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```js
import products from './appdata/products.json';
import { process } from '@progress/kendo-data-query';
import { Grid } from '@progress/kendo-vue-grid';
```
```js
import products from './appdata/products.json';
import { process } from '@progress/kendo-data-query';
import categories from "./appdata/categories.json";
import { Grid } from '@progress/kendo-vue-grid';
```

1. Add a `<template>` block with a simple heading and create a Data Grid. Bind it to the `products` data:

Expand All @@ -144,7 +144,10 @@ Now that you've installed all required packages, you are ready to add the Kendo
}
```

1. In the data options add the following lines:
1. In the `data` options of the Grid:

* Load the data from the `categories` and `products` files.
* Define user friendly column names.

```js
data: function() {
Expand All @@ -156,129 +159,158 @@ Now that you've installed all required packages, you are ready to add the Kendo
{ field: 'UnitPrice', title: 'Price' },
{ field: 'UnitsInStock', title: 'Units in Stock' },
{ field: 'Discontinued' }
]
}
}
],
};
},
```

These steps let you render a very basic Grid by running `npm run dev` and navigating to the local URL displayed in the terminal.


After completing all the steps above, your `App.vue` will look like this:

```js
<script>
import "@progress/kendo-theme-default/dist/all.css";
import products from "./appdata/products.json";
import categories from "./appdata/categories.json";
import { process } from "@progress/kendo-data-query";
import { Grid } from "@progress/kendo-vue-grid";

export default {
name: "App",
components: {
grid: Grid,
},
data: function () {
return {
categories: categories,
products: products,
columns: [
{ field: "ProductName", title: "Product Name" },
{ field: "UnitPrice", title: "Price" },
{ field: "UnitsInStock", title: "Units in Stock" },
{ field: "Discontinued" },
],
};
},
};
</script>

<template>
<h1>Hello Kendo UI for Vue!</h1>
<grid :data-items="products" :columns="columns"></grid>
</template>
```

This sample code lets you run an application with a very basic Grid:

1. Execute the `npm run dev` command.
1. Navigate to the local URL displayed in the terminal.

> Notice the `No valid license found` message and the watermark in the Grid. They are informational and encourage you to activate your trial or commercial license and to [add a license file to your application](slug:my_license_vue). Once you complete these licensing steps, the license message and the watermark will disappear.

## Configure the Vue Data Grid

Now that you have a running Grid, you are ready to use some of its basic features like sorting and paging:

1. In the Grid declaration, add paging, sorting, and a height style that activates scrolling.

```html
<template>
<h1>Hello Kendo UI for Vue!</h1>
<grid
:data-items="products"
:columns="columns"
:pageable="pageable"
:sortable="sortable"
:style="{ height: '400px' }"
></grid>
</template>
```
Now that you have a running Grid, you are ready to use some of its basic features like sorting and paging.

1. Implement the paging and sorting functionality in the `data` option:

- Set the page size (`take`) to 10.
- Set the initial `skip` for the paging.
- Set the initial sorting by Product name.

- Set `sortable` to `true`.
- Set `pageable` to `true`.
- Initialize the `dataResult` empty array.
- Set the page size (`take`) to `10` to define how many items are rendered on each page.
- Set the initial `skip` value, which allows the Grid to calculate how many items to skip when paging.
- Set the initial sorting by product name.
- Initialize the `dataResult` empty array, which returns the results from the sorting and paging.
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the dataResult doesn't really return the results from sorting and paging, it rather holds them.

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```js
<script>
data: function() {
return {
products: products,
categories: categories,
sortable: true,
pageable: true,
skip: 0,
take: 10,
sort: [
{ field: "ProductName", dir: "asc" }
],
columns: [
{ field: 'ProductName', title: 'Product Name' },
{ field: 'UnitPrice', title: 'Price' },
{ field: 'UnitsInStock', title: 'Units in Stock' },
{ field: 'Discontinued', cell: 'discontinuedTemplate' },
],
dataResult: [],
}
}
</script>
<template>
<grid
:data-items="dataResult"
:pageable="pageable"
:sortable="sortable"
:columns="columns"
:skip="skip"
:take="take"
:sort="sort"
></grid>
</template>
data: function() {
return {
categories: categories,
products: products,
sortable: true,
pageable: true,
skip: 0,
take: 10,
sort: [
{ field: "ProductName", dir: "asc" }
],
columns: [
{ field: 'ProductName', title: 'Product Name' },
{ field: 'UnitPrice', title: 'Price' },
{ field: 'UnitsInStock', title: 'Units in Stock' },
{ field: 'Discontinued', cell: 'discontinuedTemplate' },
],
dataResult: [],
};
},
```

1. Set the initial `dataState` in the `created` hook, inside the `methods` option handle the `dataStateChange` event. Implement a `createAppState` helper method that will update the component's state based on the grid's current data state (`skip`, `take`, `sort`):
1. Add the `created` hook. Inside, set the initial `dataState`. This allows the Grid to have the processed data ready for displaying when rendered for the first time.

```js
<script>
created() {
const dataState = {
skip: this.skip,
take: this.take,
sort: this.sort,
}
this.dataResult = process(products, dataState)
},
methods: {
createAppState: function (dataState) {
this.take = dataState.take
this.skip = dataState.skip
this.sort = dataState.sort
},
dataStateChange(event) {
this.createAppState(event.data)
this.dataResult = process(products, {
created() {
const dataState = {
skip: this.skip,
take: this.take,
sort: this.sort,
})
}
this.dataResult = process(products, dataState)
},
}
</script>
<template>
<grid
:data-items="dataResult"
:pageable="pageable"
:sortable="sortable"
:columns="columns"
:skip="skip"
:take="take"
:sort="sort"
@datastatechange="dataStateChange"
></grid>
</template>
```


1. Add the `methods` option. Inside handle the `dataStateChange` event and implement a `createAppState` helper method:

* The `dataStateChange` event is triggered when the user interacts with the Grid and calls the `createAppState` helper method.
* The `createAppState` helper method will update the component's state based on the Grid's current data state (`skip`, `take`, `sort`).
* The `dataResult` is updated with the newly processed data and causes the Grid to re-render and display the data according to the new state.

```js
methods: {
createAppState: function (dataState) {
this.take = dataState.take
this.skip = dataState.skip
this.sort = dataState.sort
},
dataStateChange(event) {
this.createAppState(event.data)
this.dataResult = process(products, {
skip: this.skip,
take: this.take,
sort: this.sort,
})
},
}
```

1. Re-define the Grid declaration to allow paging and sorting:

* Set Grid data to `data-items="dataResult"`&mdash;With paging enabled, the `data` option must contain only the items for the current page.
* Set the `pageable` and `sortable` props.
* Set the `skip`, `take`, and `sort` props that configure paging and sorting.
* Bind the `@datastatechange` event of the Grid to the `dataStateChange` method to handle the user interactions.

```html
<template>
<h1>Hello Kendo UI for Vue!</h1>
<grid
:data-items="dataResult"
:pageable="pageable"
:sortable="sortable"
:columns="columns"
:skip="skip"
:take="take"
:sort="sort"
@datastatechange="dataStateChange"
></grid>
</template>
```

That's it. You now have a Data Grid configured for paging and sorting.

> Historically, all Kendo UI for Vue native components have supported both **Vue 2** and **Vue 3**. However, Kendo UI for Vue versions released after **November 2024** will no longer support Vue 2. For more information, see [Vue 2 End of Life](https://www.telerik.com/kendo-vue-ui/components/vue2-deprecation/).



## Get the Complete Source Code

Your Kendo UI for Vue Getting Started application is complete! You can download and run the complete sample application from the [kendo-vue GitHub repository](https://github.com/telerik/kendo-vue/tree/master/getting-started-javascript-options-api). Alternatively, run, fork and [experiment with the application directly in StackBlitz](https://stackblitz.com/edit/vue3-vite-starter-75eowq?file=src%2FApp.vue).


## Next Steps

* [Activate Your Kendo UI for Vue License](slug:my_license_vue)
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