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Kendo UI Cookbook
Kendo UI Cookbook

Kendo UI Cookbook: Over 50 recipes to help you rapidly build rich and dynamic user interfaces for web and mobile platforms.

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Kendo UI Cookbook

Chapter 2. The Kendo UI Grid

In this chapter, we will cover the following recipes:

  • Creating a Grid view and displaying tabular data

  • Displaying data from a local or remote DataSource component in a Grid view

  • Sorting data in a Grid using a selected column

  • Using filters to display data that matches certain criteria in the Grid

  • Creating, updating, and deleting content in the Grid

  • Using the virtualization mechanism to improve the performance of the Grid

  • Customizing the look and feel of the Grid

Introduction


The Kendo UI library comes with a powerful Grid component. A Grid component is very useful when you want to display tabular data and provide various functionalities, such as sorting based on a selected column, filtering data, using pagination, and editing the tabular data. The Kendo UI Grid component provides various configuration options to customize the way the Grid is displayed and also provides various APIs to manipulate the Grid's content.

Creating a Grid view and displaying tabular data


A Grid in Kendo UI can be created in the following two ways:

  • From an existing HTML table element

  • From an existing DIV element

In this recipe, we will take a look at the first approach, that is, creating a Grid using an existing HTML table element.

How to do it…

Creating a Grid using an existing table element is very easy. Let's create a table with five rows using the following code snippet:

<table id="grid">
  <thead>
    <tr>
      <th>Employee ID</th>
      <th>Full Name</th>
      <th>Year of Joining</th>
      <th>Designation</th>
      <th>Extension No.</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>10001</td>
      <td>Sagar H Ganatra</td>
      <td>2008</td>
      <td>Software Architect</td>
      <td>49523</td>
    </tr>
    <tr>
      <td>7008</td&gt...

Displaying data from a local or remote DataSource component in a Grid view


A Grid component can be created using the data present in the page or by referring to model data, that is, data in the JSON format. The Kendo UI library provides a DataSource component that can be used to store a model data. The DataSource component can be bound to a local data source or to a remote service that returns data in either the XML or JSON format.

How to do it…

As mentioned in the previous recipe, we can either use a table element or a div element to construct a Grid:

<div id="grid">
        
</div>

Now, when we initialize the Grid using the kendoGrid function, we need to specify the configuration and data for the table:

$("#grid").kendoGrid({
  columns: [
    {
      field : 'movieName',
      title : 'Movie'
    },
    {
      field : 'year',
      title : 'Year'
    },
    {
      field : 'rating',
      title : 'Rating'
    }
  ],  
  dataSource: [
    {
      movieName : 'The Shawshank Redemption...

Sorting data in a Grid using a selected column


The Kendo UI Grid comes with several features, such as sorting by selected columns, pagination, grouping, and scrolling. These configuration options can be specified at the Grid configuration level and at the column level as well.

How to do it…

To enable the sort by column feature, set the sortable configuration option to true. This will make all the columns in the Grid available for sorting. If you want some of the columns in the Grid to not be available for sorting, then you can add the same property, sortable, with a false value at the column level as well:

$("#grid").kendoGrid({
  columns: [
    {
      field : 'movieName',
      title : 'Movie',
      sortable: false,
    },
    {
      field : 'year',
      title : 'Year' 
    },
    {
      field : 'rating',
      title : 'Rating'
    }
  ],  
  dataSource: {
    transport: {
      read: 'http://localhost/kendo/code/chapter2/remote.json'
    }
  },
  sortable: true
});

Here, by adding sortable...

Using filters to display data that matches certain criteria in the Grid


Similar to sorting columns in a Grid, you can update the Grid content by applying a filter. By applying a filter on the column, users will be able to search relevant data in the Grid that matches some criteria.

How to do it…

To make the columns in the Grid filterable, set the configuration option, filterable, to true, as shown in the following line of code. Similar to the sortable option, all columns in the Grid will be available for filtering by default. If you want some of the columns to not be available for filtering, then set filterable as false under columns.

filterable: true

How it works…

When you mark the columns for filtering, you will see a filter icon for each of the columns in the Grid.

When you click on it, you will be presented with a set of options that will allow you to get filtered data.

By default, users will be presented with two conditions to enter in the search criteria. In this example, the user has selected...

Creating, updating, and deleting in Grid


Editing the records right within the Grid is another common task. The Kendo UI Grid allows users to edit the content in the Grid, which is similar to editing the cells in an Excel sheet. There are two modes, inline and popup, in which a single row in a Grid can be edited. The inline editing turns the cell into a text-input field and provides options to update the record. In the popup editing, a pop up that contains the same fields is shown, and it allows users to save the selected record.

In addition to editing rows in the Grid, the library also allows you to delete and add records to the Grid. These actions—Create, Read, Update, and Delete—are mapped to a remote service that can process these requests. A common paradigm used in web development is to provide a RESTful web service. A RESTful service provides a single endpoint URL and provides resources that get invoked based on the http method mentioned in the request.

How to do it…

To enable editing...

Using the virtualization mechanism to improve the performance of the Grid


Consider a scenario wherein the service returns a large dataset that needs to be displayed in the Grid. For example, say the dataset has about 10,000 records. As explained earlier, a table row is created for each record in the DataSource object. In this case, there are 10,000 records, and creating a table row (tr) for each record would make the browser run out of memory. Creating 10,000 DOM nodes and then appending the same into the document tree would consume a lot of memory. One way to tackle this problem is to use virtualization. In virtualization, only a fixed set of nodes are created and when the user scrolls over the Grid, the existing nodes are updated to show the next set of records in DataSource. This way, we not only optimize the use of the browser memory by reusing the DOM node, but we also provide a smooth experience to the user while scrolling through a massive list.

How to do it…

The first step to virtualization...

Customizing the look and feel of the Grid


In this recipe, we will look at how we can customize the look and feel of the rows by using a template. We will also look at the reordering and resizing of columns in the Grid.

How to do it…

Each record in the DataSource object will be represented by a table row (the tr element) in the Grid. These rows can be customized by providing a template to the rowTemplate and altRowTemplate attributes. The rowTemplate and altRowTemplate attributes are used to style the rows in the Grid. Let's first define these templates. The following code snippet is the template for rowTemplate:

<script id="gridRowTemplate" type="text/x-kendo-tmpl">
  <tr>
    <td class="details">
      <span class="movieName"><h3>#: movieName #</h3></span>
      <span class="rating">Rating : #: rating#</span>
    </td>
    <td class="year">
      <h3>#: year #</h3>
    </td>
  </tr>
</script>

The...

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Description

This book is an easy-to-follow guide full of hands-on examples that allows you to learn and build visually compelling web applications using the Kendo UI library. This book will do wonders for web developers having knowledge of HTML and Javascript and want to polish their skills in building applications using the Kendo UI library.

What you will learn

  • Get to grips with the basics of the Kendo UI application framework
  • Use various widgets such as Grid, TreeView, Editor, PanelBar, Modal Window, and File uploader, and customize your application to meet the business requirements
  • Build web applications for the mobile platform and provide a native look and feel on iOS, Android, BlackBerry, and Windows Phone 8
  • Utilize the data visualization components such as charts and dashboard widgets to build visually compelling and interactive applications

Product Details

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Publication date, Length, Edition, Language, ISBN-13
Publication date : Jun 25, 2014
Length: 250 pages
Edition : 1st
Language : English
ISBN-13 : 9781783980000
Vendor :
Telerik
Languages :
Tools :

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Product Details

Publication date : Jun 25, 2014
Length: 250 pages
Edition : 1st
Language : English
ISBN-13 : 9781783980000
Vendor :
Telerik
Languages :
Tools :

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Table of Contents

11 Chapters
The Kendo UI Application Framework Chevron down icon Chevron up icon
The Kendo UI Grid Chevron down icon Chevron up icon
Kendo UI TreeView Chevron down icon Chevron up icon
Kendo UI Editor Chevron down icon Chevron up icon
Kendo UI PanelBar Chevron down icon Chevron up icon
Kendo UI File Uploader Chevron down icon Chevron up icon
Kendo UI Window Chevron down icon Chevron up icon
Kendo UI Mobile Framework Chevron down icon Chevron up icon
Kendo UI Mobile Widgets Chevron down icon Chevron up icon
Kendo UI DataViz Chevron down icon Chevron up icon
Kendo UI DataViz – Advance Charting Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Half star icon Empty star icon Empty star icon 2.8
(4 Ratings)
5 star 0%
4 star 50%
3 star 0%
2 star 25%
1 star 25%
Tushar Kanti Bala Feb 23, 2018
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
Nice book. Every C# web developer should read it.
Amazon Verified review Amazon
KennyG Sep 10, 2014
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
I've been using Telerik's ASP.NET AJAX controls for a few years so I was interested in learning about the Kendo UI tools. For anyone unfamiliar with it, Kendo UI is Telerik's HTML5/Javascript framework. A subset of these recently went open source.This book will quickly get you started with a mix of the controls. It starts by explaining the Kendo UIframework which includes templating and then starts working through a selection of the controls from the Grid up toWindow. The book then goes into the Mobile Framework and Widgets before wrapping up with the DataViz visualization components.This cookbook breaks each topic/recipe up into three sections: "How to do it..." which gives you the basic format/structure, "How it works..." which explains the output, and "There's more..." which goes a little deeper into different options and scenarios.I would recommend this book to anyone just getting started with Kendo UI. This book is a good introduction to the toolkit and makes for a good reference to keep on hand. For the experienced Kendo user this book may not go deep enough for you. For a deeper dive you may need to consult the online documentation. I would have liked to have seen some discussion of the scheduling controls as well as more in depth information about the framework and DataSources.http://www.packtpub.com/kendo-ui-cookbook/book
Amazon Verified review Amazon
GERMAN RANCO GALAN Apr 10, 2017
Full star icon Full star icon Empty star icon Empty star icon Empty star icon 2
It does not address many different topics than you can find in the examples and documentation of the official Kendo website.
Amazon Verified review Amazon
Keith Feb 26, 2015
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
Very basic... use goggle instead
Amazon Verified review Amazon
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