Скачать или смотреть How to Retrieve Column Data from a DevExtreme DataGrid in JavaScript

Learn how to effectively extract data from a specific column in a `DevExtreme DataGrid` using JavaScript with our step-by-step guide.
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Extracting Data from a DevExtreme DataGrid in JavaScript

In modern web development, handling data grids can often be a significant challenge. If you’re using DevExtreme to create data grids, you might find yourself needing to extract specific pieces of information from those grids. In this guide, we’ll focus on how to retrieve data from a specific column—nSupplierCode—in a DevExtreme DataGrid with JavaScript. Whether you’re working on a .NET project or building a straightforward JavaScript application, this guide will walk you through a simple yet effective solution.

Understanding the Problem

When working with a DevExtreme DataGrid, you may have various columns filled with data. However, sometimes you only need to focus on one specific column. For instance, in our scenario, we want to grab and save the data contained in the nSupplierCode column of a populated grid. The grid is implemented using ASP.NET MVC and includes data concerning suppliers, where each supplier has a unique code.

Your Grid Structure

Here’s a glimpse of what the grid might look like in your code:

[[See Video to Reveal this Text or Code Snippet]]

The nSupplierCode is the second column in our grid, and in this guide, we’ll show you how to extract the values from that column programmatically using JavaScript.

Step-by-Step Solution

To retrieve the desired data, you can use jQuery to access the table structure directly. Below are the steps along with the corresponding code to make it straightforward.

Step 1: Set Up jQuery

Make sure you have jQuery included in your project if it’s not already there. This will enable us to use its powerful selectors to traverse the DOM.

Step 2: Write the JavaScript Function

You’ll create a function that will find the specified column and extract the values. Here’s how you can do that:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code

Selecting the Column: td:nth-child(2) selects the second column in each row. Update the number if your target column changes.

Extracting Text: Using $(td).text() retrieves the text content from each cell within our chosen column.

Storing Values: All values are pushed into an array called data, which can then be utilized as needed.

Step 3: Run Your Code

After implementing the above JavaScript code in your .js file, you can test it within your web application. Open the console to see the extracted nSupplierCode values displayed as an array.

Final Thoughts

Retrieving specific column data from a DevExtreme DataGrid is a straightforward task with the right approach. With the jQuery method shared above, you can easily extract and utilize essential information from your grids, paving the way for further data manipulation or storage as needed.

Feel free to refine the code according to your project requirements, and don’t hesitate to explore more functionalities offered by the DevExtreme library to enhance your data handling capabilities!