How to Change Background Color of AgGrid Table Dynamically?

Are you tired of the same old background color of your AgGrid table? Do you want to give your users a personalized experience by changing the background color dynamically? Look no further! In this article, we’ll take you through a step-by-step guide on how to change the background color of an AgGrid table dynamically.

What is AgGrid?

Before we dive into the tutorial, let’s quickly introduce AgGrid. AgGrid is a powerful and feature-rich JavaScript data grid that provides a flexible and customizable way to display and manipulate large datasets. It’s widely used in various industries, including finance, healthcare, and e-commerce, due to its ability to handle massive amounts of data with ease.

The Problem: Static Background Color

By default, AgGrid tables come with a standard white background color. While this may be acceptable for some use cases, it can become monotonous and boring for users who interact with the grid frequently. Moreover, in some scenarios, you may want to change the background color based on specific conditions or user preferences.

The Solution: Dynamic Background Color

The good news is that AgGrid provides a way to change the background color dynamically using its powerful API and customization options. In this article, we’ll explore two methods to achieve this:

• Using AgGrid’s built-in cellClassRules feature
• Using a custom cell renderer function

Method 1: Using cellClassRules

Step 1: Define the cellClassRules

In this method, we’ll use AgGrid’s built-in cellClassRules feature to change the background color of the table cells dynamically. First, define an array of objects that specify the rules for applying CSS classes to the cells.

const cellClassRules = [
  {
    condition: params => params.data.category === 'A',
    css: 'bg-A'
  },
  {
    condition: params => params.data.category === 'B',
    css: 'bg-B'
  },
  {
    condition: params => params.data.category === 'C',
    css: 'bg-C'
  }
];

In this example, we’re defining three rules that apply different CSS classes (bg-A, bg-B, and bg-C) based on the value of the ‘category’ column.

Step 2: Apply the cellClassRules to the Column Definitions

Next, apply the cellClassRules to the column definitions using the cellClass property.

const columnDefs = [
  {
    field: 'category',
    cellClass: cellClassRules
  },
  {
    field: 'name',
    cellClass: cellClassRules
  },
  {
    field: 'price',
    cellClass: cellClassRules
  }
];

In this example, we’re applying the cellClassRules to all three columns (category, name, and price).

Step 3: Define the CSS Classes

Finally, define the CSS classes that will be applied to the cells based on the rules.

/* CSS classes for background colors */
.bg-A {
  background-color: #FFC107;
}
.bg-B {
  background-color: #8BC34A;
}
.bg-C {
  background-color: #03A9F4;
}

In this example, we’re defining three CSS classes (bg-A, bg-B, and bg-C) with different background colors.

Method 2: Using a Custom Cell Renderer Function

Step 1: Define the Cell Renderer Function

In this method, we’ll use a custom cell renderer function to change the background color of the table cells dynamically. First, define a function that takes the cell params as an argument.

function cellRenderer(params) {
  const category = params.data.category;
  let backgroundColor;

  switch (category) {
    case 'A':
      backgroundColor = '#FFC107';
      break;
    case 'B':
      backgroundColor = '#8BC34A';
      break;
    case 'C':
      backgroundColor = '#03A9F4';
      break;
    default:
      backgroundColor = '#FFFFFF';
  }

  return `${params.value}`;
}

In this example, we’re defining a cell renderer function that takes the cell params as an argument and switches the background color based on the value of the ‘category’ column.

Step 2: Apply the Cell Renderer Function to the Column Definitions

Next, apply the cell renderer function to the column definitions using the cellRenderer property.

const columnDefs = [
  {
    field: 'category',
    cellRenderer: cellRenderer
  },
  {
    field: 'name',
    cellRenderer: cellRenderer
  },
  {
    field: 'price',
    cellRenderer: cellRenderer
  }
];

In this example, we’re applying the cell renderer function to all three columns (category, name, and price).

Comparison of Both Methods

Both methods have their advantages and disadvantages. The cellClassRules method is more straightforward and easy to implement, but it may not provide the same level of flexibility as the custom cell renderer function. On the other hand, the custom cell renderer function provides more control over the rendering process, but it can be more complex and error-prone.

Method	Advantages	Disadvantages
cellClassRules	Easier to implement Faster rendering	Less flexible Limited control over rendering
Custom Cell Renderer Function	More flexible Greater control over rendering	More complex to implement Slower rendering

Conclusion

In this article, we’ve explored two methods to change the background color of an AgGrid table dynamically using AgGrid’s built-in cellClassRules feature and a custom cell renderer function. By following the steps outlined in this tutorial, you can give your users a more personalized experience and make your AgGrid table more engaging and interactive.

Remember to choose the method that best suits your use case and requirements. If you need more flexibility and control over the rendering process, the custom cell renderer function may be the better option. However, if you need a quick and easy solution, the cellClassRules method is the way to go.

Happy coding!

Frequently Asked Question

Are you tired of stucking with the same old background color of your AgGrid table? Want to spice things up and change it dynamically? Well, you’re in luck because we’ve got the answers to your burning questions!