Dynamically adjust the height and width of a React Dialog component

When developing applications with React, you might encounter scenarios where you need to adjust the size of a dialog component dynamically based on user interaction or other conditions. This article will guide you through the process of changing the height and width of a dialog component dynamically in React.

Adjusting Dialog Size Dynamically

To dynamically change the size of a dialog component, you can utilize the width and height properties of Dialog along with the useState hook to manage the width and height states. Update these properties based on user input or other events.

Here’s an example of how you can implement this functionality:

import React, { useRef, useState } from 'react';
import { DialogComponent } from '@syncfusion/ej2-react-popups';
import { NumericTextBoxComponent } from '@syncfusion/ej2-react-inputs';

const Modal = () => {
  let dialogInstance = useRef(null);
  const [dialogWidth, setDialogWidth] = useState('50%'); // State for dialog width
  const [dialogHeight, setDialogHeight] = useState('30%'); // State for dialog height

  // Function to handle width change
  const handleWidthChange = (e) => {
    const newWidth = `${e.value}%`;
    setDialogWidth(newWidth);
  };

  // Function to handle height change
  const handleHeightChange = (e) => {
    const newHeight = `${e.value}%`;
    setDialogHeight(newHeight);
  };

  return (
    <div className="control-pane">
      <DialogComponent
        id="modalDialog"
        header="Dynamically change the Dialog popup’s Height & Width"
        ref={dialogInstance}
        visible={true}
        width={dialogWidth} // Set dynamic width
        height={dialogHeight} // Set dynamic height
      >
        <div id="SliderDiv">
          <h4>Change Dialog Width</h4>
          <NumericTextBoxComponent
            min={40}
            max={80}
            step={1}
            value={50}
            change={handleWidthChange}
          />

          <br />
          <h4>Change Dialog Height</h4>
          <NumericTextBoxComponent
            min={30}
            max={50}
            step={1}
            value={30}
            change={handleHeightChange}
          />
        </div>
      </DialogComponent>
    </div>
  );
};

export default Modal;

In the above example, NumericTextBoxComponent is used to capture user input for the dialog’s width and height. The handleWidthChange and handleHeightChange functions update the state, which in turn updates the width and height properties of the DialogComponent.

For a live demonstration of the dynamic resizing of the dialog component, you can refer to the following sample:

• React Dialog Size Adjustment Example

By following the steps outlined in this article, you can effectively manage the size of dialog components in your React applications, providing a flexible and responsive user experience.