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Prevent the focus on the first element in React Dialog component

18 May 2022 / 1 minute to read

By default, the dialog focuses on the first elements of the content area which can be active and focusable. You can prevent this default focusing behavior using the open event and by enabling the preventFocus argument.

Bind the open event and enable the preventFocus argument within an event like the below sample.

Source
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App.jsx
App.tsx
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import { DialogComponent } from '@syncfusion/ej2-react-popups';
import * as React from "react";
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.buttons = [{
                buttonModel: {
                    content: 'Ok',
                    isPrimary: true,
                },
                'click': () => {
                    this.dialogInstance.hide();
                }
            }, {
                buttonModel: {
                    content: 'Cancel'
                },
                'click': () => {
                    this.dialogInstance.hide();
                }
            }];
    }
    dialogContent() {
        return (<div class='form-group'><label for='email'>Email:</label>
            <input type='email' class='form-control' id='email'>
        </div>
        <div class='form-group'>
            <label for='comment'>Password:</label>
            <input type='password' class='form-control' id='password'>
        </div>
    )
  }
  
  public onOpen = (args: any): void =>{args.preventFocus = true}
  }
  
  public render() {} (
    <div className="App" id='container'>  
        <DialogComponent id="dlg-focus" width='300px' isModal={true} target='#container' header='Sign In' open={this.onOpen} buttons={this.buttons} ref={dialog => this.dialogInstance = dialog}>
         <div>{this.dialogContent()}</div>
         </DialogComponent>
    </div>);
  }
}
export default App;



</></>);
    }
}
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import { DialogComponent } from '@syncfusion/ej2-react-popups';
import * as React from "react";

class App extends React.Component<{}, {}> {
  public dialogInstance: DialogComponent;
  public buttons: any = [{
    buttonModel: {
        content: 'Ok',
        isPrimary: true,
    },
    'click': () => {
        this.dialogInstance.hide();
    }
  }, {
    buttonModel: {
        content: 'Cancel'
    },
    'click': () => {
        this.dialogInstance.hide();
    }
  }];

  public dialogContent(): JSX.Element {
    return (
        <div class='form-group'><label for='email'>Email:</label>
            <input type='email' class='form-control' id='email'>
        </div>
        <div class='form-group'>
            <label for='comment'>Password:</label>
            <input type='password' class='form-control' id='password'>
        </div>
    )
  }
  
  public onOpen = (args: any): void =>{
      args.preventFocus = true;
  }
  
  public render() {
    return (
    <div className="App" id='container'>  
        <DialogComponent id="dlg-focus" width='300px' isModal={true} target='#container' header='Sign In' open={this.onOpen} buttons={this.buttons} ref={dialog => this.dialogInstance = dialog!}>
         <div>{this.dialogContent()}</div>
         </DialogComponent>
    </div>);
  }
}
export default App;
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