By default, on focusing the MaskedTextBox the entire mask gets selected. You can customize by using any one of the following methods:
The selectionStart and selectionEnd set to 0 instead of the input element value’s length, when we focus on a MaskedTextBox control filled with all mask characters. This is the default behavior of the HTML 5 input element.
Following is an example that demonstrates the above cases to set cursor position in the MaskedTextBox using focus event.
import { MaskedTextBoxComponent, MaskFocusEventArgs } from '@syncfusion/ej2-react-inputs';
import * as React from "react";
import * as ReactDOM from "react-dom";
export default class App extends React.Component<{}, {}> {
constructor(props: any) {
super(props);
this.onfocus = this.onfocus.bind(this);
this.onfocus1 = this.onfocus1.bind(this);
this.onfocus2 = this.onfocus2.bind(this);
}
public onfocus(args: MaskFocusEventArgs) {
// sets cursor position at start of MaskedTextBox
args.selectionEnd= args.selectionStart = 0;
}
public onfocus1(args: MaskFocusEventArgs) {
// sets cursor position at end of MaskedTextBox
args.selectionStart=args.selectionEnd = args.maskedValue.length;
}
public onfocus2(args: MaskFocusEventArgs) {
// sets cursor at specified position
args.selectionStart = 3;
args.selectionEnd = 3;
}
public render() {
return (
<div>
<br/><MaskedTextBoxComponent name="mask_value1" placeholder="Default cursor position" mask= "00000-00000" value="93828-32132" floatLabelType='Always'/>
<MaskedTextBoxComponent name="mask_value2" placeholder="Cursor positioned at start" mask= "00000-00000" value="83929-4342" floatLabelType='Always' focus={this.onfocus}/>
<MaskedTextBoxComponent name="mask_value3" placeholder="Cursor positioned at end" mask= "00000-00000" value="83929-3213" floatLabelType='Always' focus={this.onfocus1}/>
<MaskedTextBoxComponent name="mask_value4" placeholder="Cursor at specified position" mask= "+1 000-000-0000" value="234-432-432" floatLabelType='Always' focus={this.onfocus2}/>
</div>
);
}
};
ReactDOM.render(<App />, document.getElementById('masktextbox'));