如何将Kendo DatePicker占位符配置为dd/mm/yyyy格式？

Hey there! I see you've set the format for your Kendo DatePicker to dd/mm/yyyy HH:mm:ss, but the placeholder still shows the default day/month/year—let's get that sorted out quickly.

The Issue #

The [format] property controls how selected dates are displayed and how user input is parsed, but it doesn't automatically update the placeholder text. By default, the placeholder uses a localized generic prompt (like day/month/year) instead of mirroring your custom format string.

Solution 1: Explicitly Set the Placeholder #

The simplest fix is to directly define the placeholder attribute with your desired format:

<div class="col-xs-12 col-sm-6 example-col">
  <p>Select a long date:</p>
  <kendo-datepicker
    [format]="'dd/mm/yyyy HH:mm:ss'"
    [value]="value"
    placeholder="dd/mm/yyyy"
  >
  </kendo-datepicker>
</div>

This will immediately replace the default placeholder with dd/mm/yyyy while keeping your custom date-time format for selected values.

Solution 2: Dynamically Bind Placeholder to Format #

If you want the placeholder to automatically sync with your format (in case you change it later), you can extract the date portion of your format string in your component and bind it to the placeholder:

Component Code:

import { Component } from '@angular/core';

@Component({
  selector: 'your-component-selector',
  templateUrl: './your-component.component.html',
})
export class YourComponent {
  public value: Date | null = null;
  public dateTimeFormat = 'dd/mm/yyyy HH:mm:ss';

  // Extract the date part from the full format string
  get datePlaceholder() {
    return this.dateTimeFormat.split(' ')[0];
  }
}

Template Code:

<div class="col-xs-12 col-sm-6 example-col">
  <p>Select a long date:</p>
  <kendo-datepicker
    [format]="dateTimeFormat"
    [value]="value"
    [placeholder]="datePlaceholder"
  >
  </kendo-datepicker>
</div>

This way, if you ever update your dateTimeFormat, the placeholder will adjust automatically without you having to change it manually.

内容的提问来源于stack exchange，提问作者Alex Sim