Blazor DatePicker Overview

The Blazor Date Picker component allows the user to choose a date from a visual Gregorian Telerik UI for Blazor Calendar or type it into a date input that can accept only dates. You can control the date format of the input, how the user navigates through the calendar, and which dates the user cannot select.

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Creating Blazor Date Picker

  1. Use the TelerikDatePicker tag to add the component to your Razor page.
  2. Bind a DateTime or DateTime? object to the component Value parameter.
  3. (optional) Set the Format, Min, Max, and Width parameters.

Basic Date Picker with custom format, min and max

<p> The DatePicker Value is: @DatePickerValue.ToShortDateString() </p>

<TelerikDatePicker @bind-Value="DatePickerValue"
                   Format="dd MMMM yyyy"

@code {
    private DateTime DatePickerValue { get; set; } = DateTime.Today;

    private DateTime MinDate = DateTime.Today.AddMonths(-1);

    private DateTime MaxDate = DateTime.Today.AddMonths(1);

Date Input Typing Settings

The Blazor DatePicker textbox is a DateInput component, which provides various parameters to configure the keyboard typing experience. The settings are related to:

  • Caret placement;
  • Two-digit year values;
  • Automatic correction of invalid date segments.

See the DateInput keyboard documentation for details and examples. The same DateInput parameters with the same behavior exist for the DatePicker.

Increment Steps

The Date Picker enables the end users to change the selected value by clicking the rendered arrows. You can set the increment and decrement steps through the nested DatePickerSteps tag and its parameters. Read more about the Blazor Date Picker increment steps...


The Blazor Date Picker generates events that you can handle and further customize its behavior. Read more about the Blazor Date Picker events....


You can ensure that the component value is acceptable by using the built-in validation. Read more about input validation....

Header Template

The Blazor DatePicker allows you to customize the rendering of the Calendar popup header. Learn more from the Header Template article.

Adaptive Rendering

The component supports different popup rendering depending on the screen size. Read more about the Adaptive Rendering functionality and how to enable it...

Week Numbers

The Calendar popup can display the ISO week number on each row of date cells. See the ShowWeekNumbers parameter below.

Date Picker Parameters

The Blazor Date Picker provides various parameters that allow you to configure the component:

Attribute Type and Default Value Description
AdaptiveMode AdaptiveMode enum
The adaptive mode of the component.
AutoComplete string
The autocomplete HTML attribute of the input.
BottomView CalendarView enum
Defines the bottommost view in the popup calendar to which the user can navigate to.
DebounceDelay int
Time in milliseconds between the last typed symbol and the value update. Use it to balance between client-side performance and number of database queries.
DisabledDates List<DateTime> A list of dates that cannot be selected.
Enabled bool Specifies whether typing in the input and clicking the button is allowed.
ReadOnly bool If set to true, the component will be readonly and will not allow user input. The component is not readonly by default and allows user input.
Format string
The format of the DatePicker's DateInput. The default value depends on CultureInfo.CurrentCulture. Read more at Supported date formats by the DateInput.
Id string The id attribute on the <input /> element. Use it to attach a <label for=""> to the input.
Max DateTime
(DateTime(2099, 12, 31, 23, 59, 59))
The latest date that the user can select.
Min DateTime
(DateTime(1900, 1, 1, 0, 0, 0))
The earliest date that the user can select.
Placeholder string Maps to the placeholder attribute of the HTML element. The Placeholder will appear if the component is bound to a nullable DateTime object - DateTime?. It will not be rendered if the component is bound to the default value of a non-nullable DateTime object. The Placeholder value will be displayed when the input is not focused. Once the user focuses it to start typing, the Format Placeholder (default or customized one) will override the Placeholder to indicate the format the date should be entered in.
ShowClearButton bool Defines if the user can clear the component value through an x button rendered inside the input.
ShowWeekNumbers bool Sets if the popup Calendar will display week numbers according to the ISO-8601 format. Note that the ISO week number may differ from the conventional .NET week number.
TabIndex int? Maps to the tabindex attribute of the HTML element. You can use it to customize the order in which the inputs in your form focus with the Tab key.
Title string The title text rendered in the header of the popup(action sheet). Applicable only when AdaptiveMode is set to Auto.
ValidateOn ValidationEvent enum
Configures the event that will trigger validation (if validation is enabled). Read more at Validation Modes for Simple Inputs.
Value DateTime or DateTime? The current value of the component. Supports two-way binding.
View CalendarView enum
The current view that will be displayed in the popup calendar.

The Date Picker is, essentially, a DateInput and a Calendar and the properties it exposes are mapped to the corresponding properties of these two components. You can read more about their behavior in the respective components' documentation.

Typing User Experience

The component provides multiple parameters, which control the caret placement, two-digit year values and the auto-correct behavior of the textbox. See the DateInput documentation for details.

Styling and Appearance

The following parameters enable you to customize the appearance of the Blazor DatePicker:

Attribute Type and Default Value Description
Class string The custom CSS class rendered on the wrapping element.
PopupClass string An additional CSS class to customize the appearance of the Date Picker's dropdown.
PopupHeight string Defines the height of the DatePicker's Popup. Defaults to auto.
PopupWidth string Defines the width of the DatePicker's Popup. Defaults to auto.
Width string Defines the width of the DatePicker. Defaults to 280px.

You can find more options for customizing the Date Picker styling in the Appearance article.

Format Placeholder

It is possible to set custom strings as placeholders for each date format segment. This feature is available for the following Telerik UI for Blazor components:

  • DateInput
  • DatePicker
  • DateRangePicker
  • DateTimePicker
  • TimePicker

To set up the FormatPlaceholder, use the <*Component*FormatPlaceholder> nested tag. It allows you to set format placeholders by using the following parameters:

  • Day
  • Month
  • Year
  • Hour
  • Minute
  • Second
  • Weekday
  • DayPeriod

By default, the value for all parameters is null, which applies the full format specifier.

DatePicker Reference and Methods

Add a reference to the component instance to use the Date Picker's methods.

Method Description
Close Closes the Calendar popup.
FocusAsync Focuses the Date Picker textbox. Always await this call, as it relies on JSInterop. Also check the dedicated KB article about programmatic input component focusing, which provides more examples and tips.
NavigateTo Navigates to a specified date and view. The method expects a DateTime and CalendarView arguments.
Open Opens the Calendar popup.
Refresh Re-renders the Calendar popup.

Using Blazor DatePicker methods

<TelerikDatePicker @ref="@DatePickerRef"
                   Width="200px" />

<TelerikButton OnClick="@FocusPicker">Focus DatePicker</TelerikButton>
<TelerikButton OnClick="@OpenPicker">Open DatePicker Calendar</TelerikButton>

@code {
    // the component type depends on the value type
    private TelerikDatePicker<DateTime> DatePickerRef { get; set; }

    private DateTime DatePickerValue { get; set; } = DateTime.Now;

    private async Task FocusPicker()
        await DatePickerRef.FocusAsync();

    private void OpenPicker()

Next Steps

See Also

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