Show Microseconds in RadTimeSpanPicker

Updated on Oct 16, 2026

Environment

Version	Product	Author
2026.3.1007	RadTimeSpanPicker	Desislava Yordanova

Description

Display a TimeSpan with six fractional-second digits and select microseconds in the RadTimeSpanPicker dropdown. The built-in components support units through milliseconds, so microsecond selection requires a custom component.

Solution

Set EditMode to DropDownOnly and use six f specifiers in StringFormat to display microseconds. For selection, create a component that converts each microsecond to 10 TimeSpan ticks.

1. Define a custom component. Derive it from StepTimeSpanComponentBase and override GetTicksFromItem and CreateInstanceCore.

Define the Microsecond Component

C#

using System;
using System.Windows;
using Telerik.Windows.Controls;

namespace MicrosecondExample
{
    public sealed class MicrosecondTimeSpanComponent : StepTimeSpanComponentBase
    {
        private const long TicksPerMicrosecond = 10;

        public override long GetTicksFromItem(object item)
        {
            return Convert.ToInt64(item) * TicksPerMicrosecond;
        }

        protected override Freezable CreateInstanceCore()
        {
            return new MicrosecondTimeSpanComponent();
        }
    }
}

The base class populates the selectable items from Minimum, Maximum, and Step. The custom component maps these items directly to ticks without converting through milliseconds.

2. Add the component alongside the built-in hour, minute, second, and millisecond components. Use a range of 0 through 999 for both fractional components: milliseconds represent the first three fractional digits, and microseconds represent the remaining three.

Configure the Dropdown and Six-Digit Display

XAML

<Window x:Class="MicrosecondExample.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        xmlns:local="clr-namespace:MicrosecondExample"
        Title="Microsecond Selection" Width="800" Height="400">
    <Grid>
        <telerik:RadTimeSpanPicker x:Name="timeSpanPicker"
                                  EditMode="DropDownOnly"
                                  StringFormat="hh\:mm\:ss\.ffffff"
                                  VerticalAlignment="Top">
            <telerik:RadTimeSpanPicker.TimeSpanComponents>
                <telerik:HourTimeSpanComponent Maximum="23" Step="1" />
                <telerik:MinuteTimeSpanComponent Maximum="59" Step="1" />
                <telerik:SecondTimeSpanComponent Maximum="59" Step="1" />
                <telerik:MillisecondTimeSpanComponent Maximum="999" Step="1" />
                <local:MicrosecondTimeSpanComponent Header="Microseconds"
                                                   Minimum="0"
                                                   Maximum="999"
                                                   Step="1" />
            </telerik:RadTimeSpanPicker.TimeSpanComponents>
        </telerik:RadTimeSpanPicker>
    </Grid>
</Window>

The escaped separators are literals in the TimeSpan format. The local namespace references the custom component defined in the same project. The example represents a duration below 24 hours.

3. Assign a value in ticks to retain the microsecond portion.

Set an Initial Value

C#

using System;
using System.Windows;

namespace MicrosecondExample
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            this.timeSpanPicker.Value = new TimeSpan(452961234560L);
        }
    }
}

The control displays 12:34:56.123456. In the dropdown, the millisecond component selects 123 and the microsecond component selects 456.

The following image shows the custom component with a selected duration of 01:30:00.589788.

Keep EditMode="DropDownOnly" for this example. The built-in text editor handles fractional sections as milliseconds. Setting a six-digit StringFormat does not add microsecond text editing. RadTimeSpanPicker edits a duration, not a date or a time zone.

See Also

• RadTimeSpanPicker Overview
• Custom TimeSpan Components
• RadTimeSpanPicker StringFormat