Hi John,

I discussed the topic with the developer. As a result, we reopened the issue.

Please keep tracking the status of the item for more updates.

Thank you once again for noticing.

Regards,
Hristian Stefanov
Progress Telerik

Hi John,

I tested the behavior, and it seems the issue is fixed only for a non-nullable DateTime value. The problem should have been fixed for nullable values as well. That being said, I will discuss the topic with the developer that worked on the issue and get back to you as soon as I can.

In the meantime, you can test with non-nullable value:

<div class="demo-section k-form k-form-vertical">
    <div class="k-form-field">
        <label for="travel-date" class="k-label k-form-label">Travel Date</label>
        <div class="k-form-field-wrap">
            <TelerikDatePicker @bind-Value="@selectedDate" Id="travel-date" Format="yyyy-MM-dd"></TelerikDatePicker>
        </div>
    </div>
    <div class="k-form-field">
        <p>The selected travel date is: <strong>@selectedDate.ToLongDateString()</strong></p>
    </div>
</div>

@code  {
    private DateTime selectedDate = DateTime.Now;
}

Regards,
Hristian Stefanov
Progress Telerik

Hi John,

Thank you for the detailed description and provided reproduction.

The reported issue is a confirmed bug. We already have an open bug report that will cover the behavior here planned for our next 3.0.0 release:

DatePicker loses focus when the input date starts with 0

I'm marking this item as "Duplicated" to the above public post.

Please let me know if you need more information.

Regards,
Hristian Stefanov
Progress Telerik