I came here looking to see if this was reported, as we are experiencing the exact same issue.

As mentioned in the comments, this can be reproduced without setting AllowCaretMode to true. Our testing has also identified other components that have the same issue, not just the DateInput component (some use the DateInput as part of a composit component, I'm sure, but there is at least one other). Here are the places our testers were able to reproduce the issue so far:

• DateInput
• DatePicker (used directly or when used indirectly, such as in the Grid Filter Row)
• DateTimePicker (used directly or when used indirectly, such as in the Grid Filter Row)
• TimePicker
• NumericTextBox

I'm assuming the MaskedTextBox will also have the same issue, but we haven't done much testing there.

To give you an idea of how important this is, picture tabular layout with a bunch of NumericTextBoxes, similar to a basic spreadsheet with 5 columns and 10 rows. The user needs to enter fields in each textbox, one after another. This is likely done with the tab key and the numeric keypad, as there's quite a bit of data entry. On an average desktop computer, the issue can be reproduced about 20% of the time. There are 50 inputs on this form, so the data will be invalid in approximately 10 of the 50 fields. From our users' perspective, this is unacceptable and is basically unusable.

We're also pretty late in testing and do not have time for any major changes to the project. A fix or workaround is urgently needed.

If I create a support ticket, will you be able to work on this regardless of number of vote? We will soon deploy our Blazor Server app to production.

Thanks

yes so the bug happens for DatePicker Blazor Server version too (default setting without AllowCaretMode ). Not happening in the Web Assembly version (the corresponding REPL page of Telerik Demo page)

In the demo page, select all DatePicker (CTRL + A) so the whole DatePicker is in focus. Then try type in 01 01 2001

This is sample output:

https://demos.telerik.com/blazor-ui/datepicker/overview

This is the REPL page for that demo page (Web Assembly version)

https://blazorrepl.telerik.com/QxEMGMFR22V3lOy053

Another issue for DateInput Blazor Server version

go to the demo page https://demos.telerik.com/blazor-ui/dateinput/overview focus on the DateInput, press CTRL A to focus on Whole input. try input 01 01 2001, it wont fill the input.

This is not happening in the REPL provided for the demo (Web Assembly version).

BTW the title should be DateInput, not DatePicker