@HuiLiu-MSFT This issue was not about SharpLibHid library. I just used this library to make a code sample for you. I totally could use the raw input api to make the same code sample for you by c#. My main question is How to prevent specific keyboard inputing into TextBox in WPF. Please note the main issue.

@LimitlessTechnology-2700 It seemed that you did not understand my question. I just want to get a summary answer from Microsoft FTE about which scenario will make IME pop-up show. Because when I switch to Japanese, the pop-up shown. When I switch to English, the pop-up doesn't show.

I've tried it, but it did not work.

$('#divInputs').show(0, function () { setFocus('btnAction'); }); It still did not work.

It means that I have to process the initialization code every time when I submit the form to an action and return the view again.

@NicoZhu-MSFT Thanks for your response.

Because of my project's special requirement. I want to know if it supports shift-jis. If it doesn't support shift-jis, I won't insist on using shift-jis, I will choose to use utf8. Thanks.

@YiyiYou-MSFT Could you confirm it?

In the '_Layout.cshtml' file, I've changed the charset to 'Shift_JIS' and rewrite the response header's like the following:

this.Response.ContentType = $"text/html;charset=Shift_JIS";

It still shows the Japanese words in garbled code.

@Bruce-SqlWork Could you give me a response?

The Response doens't have ContentEncoding property in asp.net core.

@Bruce-SqlWork Did you mean the razor doesn't support 'shift-jis' encoding?

Please provide a example about dictionary with lock.

You did not understand my question. The Xamarin community toolkit sample app only shows to initialize the LocalizationResourceManager when the project only has one resx file. In my case, I will have many resx file, how to deal with it?

@sylvainmoingeon described my problem accurately. @JessieZhang-2116 How to deal with this case.