Postback handlers are triggered on link button but not on button

🌎 Discussion in English
1

I am having difficulties adding custom postback handlers. I have now stripped them right back to basics and found that the postback handlers don’t seem to work on buttons at all. Any ideas why in the following code the link button triggers the handler but the button does not?

    <dot:LinkButton Text="Save" Validation.Target="{value: Patient}"  Click="{command: EditTab()}">
        <PostBack.Handlers>
            <dot:ConfirmPostBackHandler Message="Do you wish to save your changes?" />
        </PostBack.Handlers>
    </dot:LinkButton>

    <bs:Button Text="Save" Click="{command: EditTab()}" Validation.Target="{value: Patient}" IsSubmitButton="true" PostBack.Concurrency="Deny">
        <PostBack.Handlers>
            <%--no postback handlers triggered!!!!!--%>
            <dot:ConfirmPostBackHandler Message="Do you wish to save your changes?" />
        </PostBack.Handlers>
    </bs:Button>
2

This is a bug in the Bootstrap 5 library. We’ll be releasing a public preview of 4.2 shortly - the issue should be fixed there.