Materialdesigninxamltoolkit: Validation in textbox remains in other slide in transition

[darturdotnetdeveloper]

Good day Sir,

Here is the bug again. Don't know how to deal with this bug. I remove the transition effect and the bug is still there. I hope you can help me. Thanks in advance. God speed :)

[darturdotnetdeveloper]

btw i'm using the latest version :)

[Tonghua-Li]

If the view is scroll-able, after scrolling, the validation text will be apart from binded textbox.

[Keboo]

@darturdotnetdeveloper the root of the problem comes from the way the transitioner works. When the slides transition it toggles the opacity of the slides. Because the validation is shown in a popup it persists and sits on top of the other slides. There is an attached property you can set to hide the validation.

This is probably a bug that should be fixed in MDIX (don't show validation if Opacity is 0), but in the meantime a workaround like this should work (untested code).

<TextBox>
    <TextBox.Style>
        <Style TargetType="TextBox" BasedOn="{StaticResource MaterialDesignTextBox}">
            <Style.Triggers>
                <Trigger Property="Opacity" Value="0">
                    <Setter Property="materialDesign:ValidationAssist.Suppress" Value="True" />
                </Trigger>
            </Style.Triggers>
        </Style>
    </TextBox.Style>
</TextBox>

[darturdotnetdeveloper]

Thanks for the response. Gonna try it this day and I will update this thread for the result.

[Tide]

I am running into this same issue. I tried the fix but it did not work. It looks like the suggested workaround is looking for the opacity of the TextBox to go to 0.

You do not have to switch slides to have this issue. You can see it reproduced in the demo on the fields tab. It does not even change slides. If you go to the Tight Space Validation example and enter some text then delete it. The validation rule will come up. Move your mouse over to the side and scroll down and the validation rule will follow.

[nmaillet]

Doesn't seem to be resolved yet. Tweaking @Keboo's workaround, this worked for me:

<Style
    x:Key="{x:Type md:TransitionerSlide}"
    BasedOn="{StaticResource {x:Type md:TransitionerSlide}}"
    TargetType="md:TransitionerSlide">
  <Style.Triggers>
    <Trigger Property="Opacity" Value="0">
  </Style.Triggers>
</Style>

[Keboo]

1334 (duplicate of this error) has an example project attached to it as well.

[wim07101993]

I am having a related issue with the TextBoxUnderlines:

[Keboo]

@wim07101993 Can you test with the latest 3.2.0 preview NuGet package, I believe your issue is already resolved.

[wim07101993]

Tried and verified

[darturdotnetdeveloper]

Hi Kevin. It's already good.

thanks for asking

On Sun, Jun 14, 2020 at 9:11 AM Kevin B [e-mail] wrote:

Closed #695
https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/issues/695
.

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