Changing Visual state of an Entry from code behind

Question

0

I have been trying to change Visual State of an Entry from CodeBehind. so if the entry is disabled , background color should be changed to Grey and if its normal , it should be white which is clearly defined in styles.xaml ,Based on User input, I make a call VisualStateManager.GoToState(Entry, "Disabled");or VisualStateManager.GoToState(Entry, "Normal"). Once It is disabled where the background color changes to Grey , I could not change the background color anymore even when I forcefully set it or when I call the VisualStateManager. Am I missing something?

Answer 1

Hello,

After investigating, you need to add VisualStateGroupList to XAML in order to call GotoState(entry, "Disabled") normally.

<VisualStateManager.VisualStateGroups>
    <VisualStateGroupList>
        <VisualStateGroup x:Name="CommonStates">
            <VisualState x:Name="Normal">
                <VisualState.Setters>
                    <Setter Property="BackgroundColor" Value="Lime" />
                </VisualState.Setters>
            </VisualState>

            <VisualState x:Name="Focused">
                <VisualState.Setters>
                    <Setter Property="FontSize" Value="36" />
                </VisualState.Setters>
            </VisualState>

            <VisualState x:Name="Disabled">
                <VisualState.Setters>
                    <Setter Property="BackgroundColor" Value="Pink" />
                </VisualState.Setters>
            </VisualState>

            <VisualState x:Name="PointerOver">
                <VisualState.Setters>
                    <Setter Property="BackgroundColor" Value="LightBlue" />
                </VisualState.Setters>
            </VisualState>
        </VisualStateGroup>
    </VisualStateGroupList>

</VisualStateManager.VisualStateGroups>

In addition, in .net 7 the GoToState method fails to trigger the Disabled state. Whereas in .net 6 and 8 this issue does not occur.

Best Regards,

Alec Liu.

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