Modification d'une Dependency Property dans une autre DP
Bonjour,
Dans un UserControl PlayerInformation, j'ai plusieurs DP:
PlayerArmyColor
IsRedFlagOwnedByPlayer
IsBlueFlagOwnedByPlayer
IsYellowFlagOwnedByPlayer
IsGreenFlagOwnedByPlayer
Chaque Flag est un UserControl que je rends visible ou pas si le joueur possède ou non le drapeau.
À l'initialisation, le joueur ne possède que le drapeau de sa couleur.
J'ai donc le code suivant:
Code:
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public ArmyColor PlayerArmyColor
{
get { return (ArmyColor)GetValue(PlayerArmyColorProperty); }
set { SetValue(PlayerArmyColorProperty, value); }
}
public static readonly DependencyProperty PlayerArmyColorProperty =
DependencyProperty.Register("PlayerArmyColor", typeof(ArmyColor), typeof(PlayerInformation), new PropertyMetadata(OnPlayerArmyColorChanged));
private static void OnPlayerArmyColorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var ctrl = (PlayerInformation)d;
var ac = (ArmyColor)e.NewValue;
switch (ac)
{
case ArmyColor.Blue :
ctrl.IsBlueFlagOwnedByPlayer = true;
ctrl.IsRedFlagOwnedByPlayer = false;
ctrl.IsGreenFlagOwnedByPlayer = false;
ctrl.IsYellowFlagOwnedByPlayer = false;
break;
case ArmyColor.Red:
ctrl.IsBlueFlagOwnedByPlayer = false;
ctrl.IsRedFlagOwnedByPlayer = true;
ctrl.IsGreenFlagOwnedByPlayer = false;
ctrl.IsYellowFlagOwnedByPlayer = false;
break;
case ArmyColor.Green:
ctrl.IsBlueFlagOwnedByPlayer = false;
ctrl.IsRedFlagOwnedByPlayer = false;
ctrl.IsGreenFlagOwnedByPlayer = true;
ctrl.IsYellowFlagOwnedByPlayer = false;
break;
case ArmyColor.Yellow:
ctrl.IsBlueFlagOwnedByPlayer = false;
ctrl.IsRedFlagOwnedByPlayer = false;
ctrl.IsGreenFlagOwnedByPlayer = false;
ctrl.IsYellowFlagOwnedByPlayer = true;
break;
}
} |
En fonction de la couleur j'attribue donc une valeur aux autres DP qui sont toutes de la forme suivante:
Code:
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public bool IsYellowFlagOwnedByPlayer
{
get { return (bool)GetValue(IsYellowFlagOwnedByPlayerProperty); }
set { SetValue(IsYellowFlagOwnedByPlayerProperty, value); }
}
public static readonly DependencyProperty IsYellowFlagOwnedByPlayerProperty =
DependencyProperty.Register("IsYellowFlagOwnedByPlayer", typeof(bool), typeof(PlayerInformation), new PropertyMetadata(false, OnIsYellowFlagOwnedChanged));
public static void OnIsYellowFlagOwnedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var ctrl = d as PlayerInformation;
bool isTrue = (bool)e.NewValue;
ctrl.YellowFlag.Visibility = (Visibility)(new VisibilityConverter().Convert(isTrue, typeof(Visibility), null, null));
} |
Le fait de passer la DP à true ou false rend le control flag visible ou collapsed
À l'initialisation, je crée un PlayerInformation avec PlayerArmyColor = Blue :
Code:
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<Canvas x:Name="LayoutRoot" Background="White">
<local:PlayerInformation x:Name="playerInformation" Canvas.Left="19" Canvas.Top="17" d:LayoutOverrides="Width, Height" PlayerName="Pierre" MineralsNumber="123" PlayerArmyColor="Blue"/>
<TextBlock x:Name="TbRed" Height="12" Canvas.Left="60" TextWrapping="Wrap" Text="{Binding IsRedFlagOwnedByPlayer, ElementName=playerInformation}" Canvas.Top="83" Width="84"/>
<TextBlock x:Name="TbBlue" Height="12" Canvas.Left="60" TextWrapping="Wrap" Text="{Binding IsBlueFlagOwnedByPlayer, ElementName=playerInformation}" Canvas.Top="99" Width="84"/>
<TextBlock x:Name="TbGreen" Height="12" Canvas.Left="60" TextWrapping="Wrap" Text="{Binding IsGreenFlagOwnedByPlayer, ElementName=playerInformation}" Canvas.Top="67" Width="84"/>
<TextBlock x:Name="TbYellow" Height="12" Canvas.Left="60" TextWrapping="Wrap" Text="{Binding IsYellowFlagOwnedByPlayer, ElementName=playerInformation}" Canvas.Top="115" Width="84"/>
<TextBlock Height="12" Canvas.Left="8" TextWrapping="Wrap" Text="Blue" Canvas.Top="99" Width="48"/>
<TextBlock Height="12" Canvas.Left="8" TextWrapping="Wrap" Text="Green" Canvas.Top="67" Width="48"/>
<TextBlock Height="12" Canvas.Left="8" TextWrapping="Wrap" Text="Red" Canvas.Top="83" Width="48"/>
<TextBlock Height="12" Canvas.Left="8" TextWrapping="Wrap" Canvas.Top="115" Width="48"><Run Text="Yellow"/><LineBreak/><Run/></TextBlock>
</Canvas> |
Cela devrait donc rendre collapsed tous les drapeaux à l'exception du Bleu.
Au debuggage il passe bien là où il faut :
http://i19.servimg.com/u/f19/14/69/44/64/vs201010.png
Mais dans Blend tout comme à l'éxécution tous les drapeaux restent visibles et pourtant les valeurs lues sont bonnes (à false), mais les collapsed n'ont semble-t-il pas été appelés ?
http://i19.servimg.com/u/f19/14/69/44/64/blend-10.png
En fait, il semblerait que de modifier une DP au sein d'une DP ne déclenche ensuite pas tout correctement ? Par exemple, passer le IsRedFlagOwnedByPlayer à false, aurait du appeler :
Code:
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| public static void OnIsRedFlagOwnedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var ctrl = d as PlayerInformation;
bool isTrue = (bool)e.NewValue;
ctrl.RedFlag.Visibility = (Visibility)(new VisibilityConverter().Convert(isTrue, typeof(Visibility), null, null));
} |
En tout cas, depuis OnPlayorArmyColorChanged de la DP PlayerArmyColor ...
Car lorsque je modifie directement IsRedFlagOwnedByPlayer cela fonctionne bien ...
Pour compléter l'information, le code XAML du PlayerInformation:
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<Canvas x:Name="LayoutRoot" Background="Black">
<TextBlock x:Name="TxtBlPlayerName" Text="{Binding PlayerName}" Foreground="{Binding PlayerArmyColor, Converter={StaticResource ArmyColorToArmyDarkBrush}}" FontSize="16" Width="181" Height="20" ToolTipService.ToolTip="{Binding PlayerInformationNameDescription, Source={StaticResource Lang}}" Canvas.Left="5" />
<controlsToolkit:WrapPanel x:Name="wp" Height="18" Canvas.Left="8" Canvas.Top="21" Width="50" ToolTipService.ToolTip="{Binding PlayerInformationFlagsDescription, Source={StaticResource Lang}}" Margin="0">
<local:ArmyFlag x:Name="RedFlag" HorizontalAlignment="Right" Width="auto" Margin="0,0,2,0" VerticalAlignment="Bottom" FlagColor="Red" />
<local:ArmyFlag x:Name="GreenFlag" HorizontalAlignment="Right" Width="auto" Margin="0,0,2,0" VerticalAlignment="Bottom" FlagColor="Green" />
<local:ArmyFlag x:Name="BlueFlag" HorizontalAlignment="Right" Width="auto" Margin="0,0,2,0" VerticalAlignment="Bottom" FlagColor="Blue" />
<local:ArmyFlag x:Name="YellowFlag" HorizontalAlignment="Right" Width="auto" Margin="0,0,2,0" VerticalAlignment="Bottom" FlagColor="Yellow" />
</controlsToolkit:WrapPanel>
<local:Mineral x:Name="MineralsInformation" MineralsNumber="{Binding MineralsNumber}" MinHeight="29" Canvas.Left="186" Canvas.Top="6" Width="34" Margin="0" Height="21" />
<local:Grade Canvas.Left="82" Canvas.Top="19" d:LayoutOverrides="Width, Height"/>
</Canvas> |
Merci d'avance pour votre aide.
