Posted 16 years ago
by Phil Devaney
-
Senior Software Engineer,
Serck Controls Ltd
Version: 4.5.0470
Platform: .NET 3.5
Environment: Windows Vista (64-bit)
I have found a problem where changes to Background.Color or RimBrush.Color by a binding do not take immediate effect if IsBackgroundEffectEnabled or IsRimEffectEnabled are true. The changes seem to take effect if another property is changed. If IsXXXEffectEnabled is false, changes to the brush take effect immediately.
The problem can be easily reproduced with the following code:Simply update the color in one of the TextBoxes and observe the gauge does not update. Then uncheck the corresponding CheckBox and it will update. With the CheckBox still unchecked, update the Color again and the gauge should update immediately.
Note that for some frame types on a LinearGauge, changing RimBrush.Color does update part of the rim to the new color, but not all of it.
Phil
The problem can be easily reproduced with the following code:
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:gauge="http://schemas.actiprosoftware.com/winfx/xaml/gauge"
Title="Window1" SizeToContent="WidthAndHeight" >
<Window.Resources>
<ControlTemplate x:Key="gaugeEditor">
<Grid Margin="10">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="5"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="5"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="5"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Label Grid.Row="0" Grid.Column="0" Content="Back"/>
<TextBox Grid.Row="0" Grid.Column="2" MinWidth="100">
<TextBox.Text>
<Binding Path="Background.Color"
UpdateSourceTrigger="PropertyChanged"
ValidatesOnExceptions="True"/>
</TextBox.Text>
</TextBox>
<CheckBox Grid.Row="0" Grid.Column="4"
VerticalAlignment="Center" Content="Effect"
IsChecked="{Binding IsBackgroundEffectEnabled}"/>
<Label Grid.Row="2" Grid.Column="0" Content="Rim"/>
<TextBox Grid.Row="2" Grid.Column="2" MinWidth="100">
<TextBox.Text>
<Binding Path="RimBrush.Color"
UpdateSourceTrigger="PropertyChanged"
ValidatesOnExceptions="True"/>
</TextBox.Text>
</TextBox>
<CheckBox Grid.Row="2" Grid.Column="4"
VerticalAlignment="Center" Content="Effect"
IsChecked="{Binding IsRimEffectEnabled}"/>
</Grid>
</ControlTemplate>
</Window.Resources>
<StackPanel Orientation="Horizontal">
<StackPanel>
<gauge:CircularGauge x:Name="gauge1" Margin="10"
Width="300" Height="200" Radius="100">
<gauge:CircularGauge.Background>
<SolidColorBrush Color="LightBlue"/>
</gauge:CircularGauge.Background>
<gauge:CircularGauge.RimBrush>
<SolidColorBrush Color="DarkGreen"/>
</gauge:CircularGauge.RimBrush>
</gauge:CircularGauge>
<ContentControl Template="{StaticResource gaugeEditor}"
DataContext="{Binding ElementName=gauge1}"/>
</StackPanel>
<StackPanel>
<gauge:LinearGauge x:Name="gauge2" Margin="10"
Width="300" Height="200">
<gauge:LinearGauge.Background>
<SolidColorBrush Color="LightBlue"/>
</gauge:LinearGauge.Background>
<gauge:LinearGauge.RimBrush>
<SolidColorBrush Color="DarkGreen"/>
</gauge:LinearGauge.RimBrush>
</gauge:LinearGauge>
<ContentControl Template="{StaticResource gaugeEditor}"
DataContext="{Binding ElementName=gauge2}"/>
</StackPanel>
</StackPanel>
</Window>
Note that for some frame types on a LinearGauge, changing RimBrush.Color does update part of the rim to the new color, but not all of it.
Phil
