我正在尝试使用此控制模板作为资源来为多边形指定符号。用户在创建多边形时选择多边形的颜色。但是,当用户创建新的多边形并选择不同的颜色时,会切换到所有添加的多边形的最新颜色。
的Xaml:
<!-- Polygon -->
<esri:SimpleFillSymbol x:Key="KmlPolygonStyle">
<esri:SimpleFillSymbol.ControlTemplate>
<ControlTemplate x:Name="CustomKmlPolygonTemplate">
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="Element"
Storyboard.TargetProperty="StrokeThickness"
To="1" Duration="0:0:0.1"/>
<DoubleAnimation Storyboard.TargetName="Element"
Storyboard.TargetProperty="Fill.Opacity"
To="0.5" Duration="0:0:0.1"/>
</Storyboard>
</VisualState>
<VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="Element"
Storyboard.TargetProperty="StrokeThickness"
To="2" Duration="0:0:0.1"/>
<DoubleAnimation Storyboard.TargetName="Element"
Storyboard.TargetProperty="Fill.Opacity"
To="0.7" Duration="0:0:0.1"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Selected">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="Element"
Storyboard.TargetProperty="StrokeThickness"
To="3" Duration="0:0:0.1"/>
<DoubleAnimation Storyboard.TargetName="Element"
Storyboard.TargetProperty="Fill.Opacity"
To="0.9" Duration="0:0:0.1"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Path x:Name="Element"
Fill="{Binding Symbol.Fill}" Stroke="{Binding Symbol.BorderBrush}"
StrokeStartLineCap="Round" StrokeThickness="1"
StrokeLineJoin="Round" StrokeEndLineCap="Round" />
</Grid>
</ControlTemplate>
</esri:SimpleFillSymbol.ControlTemplate>
</esri:SimpleFillSymbol>
C#代码:
var kmlSymbol = Application.Current.Resources["KmlPolygonStyle"] as SimpleFillSymbol;
kmlSymbol.Fill = new SolidColorBrush(LayerColorPicker.SelectedColor.Color);
kmlSymbol.BorderBrush = new SolidColorBrush(LayerColorPicker.SelectedColor.Color);
kmlSymbol.BorderThickness = 1;
kmlSymbol.Fill.Opacity = 0.5;
kmlRenderer.Symbol = kmlSymbol;
如何使每个添加的多边形使用适当的选定颜色。
答案 0 :(得分:0)
通过将绑定更改为一次清除了问题。
... <Path x:Name="Element"
Fill="{Binding Symbol.Fill, Mode=OneTime}" Stroke="{Binding Symbol.BorderBrush, Mode=OneTime}"
StrokeStartLineCap="Round" StrokeThickness="1"
StrokeLineJoin="Round" StrokeEndLineCap="Round"/> ...