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Sep 14th, 2021, 06:32 AM
#1
Thread Starter
Addicted Member
 [RESOLVED] Build a SpotLight Control Iusse Unrecognized class
Hello,
I'm new to WPF(coming from winform), and I'm trying to build a "spotlight control". When I try to compile I get BC30002 SpotLight:LedControl is not defined, but it actually exist.
This is the xaml code:
Code:
<UserControl x:Class="StopLight"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:SpotLight"
mc:Ignorable="d"
d:DesignHeight="46" d:DesignWidth="135">
<UserControl.Resources>
<Style TargetType="local:LedControl">
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="BorderBrush" Value="Black"/>
<Setter Property="Margin" Value="5"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="local:LedControl">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid Background="Transparent" Name="grd"
Margin="{TemplateBinding Padding}"
VerticalAlignment="Stretch"
Width="{Binding Path=ActualHeight, Mode=OneWay, RelativeSource={RelativeSource Self}}">
<Ellipse x:Name="LedBorder"
Fill="{TemplateBinding Background}"
Stroke="{TemplateBinding BorderBrush}"
StrokeThickness="2"
Stretch="Uniform"/>
<Ellipse x:Name="CenterGlow" Stretch="Uniform">
<Ellipse.Fill>
<RadialGradientBrush>
<GradientStop Color="White" Offset="-0.25"/>
<GradientStop Color="Transparent" Offset="0.91"/>
</RadialGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse x:Name="CornerLight" Stretch="Uniform" Margin="2">
<Ellipse.Fill>
<RadialGradientBrush Center="0.15 0.15" RadiusX="0.5" RadiusY="0.5">
<GradientStop Color="White" Offset="0"/>
<GradientStop Color="Transparent" Offset="1"/>
</RadialGradientBrush>
</Ellipse.Fill>
</Ellipse>
</Grid>
<ContentPresenter x:Name="content" Grid.Column="1" Margin="4,0,0,0"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
RecognizesAccessKey="True"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="true">
<Setter TargetName="LedBorder" Property="Fill" Value="{Binding Path=OnColor, RelativeSource={RelativeSource TemplatedParent}}"/>
<Setter TargetName="content" Property="TextElement.Foreground" Value="{Binding Path=OnColor, RelativeSource={RelativeSource TemplatedParent}}"/>
</Trigger>
<Trigger Property="IsChecked" Value="false">
<Setter TargetName="LedBorder" Property="Fill" Value="{Binding Path=OffColor, RelativeSource={RelativeSource TemplatedParent}}"/>
<Setter TargetName="content" Property="TextElement.Foreground" Value="{Binding Path=OffColor, RelativeSource={RelativeSource TemplatedParent}}"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter TargetName="CenterGlow" Property="Fill">
<Setter.Value>
<RadialGradientBrush Opacity="1">
<GradientStop Color="Transparent" Offset="-0.5" />
<GradientStop Color="#888" Offset="1" />
</RadialGradientBrush>
</Setter.Value>
</Setter>
<Setter TargetName="content" Property="TextElement.Foreground" Value="#888"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</UserControl.Resources>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*" />
<ColumnDefinition Width="1*" />
<ColumnDefinition Width="1*" />
</Grid.ColumnDefinitions>
<local:LedControl x:Name="btnRed" OnColor="Red" IsChecked="True" Height="36" OffColor="#FF550c08" Width="36" Grid.Column="0" Click="btnRed_Click"/>
<local:LedControl x:Name="btnYellow" OnColor="LimeGreen" IsChecked="false" Height="36" OffColor="#FF054005" Width="36" Grid.Column="2" Click="btnYellow_Click" />
<local:LedControl x:Name="btnGreen" OnColor="Yellow" IsChecked="false" Height="36" OffColor="#FF9BA40C" Width="36" Grid.Column="1" Click="btnGreen_Click"/>
</Grid>
</UserControl>
And this is the code behind:
Code:
Imports LedControl
Public Class SpotLight
Private Sub btnRed_Click(sender As Object, e As RoutedEventArgs)
If btnRed.cheched = False Then
btnRed.cheched = True
btnGreen.checked = False
btnYellow.checked = False
End If
End Sub
Private Sub btnGreen_Click(sender As Object, e As RoutedEventArgs)
If btnGreen.cheched = False Then
btnRed.cheched = False
btnGreen.checked = True
btnYellow.checked = False
End If
End Sub
Private Sub btnYellow_Click(sender As Object, e As RoutedEventArgs)
If btnYellow.cheched = False Then
btnRed.cheched = False
btnGreen.checked = False
btnYellow.checked = True
End If
End Sub
End Class
Public Class LedControl
Inherits CheckBox
Shared Sub New()
DefaultStyleKeyProperty.OverrideMetadata(GetType(LedControl), New FrameworkPropertyMetadata(GetType(LedControl)))
End Sub
Public Shared ReadOnly OnColorProperty As DependencyProperty = DependencyProperty.Register("OnColor", GetType(Brush), GetType(LedControl), New PropertyMetadata(Brushes.Green))
Public Property OnColor As Brush
Get
Return CType(GetValue(OnColorProperty), Brush)
End Get
Set(ByVal value As Brush)
SetValue(OnColorProperty, value)
End Set
End Property
Public Shared ReadOnly OffColorProperty As DependencyProperty = DependencyProperty.Register("OffColor", GetType(Brush), GetType(LedControl), New PropertyMetadata(Brushes.Red))
Public Property OffColor As Brush
Get
Return CType(GetValue(OffColorProperty), Brush)
End Get
Set(ByVal value As Brush)
SetValue(OffColorProperty, value)
End Set
End Property
End Class
I did not understand why I still get this error..
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Sep 15th, 2021, 11:39 AM
#2
Re: Build a SpotLight Control Iusse Unrecognized class
 Originally Posted by hannibal smith
Hello,
I'm new to WPF(coming from winform), and I'm trying to build a "spotlight control". When I try to compile I get BC30002 SpotLight:LedControl is not defined, but it actually exist.
This is the xaml code:
Code:
<UserControl x:Class="StopLight"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:SpotLight"
mc:Ignorable="d"
d:DesignHeight="46" d:DesignWidth="135">
<UserControl.Resources>
<Style TargetType="local:LedControl">
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="BorderBrush" Value="Black"/>
<Setter Property="Margin" Value="5"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="local:LedControl">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid Background="Transparent" Name="grd"
Margin="{TemplateBinding Padding}"
VerticalAlignment="Stretch"
Width="{Binding Path=ActualHeight, Mode=OneWay, RelativeSource={RelativeSource Self}}">
<Ellipse x:Name="LedBorder"
Fill="{TemplateBinding Background}"
Stroke="{TemplateBinding BorderBrush}"
StrokeThickness="2"
Stretch="Uniform"/>
<Ellipse x:Name="CenterGlow" Stretch="Uniform">
<Ellipse.Fill>
<RadialGradientBrush>
<GradientStop Color="White" Offset="-0.25"/>
<GradientStop Color="Transparent" Offset="0.91"/>
</RadialGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse x:Name="CornerLight" Stretch="Uniform" Margin="2">
<Ellipse.Fill>
<RadialGradientBrush Center="0.15 0.15" RadiusX="0.5" RadiusY="0.5">
<GradientStop Color="White" Offset="0"/>
<GradientStop Color="Transparent" Offset="1"/>
</RadialGradientBrush>
</Ellipse.Fill>
</Ellipse>
</Grid>
<ContentPresenter x:Name="content" Grid.Column="1" Margin="4,0,0,0"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
RecognizesAccessKey="True"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="true">
<Setter TargetName="LedBorder" Property="Fill" Value="{Binding Path=OnColor, RelativeSource={RelativeSource TemplatedParent}}"/>
<Setter TargetName="content" Property="TextElement.Foreground" Value="{Binding Path=OnColor, RelativeSource={RelativeSource TemplatedParent}}"/>
</Trigger>
<Trigger Property="IsChecked" Value="false">
<Setter TargetName="LedBorder" Property="Fill" Value="{Binding Path=OffColor, RelativeSource={RelativeSource TemplatedParent}}"/>
<Setter TargetName="content" Property="TextElement.Foreground" Value="{Binding Path=OffColor, RelativeSource={RelativeSource TemplatedParent}}"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter TargetName="CenterGlow" Property="Fill">
<Setter.Value>
<RadialGradientBrush Opacity="1">
<GradientStop Color="Transparent" Offset="-0.5" />
<GradientStop Color="#888" Offset="1" />
</RadialGradientBrush>
</Setter.Value>
</Setter>
<Setter TargetName="content" Property="TextElement.Foreground" Value="#888"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</UserControl.Resources>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*" />
<ColumnDefinition Width="1*" />
<ColumnDefinition Width="1*" />
</Grid.ColumnDefinitions>
<local:LedControl x:Name="btnRed" OnColor="Red" IsChecked="True" Height="36" OffColor="#FF550c08" Width="36" Grid.Column="0" Click="btnRed_Click"/>
<local:LedControl x:Name="btnYellow" OnColor="LimeGreen" IsChecked="false" Height="36" OffColor="#FF054005" Width="36" Grid.Column="2" Click="btnYellow_Click" />
<local:LedControl x:Name="btnGreen" OnColor="Yellow" IsChecked="false" Height="36" OffColor="#FF9BA40C" Width="36" Grid.Column="1" Click="btnGreen_Click"/>
</Grid>
</UserControl>
And this is the code behind:
Code:
Imports LedControl
Public Class SpotLight
Private Sub btnRed_Click(sender As Object, e As RoutedEventArgs)
If btnRed.cheched = False Then
btnRed.cheched = True
btnGreen.checked = False
btnYellow.checked = False
End If
End Sub
Private Sub btnGreen_Click(sender As Object, e As RoutedEventArgs)
If btnGreen.cheched = False Then
btnRed.cheched = False
btnGreen.checked = True
btnYellow.checked = False
End If
End Sub
Private Sub btnYellow_Click(sender As Object, e As RoutedEventArgs)
If btnYellow.cheched = False Then
btnRed.cheched = False
btnGreen.checked = False
btnYellow.checked = True
End If
End Sub
End Class
Public Class LedControl
Inherits CheckBox
Shared Sub New()
DefaultStyleKeyProperty.OverrideMetadata(GetType(LedControl), New FrameworkPropertyMetadata(GetType(LedControl)))
End Sub
Public Shared ReadOnly OnColorProperty As DependencyProperty = DependencyProperty.Register("OnColor", GetType(Brush), GetType(LedControl), New PropertyMetadata(Brushes.Green))
Public Property OnColor As Brush
Get
Return CType(GetValue(OnColorProperty), Brush)
End Get
Set(ByVal value As Brush)
SetValue(OnColorProperty, value)
End Set
End Property
Public Shared ReadOnly OffColorProperty As DependencyProperty = DependencyProperty.Register("OffColor", GetType(Brush), GetType(LedControl), New PropertyMetadata(Brushes.Red))
Public Property OffColor As Brush
Get
Return CType(GetValue(OffColorProperty), Brush)
End Get
Set(ByVal value As Brush)
SetValue(OffColorProperty, value)
End Set
End Property
End Class
I did not understand why I still get this error..
Hi, I noticed that you have syntax errrors in your code.
Ex. <UserControl x:Class="StopLight"> in XAML but the code behind is Public Class SpotLight. And the properties of the buttons too specifically the spelling. Have you tried fixing all the syntax errors? I've experienced this before and once I fixed them, I can now access the class/user control.
- kgc
-
Sep 16th, 2021, 12:04 AM
#3
Thread Starter
Addicted Member
Re: Build a SpotLight Control Iusse Unrecognized class
Yes, thanks. I had solved last night. Thanks.
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