wagesj45/advanced-calculator
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Bindings: fix command lookup in DataTemplates by scoping Button.DataContext to root VM and using Tag to preserve item context; set CommandParameter via Tag.

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Codex CLI 2025-08-27 03:27:26 -05:00
commit fa6a24ea30
1 changed files with 36 additions and 30 deletions
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66
src/AdvancedCalculator/Views/MainView.axaml
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@ -36,13 +36,16 @@
AutomationProperties.Name="Variables list">
<ListBox.ItemTemplate>
<DataTemplate x:DataType="m:VariableItem">
<Button Command="{Binding $parent[UserControl].DataContext.InsertVariableCommand}"
CommandParameter="{Binding VariableName}"
Background="Transparent" BorderThickness="0" Padding="8" MinHeight="44"
AutomationProperties.Name="Insert variable">
<Grid ColumnDefinitions="Auto,*,Auto">
<TextBlock Grid.Column="0" FontFamily="{StaticResource MDI}"
FontSize="{DynamicResource IconSizeM}" Text="{Binding Icon}" VerticalAlignment="Center" Margin="0,0,8,0" />
<Button Background="Transparent" BorderThickness="0" Padding="8" MinHeight="44"
AutomationProperties.Name="Insert variable"
Tag="{Binding}"
DataContext="{Binding $parent[UserControl].DataContext}"
Command="{Binding InsertVariableCommand}"
CommandParameter="{Binding Tag.VariableName, RelativeSource={RelativeSource Self}}">
<Grid ColumnDefinitions="Auto,*,Auto"
DataContext="{Binding Tag, RelativeSource={RelativeSource AncestorType=Button}}">
<TextBlock Grid.Column="0" FontFamily="{StaticResource MDI}"
FontSize="{DynamicResource IconSizeM}" Text="{Binding Icon}" VerticalAlignment="Center" Margin="0,0,8,0" />
<TextBlock Grid.Column="1" Text="{Binding VariableName}" FontWeight="Bold" VerticalAlignment="Center" />
<StackPanel Grid.Column="2" Spacing="6" VerticalAlignment="Center">
<TextBlock Text="{Binding Value}" />
@ -65,30 +68,33 @@
ItemsSource="{x:Static m:FunctionDefinitionItem.DefinedFunctions}"
AutomationProperties.Name="Functions list">
<ListBox.ItemTemplate>
<DataTemplate x:DataType="m:FunctionDefinitionItem">
<Button Command="{Binding $parent[UserControl].DataContext.InsertFunctionCommand}"
CommandParameter="{Binding FunctionName}"
Background="Transparent" BorderThickness="0" Padding="8" MinHeight="44"
AutomationProperties.Name="Insert function">
<StackPanel Spacing="8">
<StackPanel Orientation="Horizontal" Spacing="8" VerticalAlignment="Center">
<TextBlock FontFamily="{StaticResource MDI}" Text="{Binding Icon}" />
<TextBlock Text="{Binding FunctionName}" FontWeight="Bold" />
<DataTemplate x:DataType="m:FunctionDefinitionItem">
<Button Background="Transparent" BorderThickness="0" Padding="8" MinHeight="44"
AutomationProperties.Name="Insert function"
Tag="{Binding}"
DataContext="{Binding $parent[UserControl].DataContext}"
Command="{Binding InsertFunctionCommand}"
CommandParameter="{Binding Tag.FunctionName, RelativeSource={RelativeSource Self}}">
<StackPanel Spacing="8"
DataContext="{Binding Tag, RelativeSource={RelativeSource AncestorType=Button}}">
<StackPanel Orientation="Horizontal" Spacing="8" VerticalAlignment="Center">
<TextBlock FontFamily="{StaticResource MDI}" Text="{Binding Icon}" />
<TextBlock Text="{Binding FunctionName}" FontWeight="Bold" />
</StackPanel>
<TextBlock Text="{Binding FunctionDescription}" FontStyle="Italic" TextWrapping="Wrap" />
<ItemsControl ItemsSource="{Binding FunctionArguments}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock Text="{Binding Key}" />
<TextBlock Text="{Binding Value}" FontStyle="Italic" Margin="8,0,0,0" />
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</StackPanel>
<TextBlock Text="{Binding FunctionDescription}" FontStyle="Italic" TextWrapping="Wrap" />
<ItemsControl ItemsSource="{Binding FunctionArguments}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock Text="{Binding Key}" />
<TextBlock Text="{Binding Value}" FontStyle="Italic" Margin="8,0,0,0" />
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</StackPanel>
</Button>
</DataTemplate>
</Button>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>