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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26
src/AdvancedCalculator/Views/MainView.axaml
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@ -36,11 +36,14 @@
AutomationProperties.Name="Variables list"> AutomationProperties.Name="Variables list">
<ListBox.ItemTemplate> <ListBox.ItemTemplate>
<DataTemplate x:DataType="m:VariableItem"> <DataTemplate x:DataType="m:VariableItem">
<Button Command="{Binding $parent[UserControl].DataContext.InsertVariableCommand}" <Button Background="Transparent" BorderThickness="0" Padding="8" MinHeight="44"
CommandParameter="{Binding VariableName}" AutomationProperties.Name="Insert variable"
Background="Transparent" BorderThickness="0" Padding="8" MinHeight="44" Tag="{Binding}"
AutomationProperties.Name="Insert variable"> DataContext="{Binding $parent[UserControl].DataContext}"
<Grid ColumnDefinitions="Auto,*,Auto"> 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}" <TextBlock Grid.Column="0" FontFamily="{StaticResource MDI}"
FontSize="{DynamicResource IconSizeM}" Text="{Binding Icon}" VerticalAlignment="Center" Margin="0,0,8,0" /> FontSize="{DynamicResource IconSizeM}" Text="{Binding Icon}" VerticalAlignment="Center" Margin="0,0,8,0" />
<TextBlock Grid.Column="1" Text="{Binding VariableName}" FontWeight="Bold" VerticalAlignment="Center" /> <TextBlock Grid.Column="1" Text="{Binding VariableName}" FontWeight="Bold" VerticalAlignment="Center" />
@ -66,11 +69,14 @@
AutomationProperties.Name="Functions list"> AutomationProperties.Name="Functions list">
<ListBox.ItemTemplate> <ListBox.ItemTemplate>
<DataTemplate x:DataType="m:FunctionDefinitionItem"> <DataTemplate x:DataType="m:FunctionDefinitionItem">
<Button Command="{Binding $parent[UserControl].DataContext.InsertFunctionCommand}" <Button Background="Transparent" BorderThickness="0" Padding="8" MinHeight="44"
CommandParameter="{Binding FunctionName}" AutomationProperties.Name="Insert function"
Background="Transparent" BorderThickness="0" Padding="8" MinHeight="44" Tag="{Binding}"
AutomationProperties.Name="Insert function"> DataContext="{Binding $parent[UserControl].DataContext}"
<StackPanel Spacing="8"> 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"> <StackPanel Orientation="Horizontal" Spacing="8" VerticalAlignment="Center">
<TextBlock FontFamily="{StaticResource MDI}" Text="{Binding Icon}" /> <TextBlock FontFamily="{StaticResource MDI}" Text="{Binding Icon}" />
<TextBlock Text="{Binding FunctionName}" FontWeight="Bold" /> <TextBlock Text="{Binding FunctionName}" FontWeight="Bold" />