wagesj45/advanced-calculator
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

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

Browse source
This commit is contained in:
Codex CLI 2025-08-27 03:27:26 -05:00
commit fa6a24ea30
1 changed files with 36 additions and 30 deletions
Download patch file Download diff file Expand all files Collapse all files

26
src/AdvancedCalculator/Views/MainView.axaml
View file

@ -36,11 +36,14 @@
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">
<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" />
@ -66,11 +69,14 @@
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">
<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" />