For some reason, KeyBindings for my UserControl do not work as soon as the WPF application loads. They work after I press the button on the form, but not when I focus on the form by clicking or dragging tabs or dragging or something like that. And when they work, my enter keys print a random number. (sometimes 5, sometimes 7, etc.).
<UserControl x:Class="WpfCalculator.View.CalculatorView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Height="300" Width="300"
>
<UserControl.InputBindings>
<KeyBinding Key="DELETE" Command="{Binding Path=IBackspaceOnInput}" />
<KeyBinding Key="BACKSPACE" Command="{Binding Path=IBackspaceOnInput}" />
<KeyBinding Key="NUMPAD0" Command="{Binding Path=IAppendToUserInput}" CommandParameter="0" />
<KeyBinding Key="NUMPAD1" Command="{Binding Path=IAppendToUserInput}" CommandParameter="1" />
<KeyBinding Key="NUMPAD2" Command="{Binding Path=IAppendToUserInput}" CommandParameter="2" />
<KeyBinding Key="NUMPAD3" Command="{Binding Path=IAppendToUserInput}" CommandParameter="3" />
<KeyBinding Key="NUMPAD4" Command="{Binding Path=IAppendToUserInput}" CommandParameter="4" />
<KeyBinding Key="NUMPAD5" Command="{Binding Path=IAppendToUserInput}" CommandParameter="5" />
<KeyBinding Key="NUMPAD6" Command="{Binding Path=IAppendToUserInput}" CommandParameter="6" />
<KeyBinding Key="NUMPAD7" Command="{Binding Path=IAppendToUserInput}" CommandParameter="7" />
<KeyBinding Key="NUMPAD8" Command="{Binding Path=IAppendToUserInput}" CommandParameter="8" />
<KeyBinding Key="NUMPAD9" Command="{Binding Path=IAppendToUserInput}" CommandParameter="9" />
<KeyBinding Key="D0" Command="{Binding Path=IAppendToUserInput}" CommandParameter="0" />
<KeyBinding Key="D1" Command="{Binding Path=IAppendToUserInput}" CommandParameter="1" />
<KeyBinding Key="D2" Command="{Binding Path=IAppendToUserInput}" CommandParameter="2" />
<KeyBinding Key="D3" Command="{Binding Path=IAppendToUserInput}" CommandParameter="3" />
<KeyBinding Key="D4" Command="{Binding Path=IAppendToUserInput}" CommandParameter="4" />
<KeyBinding Key="D5" Command="{Binding Path=IAppendToUserInput}" CommandParameter="5" />
<KeyBinding Key="D6" Command="{Binding Path=IAppendToUserInput}" CommandParameter="6" />
<KeyBinding Key="D7" Command="{Binding Path=IAppendToUserInput}" CommandParameter="7" />
<KeyBinding Key="D8" Command="{Binding Path=IAppendToUserInput}" CommandParameter="8" />
<KeyBinding Key="D9" Command="{Binding Path=IAppendToUserInput}" CommandParameter="9" />
<KeyBinding Key="ADD" Command="{Binding Path=IAppendToUserInput}" CommandParameter="+" />
<KeyBinding Key="SUBTRACT" Command="{Binding Path=IAppendToUserInput}" CommandParameter="-" />
<KeyBinding Key="MULTIPLY" Command="{Binding Path=IAppendToUserInput}" CommandParameter="*" />
<KeyBinding Key="DIVIDE" Command="{Binding Path=IAppendToUserInput}" CommandParameter="/" />
<KeyBinding Key="Return" Command="{Binding Path=ICalculateExpression}" CommandParameter="" />
<KeyBinding Key="Enter" Command="{Binding Path=ICalculateExpression}" CommandParameter="" />
<KeyBinding Key="Escape" Command="{Binding Path=IClearInput}" CommandParameter="" />
<KeyBinding Gesture="CTRL+M" Command="{Binding Path=IRememberExpression}" CommandParameter="" />
<KeyBinding Gesture="CTRL+R" Command="{Binding Path=IRecallExpression}" CommandParameter="" />
<KeyBinding Gesture="CTRL+X" Command="{Binding Path=IForgetExpression}" CommandParameter="" />
<KeyBinding Key="Left" Command="{Binding Path=IMMoveCursor}" CommandParameter="1" />
<KeyBinding Key="Right" Command="{Binding Path=IMMoveCursor}" CommandParameter="-1" />
</UserControl.InputBindings>
<Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Height="305" Width="489">
<TextBox Name="input" HorizontalAlignment="Right" IsReadOnly="True" Margin="0,12,200,271" Text="{Binding Path=UserInput}" Width="275" />
<Button Content="CE" Margin="143,0,323,147" Command="{Binding Path=IBackspaceOnInput}" CommandParameter="" Height="23" VerticalAlignment="Bottom" />
<Button Content="1" Height="23" HorizontalAlignment="Right" Margin="0,106,294,176" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="1" />
<Button Content="2" Height="23" HorizontalAlignment="Right" Margin="0,106,265,176" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="2" />
<Button Content="3" Height="23" HorizontalAlignment="Right" Margin="0,106,236,176" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="3" />
<Button Content="4" Height="23" HorizontalAlignment="Right" Margin="0,77,294,205" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="4" />
<Button Content="5" Height="23" HorizontalAlignment="Right" Margin="0,77,236,205" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="5" />
<Button Content="6" Height="23" HorizontalAlignment="Right" Margin="0,77,265,205" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="6" />
<Button Content="7" Height="23" HorizontalAlignment="Right" Margin="0,48,294,234" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="7" />
<Button Content="8" Height="23" HorizontalAlignment="Right" Margin="0,48,265,234" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="8" />
<Button Content="9" Height="23" HorizontalAlignment="Right" Margin="0,48,236,234" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="9" />
<Button Content="0" Height="23" HorizontalAlignment="Left" Margin="201,135,0,147" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="0" />
<Button Content="+" Height="23" HorizontalAlignment="Right" Margin="0,48,201,234" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="+" />
<Button Content="-" Height="23" HorizontalAlignment="Right" Margin="0,77,201,205" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="-" />
<Button Content="*" Height="23" HorizontalAlignment="Right" Margin="0,106,201,176" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="*" />
<Button Content="/" Height="23" HorizontalAlignment="Right" Margin="0,135,201,147" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="/" />
<Button Content="." Height="23" HorizontalAlignment="Right" Margin="0,135,236,147" Width="23" Command="{Binding Path=IAppendToUserInput}" CommandParameter="9" />
<Button Content="C" HorizontalAlignment="Right" Margin="0,164,323,118" Width="23" Command="{Binding Path=IClearInput}" CommandParameter="" />
<Button Content="MC" Height="23" HorizontalAlignment="Right" Margin="0,0,323,234" VerticalAlignment="Bottom" Width="23" Command="{Binding Path=IForgetExpression}" CommandParameter=""/>
<Button Content="M+" Height="23" HorizontalAlignment="Right" Margin="0,0,323,176" VerticalAlignment="Bottom" Width="23" Command="{Binding Path=IRememberExpression}" CommandParameter=""/>
<Button Content="MR" Height="23" HorizontalAlignment="Right" Margin="0,0,323,205" VerticalAlignment="Bottom" Width="23" Command="{Binding Path=IRecallExpression}" CommandParameter=""/>
<Expander ExpandDirection="Left" Header="History" Height="91" HorizontalAlignment="Right" Margin="0,193,200,0" VerticalAlignment="Top" Width="275">
<ListView ItemsSource="{Binding Path=History}" >
<ListView.View>
<GridView >
<GridViewColumn Header="Start" DisplayMemberBinding="{Binding Started}"/>
<GridViewColumn Header="End" DisplayMemberBinding="{Binding Completed}"/>
<GridViewColumn Header="Expression" DisplayMemberBinding="{Binding Calculation}"/>
<GridViewColumn Header="Solution" DisplayMemberBinding="{Binding Result}"/>
</GridView>
</ListView.View>
</ListView>
</Expander>
<Button Command="{Binding Path=ICalculateExpression}" CommandParameter="" IsEnabled="{Binding Path=IsEqualsBtnEnabled}" Content="=" Height="23" Margin="172,0,236,118" VerticalAlignment="Bottom" />
</Grid></UserControl>
I really have not encountered anyone else with this particular problem, so I am not sure what to give more than that. Let me know if any other information is needed.