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Textbox KeyBinding with AcceptsReturn = true

Anonymous User 3904 04 Sep 2013

Basically I have a textbox which will accept return when a checkbox is unchecked and when it's checked I want the textbox to react on KeyBinding I wrote.

<TextBox AcceptsReturn="{Binding IsChecked, ElementName=EnterCheckbox, Converter={StaticResource InvertBooleanConverter}}" >

<TextBox.InputBindings>

<KeyBinding Key="Enter" Command="{Binding CmdEnterPressed}"/>

</TextBox.InputBindings>

</TextBox >

Now in any cases, despite of fact that TextBox.AcceptsReturn is set to True when I press [Return] KeyBinding is firing and I want not to fire it but to go to next line of TB.

Ask by Anonymous User

Updated 04 Sep 2013

1 Answers

Sumit Kesarwani 04 Sep 2013

Hi Samuel,

You can implement CanExecute for that command like this:

public bool CanExecute(object parameter)
{
    bool acceptReturns
= (bool)parameter;
    return
!acceptReturns;
}

And in your XAML (as far as CommandParameter is used for both Execute and CanExecute methods):

<KeyBinding Key="Enter" Command="{Binding
CmdEnterPressed}" 
                       
CommandParameter="{Binding RelativeSource={RelativeSourceMode=FindAncestor,
AncestorType={x:Type TextBox}}, Path=AcceptsReturn}"/>

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