I need to add System.Windows.Interactivity.dll library via Reference Manager. In Visual Studio 2017, I did not find it. All search results that begins from System.Windows showed on the screenshot below:
I thought that this library becomes build-in in WPF project of current Visual Studio version, so when I added the bellow C# code, no warnings from IDE has been displayed:
private RelayCommand doubleCommand;
public RelayCommand DoubleCommand {
get {
return doubleCommand ??
(doubleCommand = new RelayCommand(obj => {
Phone phone = obj as Phone;
if (phone != null) {
Phone phoneCopy = new Phone {
Company = phone.Company,
Price = phone.Price,
Title = phone.Title
};
Phones.Insert(0, phoneCopy);
}
}));
}
}
However, when I added the following XAML markup, it says that Interaction, EventTrigger and InvokeCommandAction has not been found in clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity namespace:
<Window x:Class="MVVM_Tutorial.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:MVVM_Tutorial"
xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<!-- ... -->
<Button Content="2x">
<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseDoubleClick">
<i:InvokeCommandAction
Command="{Binding DoubleCommand}"
CommandParameter="{Binding SelectedPhone}" />
</i:EventTrigger>
</i:Interaction.Triggers>
</Button>
<!-- ... -->
</Window>
Has it relationship with System.Windows.Interactivity library or no, what have I do to solve this problem?
