Strange XAML Parse behaviour when set Text and add Interaction.Triggers. WPF

I set the Text property of the Textbox control, and also i add an Interaction.Trigger to it. An exception is thrown When I try to parse the this XAML using `XamlReader.Parse()`: The xaml which i have is: ``` <Grid xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:cmd="clr-namespace:GalaSoft.MvvmLight.Command;assembly=GalaSoft.MvvmLight.Extras.WPF4" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" Name="TopPanel" > <Grid.ColumnDefinitions> <ColumnDefinition /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition /> <RowDefinition /> </Grid.RowDefinitions> <TextBox Name="TextBox_8241" FocusManager.IsFocusScope="True" Grid.Column="1" Grid.Row="1" xml:space="preserve" Text="{Binding ppp, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"> <i:Interaction.Triggers> <i:EventTrigger EventName="MouseEnter"> <cmd:EventToCommand PassEventArgsToCommand="True" Command="{Binding TextBox_8241_MouseEnterCommand}" /> </i:EventTrigger> </i:Interaction.Triggers> </TextBox> </Grid> ``` The exception message is: {"''Text' property has already been set on 'TextBox'.' Line number '1' and line position 'X'."} line position points to the closing tag of TextBox `</TextBox>` If I don't set any Interaction.Triggers it parses OK, but at least one Interaction.Triggers set, it throws the exception... Can anyone give me some light on this please?