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The strange behavior of XAML Parse when installing Text and adding Interaction.Triggers. WPF

I set the Text property of the Text box control and also add Interaction.Trigger to it. An exception is thrown. When I try to XamlReader.Parse() this XAML using XamlReader.Parse() :

Xaml, which I have:

 <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>

Exception message: {The "Text" property is already set to "TextBox". Line number '1' and line position 'X'. "}

the position of the line points to the closing tag TextBox </TextBox>

If I do not install Interaction.Triggers, it parses OK, but at least one set of Interaction.Triggers, it throws an exception ...

Can someone give me some light on this please?

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1 answer

The problem is the xml:space="preserve" in the TextBox declaration. If you reset it, it will be analyzed as expected.

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