Ereignisse auf Elementen im relativen Layout werden nicht ausgelöst

Question

Ich verwende Xamarin Formulare und Ereignisse für Elemente innerhalb eines relativen Layouts werden nicht ausgelöst. Ich habe versucht, sie auch hinter dem Code zu registrieren und schieße immer noch nicht. Ich habe eine Beschränkung von -250, weil Schaltflächen unten auf dem Bildschirm angezeigt wurden und es die einzige Möglichkeit war, sie zu verschieben. Hier ist meine XAML:

<StackLayout Orientation="Vertical"> 
    <RelativeLayout> 
     <Grid Margin="0,0,10,0" 
       x:Name="grid" 
       RelativeLayout.YConstraint="{ConstraintExpression Type=RelativeToParent, Property=Y, Factor=0, Constant=10}" 
       RelativeLayout.XConstraint="{ConstraintExpression Type=RelativeToParent, Property=X, Factor=0, Constant=0}" 
       > 


     <Grid.RowDefinitions> 
      <RowDefinition Height="Auto"/> 
     </Grid.RowDefinitions> 
     <Grid.ColumnDefinitions> 
      <ColumnDefinition Width="50*" /> 
      <ColumnDefinition Width="50*" /> 
     </Grid.ColumnDefinitions> 

     <Label Grid.Column="0" 
       Grid.Row="0" 
       Text="IP Address" 
       Margin="10,10,0,0" 
       HorizontalOptions="StartAndExpand"/> 
     <Entry Grid.Column="1" 
       Grid.Row="0" 
      x:Name="IPAddress" 
      Placeholder="IP" 
       WidthRequest="200" 

       Margin="0,0,10,0" 
      HorizontalOptions="EndAndExpand"/> 
     <Label Grid.Column="0" 
       Grid.Row="1" 
       Text="Port" 
       Margin="10,10,0,0" 
       MinimumWidthRequest="100" 
       HorizontalOptions="Start"/> 
     <Entry Grid.Column="1" 
       Grid.Row="1" 
      x:Name="Port" 
       Margin="0,0,10,0" 
      Placeholder="Port" 
       WidthRequest="200" 
      HorizontalOptions="End"/> 
     <Label Grid.Column="0" 
       Grid.Row="2" 
       Margin="10,10,0,0" 
       Text="User Name" 
       MinimumWidthRequest="100" 
       HorizontalOptions="Start"/> 
     <Entry Grid.Column="1" 
       Grid.Row="2" 
      x:Name="UserName" 
       Margin="0,0,10,0" 
       WidthRequest="200" 
      Placeholder="User Name" 
      HorizontalOptions="End"/> 
     <Label Grid.Column="0" 
       Grid.Row="3" 
       Margin="10,10,0,0" 
       Text="Password" 
       MinimumWidthRequest="100" 
       HorizontalOptions="Start"/> 
     <Entry Grid.Column="1" 
       Grid.Row="3" 
      x:Name="Password" 
       IsPassword="True" 
       Margin="0,0,10,0" 
       WidthRequest="200" 
      Placeholder="Password" 
      HorizontalOptions="End"/> 

     </Grid> 

    </RelativeLayout> 
    <RelativeLayout 
     IsEnabled="True"> 
     <Button x:Name="SaveBtn" 
       IsEnabled="True" 
       WidthRequest="100" 
       RelativeLayout.YConstraint="{ConstraintExpression Type=RelativeToParent, Property=Y, Factor=0, Constant=-250}" 
       RelativeLayout.XConstraint="{ConstraintExpression Type=RelativeToParent, Property=X, Factor=0, Constant=30}" 
       Clicked="SaveBtn_Clicked" 
       BorderColor="Gray" 
       Text="Save"></Button> 
     <Button x:Name="ClearFavorites" 
       IsEnabled="True" 
       WidthRequest="120" 
       RelativeLayout.YConstraint="{ConstraintExpression Type=RelativeToParent, Property=Y, Factor=0, Constant=-250}" 
       RelativeLayout.XConstraint="{ConstraintExpression Type=RelativeToParent, Property=Width, Factor=0.5, Constant=20}" 
       Clicked="ClearFavorites_Clicked" 
       BorderColor="Gray" 
       Text="Clear Favorites"></Button> 
    </RelativeLayout> 
</StackLayout> 

Answer 1

Nach der Diskussion im Chat diese

<StackLayout Orientation="Vertical"> 
<RelativeLayout> 
<Grid Margin="0,0,10,0" 
x:Name="grid" 
RelativeLayout.YConstraint="{ConstraintExpression Type=RelativeToParent, Property=Y, Factor=0, Constant=10}" 
RelativeLayout.XConstraint="{ConstraintExpression Type=RelativeToParent, Property=X, Factor=0, Constant=0}" 
> 


<Grid.RowDefinitions> 
<RowDefinition Height="Auto"/> 
</Grid.RowDefinitions> 
<Grid.ColumnDefinitions> 
<ColumnDefinition Width="50*" /> 
<ColumnDefinition Width="50*" /> 
</Grid.ColumnDefinitions> 

<Label Grid.Column="0" 
Grid.Row="0" 
Text="IP Address" 
Margin="10,10,0,0" 
HorizontalOptions="StartAndExpand"/> 
<Entry Grid.Column="1" 
Grid.Row="0" 
x:Name="IPAddress" 
Placeholder="IP" 
WidthRequest="200" 

Margin="0,0,10,0" 
HorizontalOptions="EndAndExpand"/> 
<Label Grid.Column="0" 
Grid.Row="1" 
Text="Port" 
Margin="10,10,0,0" 
MinimumWidthRequest="100" 
HorizontalOptions="Start"/> 
<Entry Grid.Column="1" 
Grid.Row="1" 
x:Name="Port" 
Margin="0,0,10,0" 
Placeholder="Port" 
WidthRequest="200" 
HorizontalOptions="End"/> 
<Label Grid.Column="0" 
Grid.Row="2" 
Margin="10,10,0,0" 
Text="User Name" 
MinimumWidthRequest="100" 
HorizontalOptions="Start"/> 
<Entry Grid.Column="1" 
Grid.Row="2" 
x:Name="UserName" 
Margin="0,0,10,0" 
WidthRequest="200" 
Placeholder="User Name" 
HorizontalOptions="End"/> 
<Label Grid.Column="0" 
Grid.Row="3" 
Margin="10,10,0,0" 
Text="Password" 
MinimumWidthRequest="100" 
HorizontalOptions="Start"/> 
<Entry Grid.Column="1" 
Grid.Row="3" 
x:Name="Password" 
IsPassword="True" 
Margin="0,0,10,0" 
WidthRequest="200" 
Placeholder="Password" 
HorizontalOptions="End"/> 

</Grid> 

</RelativeLayout> 
<RelativeLayout 
IsEnabled="True"> 
<Button x:Name="SaveBtn" 
IsEnabled="True" 
WidthRequest="100" 
RelativeLayout.YConstraint="{ConstraintExpression Type=RelativeToParent, Property=Y, Factor=0, Constant=50}" 
RelativeLayout.XConstraint="{ConstraintExpression Type=RelativeToParent, Property=X, Factor=0, Constant=30}" 
Clicked="SaveBtn_Clicked" 
BorderColor="Gray" 
Text="Save"></Button> 
<Button x:Name="ClearFavorites" 
IsEnabled="True" 
WidthRequest="120" 
RelativeLayout.YConstraint="{ConstraintExpression Type=RelativeToParent, Property=Y, Factor=0, Constant=50}" 
RelativeLayout.XConstraint="{ConstraintExpression Type=RelativeToParent, Property=Width, Factor=0.5, Constant=20}" 
Clicked="ClearFavorites_Clicked" 
BorderColor="Gray" 
Text="Clear Favorites"></Button> 
</RelativeLayout> 
</StackLayout>