Why my code don't work when it should? - windows-phone-7

Question

problem is when i want to write something in textbox i can't focus on it.
thanks for cooperate:)
<!--LayoutRoot is the root grid where all page content is placed-->
<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<!--TitlePanel contains the name of the application and page title-->
<StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
<TextBlock x:Name="ApplicationTitle" Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/>
<TextBlock x:Name="PageTitle" Text="Hello Phone" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
</StackPanel>
<!--ContentPanel - place additional content here-->
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<TextBox Grid.Column="0" Name="MessageTextBox"
FontSize="{StaticResource PhoneFontSizeExtraLarge}" Margin="20,20,10,20" />
<Button Grid.Column="1" Name="ClickMeButton" Content="Click Me"
HorizontalAlignment="Right" Padding="4" Margin="10,20,20,20" Click="ClickMeButton_Click" />
<Grid Grid.Row="2">
<TextBlock Name="BannerTextBlock" Style="{StaticResource PhoneTextExtraLargeStyle}"
Foreground="#FFFF7A00" HorizontalAlignment="Stretch"
TextWrapping="Wrap" TextAlignment="Center" FontWeight="Bold" />
</Grid>
</Grid>
</Grid>
<!--Sample code showing usage of ApplicationBar-->
<!--<phone:PhoneApplicationPage.ApplicationBar>
<shell:ApplicationBar IsVisible="True" IsMenuEnabled="True">
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button1.png" Text="Button 1"/>
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button2.png" Text="Button 2"/>
<shell:ApplicationBar.MenuItems>
<shell:ApplicationBarMenuItem Text="MenuItem 1"/>
<shell:ApplicationBarMenuItem Text="MenuItem 2"/>
</shell:ApplicationBar.MenuItems>
</shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>-->

Answer 1

Try explicitly setting the property "IsEnabled" to true.
EDIT: I actually tried it and it doesn't look like it works. Strangely enough if you call Focus() on it from the code behind it works.
EDIT: Figured it out! You need to set proper "RowDefintions" on your Grid. Check out this code:
<!--TitlePanel contains the name of the application and page title-->
<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<!--TitlePanel contains the name of the application and page title-->
<StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
<TextBlock x:Name="ApplicationTitle" Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/>
<TextBlock x:Name="PageTitle" Text="Hello Phone" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
</StackPanel>
<!--ContentPanel - place additional content here-->
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<TextBox Grid.Row="0" Grid.Column="0" Name="MessageTextBox" Margin="20,20,10,20" IsEnabled="True" />
<Button Grid.Row="0" Grid.Column="1" Name="ClickMeButton" Content="Click Me" HorizontalAlignment="Right" Padding="4" Margin="10,20,20,20" Click="ClickMeButton_Click" IsEnabled="True" />
<Grid Grid.Row="1">
<TextBlock Name="BannerTextBlock" Style="{StaticResource PhoneTextExtraLargeStyle}" Foreground="#FFFF7A00" HorizontalAlignment="Stretch" TextWrapping="Wrap" TextAlignment="Center" FontWeight="Bold" />
</Grid>
</Grid>
</Grid>