windows phone 8 - Hot to make content float over keyboard? -

I have a page witch that has a fixed title after the content and a text box that the user posted on my app Enables the keyboard to appear when the user presses the text box and makes all the control slides impossible for the user to scroll again?

How can I control the bottom of the keyboard so that the user can scroll it

My layout:

  & lt; Grid & gt; & Lt; Grid.RowDefinitions & gt; & Lt;  
 Row Definition Height = "Auto" /> gt; & Lt; RowDefinition Height = "*" /> gt; & Gt; Grid.Radiffenius & amp ;; & Lt; Rectangle width = "auto" height = "50" Fill = "red" /> gt; & Lt; Grid grid. Raw = "1" & gt; Rectangle = "600" = "Green" vertical alignment = "top" /> gt; & Gt; & Gt; Text Box Grid Rows = "1" width = "auto" background = "black" vertical alignment = "bottom" /> gt; & Gt; Grid & gt;  

it is happening

This is what I hope to happen

The following article explains how the OS To solve the problem by adding changes to the page.