How to change the font size of all(n number of ) texblocks inside the stack panel programmatically?

How to change the font size of all(n number of ) texblocks inside the
stack panel programmatically?

References

Reference NO 1

http://stackoverflow.com/questions/15196269/how-to-change-the-font-size-of-alln-number-of-texblocks-inside-the-stack-pane

Reference NO 2

http://stackoverflow.com/questions/15021021/how-to-programmatically-assign-the-textbox-size-to-auto

Reference NO 3

http://stackoverflow.com/questions/18297341/extract-phone-number-from-text

Reference NO 4

http://stackoverflow.com/questions/8867319/how-to-add-monospaced-text

Reference NO 5

http://msdn.microsoft.com/en-us/library/windows/apps/hh465045.aspx

Reference NO 6

http://www.silverlightshow.net/items/Silverlight-ComboBox.aspx

Reference NO 7

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Reference NO 8

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