Parse Panel or web page to a string

[aikeith]

Anyone know how to turn panel contents or a web page into the property.text of another control?

ie:

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here is some text {pretend this is a textbox} in a html file and this just keeps going.

There will be this that these and those and underneath is html that formats the this look.
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I just want to save the above to a property such as:

Textbox1.Text = TheTextAboveWithFormat

any help would be appreciated.