How do i make my TextBox resize with my Form?

Question

What i am saying is...

When i use my program, i resize my form but my textbox stays the same. I want it to resize itself with the main form.

What is the code for this, and for what?

Answer 1

For that are the Dock and Anchor properties. 

Look to it in your textbox

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Success
Cor

Answer 2

Thanks! I used Dock!

Answer 3

Thanks! I used Dock!

don't forget to mark Cor's answer as the answer

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thanks for any help