Category "setw"

How to make an array of pointers and make the user enter the size of it?

I want to make an array, and inside this array there are pointers, like this: int *arrp[size]; and I want the user to enter the size of it. I tried to do this:

I need something in c# which work like the setw() in c++

I am using a richTextBox in c#. I need to display strings of different length inside one richTextBox but these strings should be perfectly aligned.. this is an