How to add a number to an array?

Question

C++ / C#

The program is made using Windows forms. I'm new to C#, I don't know how to push into an array the numbers that the user enters into the textBox.

Answer 1

Look at collection types.
In general, an array has a specific size.
so you probably better use the
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var list = new List<float>();
list.Add(float.Parse(txtBox.Text));