String Stays at Default Value In Windows Form

String Stays at Default Value In Windows Form

I've been trying to fix this for an hour now to no avail. I have a text
box that I've been using for user input, and at a point in the program, I
need to ask the player what their name is. This code is inside the KeyDown
event for the text box:
if (e.KeyCode == Keys.Enter & progress == 1 & nameready == true)
{
input = inputBox.Text;
inputBox.Clear();
playername = input
}
This should work fine. I know it's not an issue with my input system,
since other if statements just like this work fine. However, in this
single statement, input always equals "". I even added an if statement to
run a method if input != "" and it never triggers. If this the input
variable doesn't work in this statement, why does it work in any others?