Converting textbox string to float?

Question

I\'m basically trying to write a basic converter in visual studio 2008, and I have 2 text boxes, one which gets input from the user, and one which gives output with the result.

Answer 1

Fixing it for you,

         String^ i1 = textBox1->Text;
         float rez = (float)(Convert::ToDouble(i1)*4.35);
         textBox2->Text = rez.ToString();

Basically, you want to convert your string to an actual number, do the math, and then make it back into a string for displaying purposes.