Question

I am at the beginning of a steep learning curve with Vc++ (C++/CLI)

How do you format text (numbers) in a text box on a form?

printf() was easy, in the good old days 😉

The following works but there are lots of decimal places.

I only need to display one decimal point.

that is 22.4 not 22.4178301

//Calculate the Power and current

fPower2 = (pow((fVoltagePkPk * 0.5 * 0.707),2) / 2);

fCurrent2 = fPower2 / (fVoltagePkPk * 0.5 * 0.707);



//Display the Power amd current in the text boxes

txtPower2->Text = Convert::ToString(fPower2);

txtCurrent2->Text = Convert::ToString(fCurrent2);

Thanks

Answer 1

You can use

fPower2.ToString("F1")
fCurrent2.ToString("F1")

The F1 refers to 1 fixed digit. See http://msdn.microsoft.com/en-us/library/dwhawy9k.aspx#Y2205 for more formatting options.