Formatting a decimal so that the result always has two decimal places

The following statement calculates the payment as amount * rate.

PAYMENT.Text = "$" + Convert.ToString(Convert.ToDecimal(Convert.ToDouble(AMOUNT.Text) * Convert.ToDecimal(RATE.Text)))

and payment does not always have two trailing decimals.

I want to format payment as a currency e.g. $30.00 or $32.12.

How can I modify my statement to achieve that?
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Payment.Text = "$"
Payment.Text += (Convert.ToString(Convert.ToDecimal(Convert.ToDouble(AMOUNT.Text) * Convert.ToDecimal(RATE.Text)))).ToString("N:2")...

sib_userAuthor Commented:
When I try your solution, I get the error:
Unable to cast object of type 'System.String' to type 'System.IFormatProvider'.
Alfred A.Commented:
Try this,

PAYMENT.Text = Convert.ToDecimal(Convert.ToDouble(AMOUNT.Text) * Convert.ToDecimal(RATE.Text)).ToString("C2")


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Alfred A.Commented:
Or, you can try the following

PAYMENT.Text = String.Format("{0:C2}",Convert.ToDecimal(Convert.ToDouble(AMOUNT.Text) * Convert.ToDecimal(RATE.Text)));
PAYMENT.Text = String.Format("{0:$#.##}",Convert.ToDecimal(Convert.ToDouble(AMOUNT.Text) * Convert.ToDecimal(RATE.Text)));
PAYMENT.Text = String.Format("{0:$#.00}",Convert.ToDecimal(Convert.ToDouble(AMOUNT.Text) * Convert.ToDecimal(RATE.Text)));
Hi! Like this

PAYMENT.Text = String.Format("{0:N2}", Convert.ToDecimal(AMOUNT.Text) * Convert.ToDecimal(RATE.Text))
sib_userAuthor Commented:
Thanks to all for so many choices.
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Visual Basic.NET

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