If you wan to convert from a string that represents a double number to a double value that can used used in calculations, use Parse(string) method of the Double type.
Dim dValue, dValue1 As Double
Dim sValue As String
sValue = "189.9887"
dValue = Double.Parse(sValue)
dValue1 = dValue * 10
Posted by: Ly Meng | post date: 02-06-2013 | Subject: VB.NET Programming Language
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