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'
' DoubleType.vb
'
' Author:
' Mizrahi Rafael (rafim@mainsoft.com)
' Guy Cohen (guyc@mainsoft.com)
'
' Copyright (C) 2002-2006 Mainsoft Corporation.
' Copyright (C) 2004-2006 Novell, Inc (http://www.novell.com)
'
' Permission is hereby granted, free of charge, to any person obtaining
' a copy of this software and associated documentation files (the
' "Software"), to deal in the Software without restriction, including
' without limitation the rights to use, copy, modify, merge, publish,
' distribute, sublicense, and/or sell copies of the Software, and to
' permit persons to whom the Software is furnished to do so, subject to
' the following conditions:
'
' The above copyright notice and this permission notice shall be
' included in all copies or substantial portions of the Software.
'
' THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
' EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
' MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
' NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
' LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
' OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
' WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Imports System
Imports System.Runtime.InteropServices
Namespace Microsoft.VisualBasic.CompilerServices
<System.ComponentModel.EditorBrowsable(ComponentModel.EditorBrowsableState.Never)> _
Public NotInheritable Class DoubleType
Private Sub New()
End Sub
' FromObject(Value) -> FromObject(Value, Nothing)
Public Shared Function FromObject(ByVal Value As Object) As Double
'implicit casting of Nothing returns 0
If Value Is Nothing Then
Return 0
End If
Return DoubleType.FromObject(Value, Nothing)
End Function
Public Shared Function FromObject(ByVal Value As Object, ByVal NumberFormat As System.Globalization.NumberFormatInfo) As Double
'implicit casting of Nothing returns 0
If Value Is Nothing Then
Return 0
End If
If TypeOf Value Is Boolean Then
Return ((-1D) * (Convert.ToDouble(Value)))
End If
If TypeOf Value Is String Then
Return FromString(DirectCast(Value, String), NumberFormat)
End If
Return Convert.ToDouble(Value)
End Function
Public Shared Function FromString(ByVal Value As String) As Double
Return DoubleType.FromString(Value, Nothing)
End Function
Public Shared Function FromString(ByVal Value As String, ByVal NumberFormat As System.Globalization.NumberFormatInfo) As Double
Try
If NumberFormat Is Nothing Then NumberFormat = Threading.Thread.CurrentThread.CurrentCulture.NumberFormat
Return DoubleType.Parse(Value, NumberFormat)
Catch ex As Exception
Throw New InvalidCastException(String.Format(Utils.GetResourceString("CastFromStringToType"), Value, "Double"), ex)
End Try
End Function
Public Shared Function Parse(ByVal Value As String) As Double
Return DoubleType.Parse(Value, Nothing)
End Function
Public Shared Function Parse(ByVal Value As String, ByVal NumberFormat As System.Globalization.NumberFormatInfo) As Double
'implicit casting of Nothing to Double returns 0
If (Value Is Nothing) Then
Return 0
End If
Return Double.Parse(Value, NumberFormat)
End Function
Friend Shared Function TryParse(ByVal value As String, <OutAttribute()> ByRef result As Double) As Boolean
'Grasshopper still does not support Double.TryParse
#If TARGET_JVM = False Then
Return Double.TryParse(value, result)
#Else
Try
result = Double.Parse(value)
Return True
Catch ex As Exception
Return False
End Try
#End If
End Function
End Class
End Namespace
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