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Extensiones/TimeSpanExtensions.vb

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+Option Strict Off
+Imports System.Runtime.CompilerServices
+Imports System.Linq.Expressions
+
+Namespace Extensiones
+    Public Module TimeSpanExtensions
+        <Extension()>
+        Public Function TimeSpanAHoraString(ByVal ts As TimeSpan?) As String
+            If ts.HasValue AndAlso ts.Value.Ticks <> 0 Then
+                If ts.Value.TotalMinutes < 0 Then
+                    Return "-" & Fix(Math.Abs(ts.Value.TotalHours)).ToString.PadLeft(2, "0") & ":" & Math.Abs(CInt(ts.Value.Minutes)).ToString.PadLeft(2, "0")
+                Else
+                    Return Fix(Math.Abs(ts.Value.TotalHours)).ToString.PadLeft(2, "0") & ":" & Math.Abs(CInt(ts.Value.Minutes)).ToString.PadLeft(2, "0")
+                End If
+            Else
+                Return "00:00"
+            End If
+        End Function
+    End Module
+End Namespace