2017-09-27 17:12:36 +02:00
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Imports System.IO
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2016-07-04 16:45:45 +02:00
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Public Class ParametriSetup
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Private _ElencoParametri As DataSet
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Private _NomeFileSetup As String
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Public Sub New(ByVal FileSetup As String)
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_ElencoParametri = New DataSet
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_NomeFileSetup = FileSetup
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If FileSetup <> "" Then
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CaricaParametriSetup()
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End If
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End Sub
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Public Sub New()
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_ElencoParametri = New DataSet
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_NomeFileSetup = ""
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End Sub
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Public Sub CaricaParametriSetup()
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_ElencoParametri = LeggiXmlDataSet("Setup", _NomeFileSetup, "Nome")
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End Sub
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2017-09-27 17:12:36 +02:00
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public sub CaricaParametriSetupStream(ByVal stream As Stream)
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_ElencoParametri = LeggiXmlDataSetStream("Setup", stream, "Nome")
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End sub
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2016-07-04 16:45:45 +02:00
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Public Sub SalvaParametriSetup()
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If System.IO.File.Exists(_NomeFileSetup) = True Then
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Kill(_NomeFileSetup)
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End If
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_ElencoParametri.WriteXml(_NomeFileSetup)
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End Sub
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Public Function LeggiParametroString(ByVal NomeParametro As String) As String
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Dim Risposta As String = ""
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Try
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Dim LElenco As DataRow() = _ElencoParametri.Tables("Setup").Select("Nome='" & NomeParametro & "'")
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Dim LaRiga As DataRow
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For Each LaRiga In LElenco
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Risposta = LaRiga("Valore").ToString
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Next
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Catch
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Risposta = ""
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End Try
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Return Risposta
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End Function
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Public Function LeggiParametroBoolean(ByVal NomeParametro As String) As Boolean
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Dim Risposta As String = ""
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Try
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Dim LElenco As DataRow() = _ElencoParametri.Tables("Setup").Select("Nome='" & NomeParametro & "'")
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Dim LaRiga As DataRow
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For Each LaRiga In LElenco
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Risposta = LaRiga("Valore").ToString
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Next
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Catch
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Risposta = ""
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End Try
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Select Case Risposta.ToUpper
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Case "TRUE", "OK", "SI", "1", "YES", "VERO"
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Return True
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Case Else
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Return False
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End Select
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End Function
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Public Sub AggiornaParametro(ByVal NomeParametro As String, ByVal ValoreParametro As Object)
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Try
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If _ElencoParametri.Tables("Setup") Is Nothing Then
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Dim TabellaTmp As New DataTable("Setup")
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Dim RigaTmp As DataRow
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Dim LaColonna As DataColumn
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LaColonna = TabellaTmp.Columns.Add("Nome", System.Type.GetType("System.String"))
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LaColonna = TabellaTmp.Columns.Add("Valore", System.Type.GetType("System.String"))
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'* Aggiunge alla tabella tutte le righe
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RigaTmp = TabellaTmp.NewRow
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RigaTmp("Nome") = NomeParametro
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RigaTmp("Valore") = ValoreParametro
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TabellaTmp.Rows.Add(RigaTmp)
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_ElencoParametri.Tables.Add(TabellaTmp)
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Else
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Dim LElenco As DataRow() = _ElencoParametri.Tables("Setup").Select("Nome='" & NomeParametro & "'")
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If LElenco.Length = 0 Then
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Dim LaRiga As DataRow
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LaRiga = _ElencoParametri.Tables("Setup").NewRow
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LaRiga("Nome") = NomeParametro
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LaRiga("Valore") = ValoreParametro
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_ElencoParametri.Tables("Setup").Rows.Add(LaRiga)
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Else
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LElenco(0).Item("Valore") = ValoreParametro
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End If
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End If
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Catch
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End Try
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End Sub
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Private Function LeggiXmlDataTable(ByVal NomeTabella As String, ByVal NomeFileXml As String, Optional ByVal NomeColonnaChiave As String = "") As DataTable
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'* Crea e Legge il dataset dal file xml
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Dim DataSetXml As New System.Data.DataSet
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DataSetXml.ReadXml(NomeFileXml)
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'* Aggiunge il campo chiave
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If NomeColonnaChiave <> "" Then
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DataSetXml.Tables(NomeTabella).Constraints.Add(NomeColonnaChiave, DataSetXml.Tables(NomeTabella).Columns(NomeColonnaChiave), True)
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End If
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'* Restituisce la risposta
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Return DataSetXml.Tables(NomeTabella)
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End Function
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2017-09-27 17:12:36 +02:00
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Private Shared Function LeggiXmlDataSetStream(ByVal NomeTabella As String, ByVal stream As Stream, Optional ByVal NomeColonnaChiave As String = "") As DataSet
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2016-07-04 16:45:45 +02:00
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'* Crea e Legge il dataset dal file xml
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Dim DataSetXml As New System.Data.DataSet
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2017-09-27 17:12:36 +02:00
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'DataSetXml.ReadXml(NomeFileXml)
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DataSetXml.ReadXml(stream)
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2016-07-04 16:45:45 +02:00
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'* Aggiunge il campo chiave
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If NomeColonnaChiave <> "" Then
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DataSetXml.Tables(NomeTabella).Constraints.Add(NomeColonnaChiave, DataSetXml.Tables(NomeTabella).Columns(NomeColonnaChiave), True)
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End If
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'* Restituisce la risposta
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Return DataSetXml
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End Function
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2017-09-27 17:12:36 +02:00
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Private Shared Function LeggiXmlDataSet(ByVal NomeTabella As String, ByVal NomeFileXml As String, Optional ByVal NomeColonnaChiave As String = "") As DataSet
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'* Crea e Legge il dataset dal file xml
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Dim DataSetXml As New System.Data.DataSet
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DataSetXml.ReadXml(NomeFileXml)
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'* Aggiunge il campo chiave
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If NomeColonnaChiave <> "" Then
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DataSetXml.Tables(NomeTabella).Constraints.Add(NomeColonnaChiave, DataSetXml.Tables(NomeTabella).Columns(NomeColonnaChiave), True)
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End If
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2016-07-04 16:45:45 +02:00
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2017-09-27 17:12:36 +02:00
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'* Restituisce la risposta
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Return DataSetXml
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End Function
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2016-07-04 16:45:45 +02:00
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Public Property NomeFileSetup() As String
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Get
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Return _NomeFileSetup
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End Get
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Set(ByVal Value As String)
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_NomeFileSetup = Value
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End Set
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End Property
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End Class
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