Imports System
Imports System.Data
Imports System.Data.SqlTypes
Imports System.Data.SqlClient
Imports System.Text.RegularExpressions

Public Class frmVertragsereignis

#Region "Deklarationen"
    Dim Vertragsereignis As New TKB.VV.Vertrag.clsVertragsereignis

    Dim sec As New TKB.VV.Utils.MySecurity
    Dim msg As New TKB.VV.Utils.MyMessage
    Dim FormReadonly As Boolean = False
    Dim FormDataChanged As Boolean = False
    Dim SpaltenTitel As New TKB.VV.Utils.Tabellenspalte

    Private Aktuelles_Vertragselement As Integer = 0
    Private Aktuelles_Vertragsereignis As Integer = 0

    Private Anzeige As Boolean = False
    Dim Neuer_Datensatz As Boolean
    Dim Plausifehler As Boolean = False

#End Region

#Region "Closing / Check_Changes"

    ''' <summary>
    ''' Schliessen des Formulars
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub FormularClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
        If Me.FormReadonly = True Then Exit Sub
        If check_changes() = False Then
            e.Cancel = True
        Else
            If Me.Vertragsereignis.Neuer_Datensatz = True Then Me.Vertragsereignis.Delete(Me.Vertragsereignis.iEreignisNr.Value)
            Globals.MyEventHanlder.Ereignis_Closed()
            Me.dispose()
        End If
    End Sub

    ''' <summary>
    ''' Prüfung, ob Datenänderungen vorgenommen wurden. 
    ''' </summary>
    ''' <remarks></remarks>
    Private Function Check_Changes() As Boolean
        If Me.FormReadonly Then Exit Function
        Dim msgres As MsgBoxResult
        If Me.FormDataChanged Then
            msgres = msg.Show_MessageYesNoCancel(3)
            Select Case msgres
                Case MsgBoxResult.Yes
                    Save_data()
                    If Plausifehler = True Then Return False
                    Return True
                Case MsgBoxResult.Cancel
                    Return False
                Case MsgBoxResult.No
                    Return True
            End Select
        Else
            Return True
        End If
    End Function

#End Region

#Region "Formular"
    ''' <summary>
    ''' Standard Constructore New
    ''' </summary>
    ''' <remarks></remarks>
    Sub New()
        InitializeComponent()
        Me.Aktuelles_Vertragsereignis = -1
    End Sub

    ''' <summary>
    ''' Formualr mit Vertragselementnr und Anzeigestatus öffnen
    ''' </summary>
    ''' <param name="Vertragselementnr">Nr des Vertragspartners</param>
    ''' <param name="Anzeige">True=Readonly, False=normal</param>
    ''' <remarks></remarks>
    Sub New(ByVal Vertragsereignisnr As Integer, Optional ByVal vertragselementnr As Integer = 0, Optional ByVal Anzeige As Boolean = False, Optional ByVal CreateNew As Boolean = False)
        MyBase.New()
        InitializeComponent()
        Me.Anzeige = Anzeige
        If CreateNew Then
            Me.Aktuelles_Vertragsereignis = Me.Vertragsereignis.Add_New(vertragselementnr)
            Me.Neuer_Datensatz = True
        Else
            Me.Aktuelles_Vertragsereignis = Vertragsereignisnr
        End If
    End Sub
    Public Overloads Sub dispose()
        Me.Vertragsereignis.dispose()
        sec = Nothing
        msg = Nothing
        MyBase.Dispose()
    End Sub

    ''' <summary>
    ''' Load-Methode
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub frmVertragsereignis_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        If Anzeige = True Then
            Me.TSBtnSuche.Enabled = False
            Me.TSBtnSave.Enabled = False
        Else
            Me.TSBtnSuche.Enabled = True
        End If
        If Me.TSBtnSave.Enabled = False Or Me.TSBtnSave.Visible = False Then
            Me.FormReadonly = True
            Me.TSBtnCopy.Enabled = False
            Me.TSBtnNew.Enabled = False
            Me.TSBtnDelete.Enabled = False
        Else
            Me.FormReadonly = False
        End If


        Load_Securitylevel()

        'Kostenarten laden
        Me.cboxKostenart.Items.Clear()
        Me.cboxKostenart.DataSource = Me.Vertragsereignis.Kostenarten
        Me.cboxKostenart.DisplayMember = "Bezeichnung"
        Me.cboxKostenart.ValueMember = "Kostenartnr"

        'Periodizitäten laden
        Me.cboxPeriodizität.Items.Clear()
        Me.cboxPeriodizität.DataSource = Me.Vertragsereignis.Periodizitäten
        Me.cboxPeriodizität.DisplayMember = "Bezeichnung"
        Me.cboxPeriodizität.ValueMember = "Periodizitaetnr"

        Me.cboxEreignistyp.Items.Clear()
        Me.cboxEreignistyp.DataSource = Me.Vertragsereignis.Ereignistypen
        Me.cboxEreignistyp.DisplayMember = "Bezeichnung"
        Me.cboxEreignistyp.ValueMember = "Ereignistypnr"

        Me.cboxKuendigungsfrist.DataSource = Me.Vertragsereignis.Kuendigungsfrist
        Me.cboxKuendigungsfrist.DisplayMember = "Bezeichnung"
        Me.cboxKuendigungsfrist.ValueMember = "Kuendigungsfristnr"
        If Me.FormReadonly Then sec.Set_Form_Readonly(Me)

        AddChanges(Me)
        Get_Data(Me.Aktuelles_Vertragsereignis)
        If Me.Neuer_Datensatz = True Then
            Me.Vertragsereignis.Neuer_Datensatz = True
            Me.Neuer_Datensatz = False
        End If

        Me.Refresh_History()
        Me.cboxEreignistyp_SelectedIndexChanged(sender, e)
        Enable_Disable_Datum()
        Me.FormDataChanged = False

    End Sub
#End Region


#Region "Buttons/Menu"

    ''' <summary>
    ''' Formular schliessen
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub TSBtnQuit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TSBtnQuit.Click
        Me.Close()
    End Sub

    ''' <summary>
    ''' Sicherungs-Button betätigt
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub TSBtnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TSBtnSave.Click
        Me.Save_Data()
        Me.txtMutiertam.Text = Me.Vertragsereignis.daMutiert_am.ToString
        Me.FormDataChanged = False
    End Sub

    ''' <summary>
    ''' Datensatz kopieren
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub TSBtnCopy_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TSBtnCopy.Click
        If Me.Check_Changes = False Then Exit Sub
        Me.Get_Data(Vertragsereignis.Create_Copy(Me.Vertragsereignis.iEreignisNr.Value))
        Me.Vertragsereignis.Neuer_Datensatz = True
    End Sub
    ''' <summary>
    ''' Neuer Datensatz erstellen
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub TSBtnNew_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TSBtnNew.Click
        If Me.Check_Changes = False Then Exit Sub
        Me.Get_Data(Me.Vertragsereignis.Add_New(Me.Aktuelles_Vertragselement))
        Me.Vertragsereignis.Neuer_Datensatz = True
    End Sub
    ''' <summary>
    ''' Aktueller Datensatz inaktivieren
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub TSBtnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TSBtnDelete.Click
        If msg.Show_MessageYesNo(250) = MsgBoxResult.Yes Then
            Me.Vertragsereignis.Delete_Ereignis(Me.Vertragsereignis.iEreignisNr.Value)
            Me.Close()
        End If
    End Sub

    ''' <summary>
    ''' Menu Beenden
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub BeendenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BeendenToolStripMenuItem.Click
        Me.TSBtnQuit_Click(sender, e)
    End Sub


#End Region

#Region "Eventhandler ChangeEreignisse"
    ''' <summary>
    ''' Allg Eventhandler für Chanage-Ereignise festlegen
    ''' </summary>
    ''' <param name="Container"></param>
    ''' <remarks></remarks>
    Private Sub AddChanges(ByVal Container As Control)
        Dim l As New List(Of Control)
        Me.GetControl(Me, "*", l)
        Dim evh As EventHandler = AddressOf ChangesMade
        For Each c As Control In l
            If TypeOf c Is TextBox Then
                Dim ctl As TextBox = c
                AddHandler ctl.TextChanged, evh
            End If
            If TypeOf c Is MaskedTextBox Then
                Dim ctl As MaskedTextBox = c
                AddHandler ctl.TextChanged, evh
            End If
            If TypeOf c Is ComboBox Then
                Dim ctl As ComboBox = c
                AddHandler ctl.SelectedValueChanged, evh
            End If
            If TypeOf c Is CheckBox Then
                Dim ctl As CheckBox = c
                AddHandler ctl.CheckedChanged, evh
            End If
        Next
    End Sub
    ''' <summary>
    ''' Envent-Handler für Change-Ereignisse
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub ChangesMade(ByVal sender As Object, ByVal e As System.EventArgs)
        Me.FormDataChanged = True
        Dim objtype As System.Type = sender.GetType
        If objtype.Name = "MaskedTextBox" Then
            Dim o As MaskedTextBox = sender
            If o.Text = "01.01.1900" Then o.Text = "  .  .    "
        End If
    End Sub

    ''' <summary>
    ''' Sucht in den Base-Controls sämtliche Controls mit dem Namen in "Key" (Wildcards * möglich) und listet
    ''' die gefundnen Controls in der Liste L zur weiteren Bearbeitung
    ''' </summary>
    ''' <param name="BaseControl">Base-Contrlo (z.B. aktuelles Formular</param>
    ''' <param name="Key">Schlüssel welcher gesucht werden soll</param>
    ''' <param name="L">Liste der gefundenen Objekte</param>
    ''' <returns>True wenn eines oder mehr Controls gefunden wurden, false wenn kein Control gefunden wurde.
    ''' </returns>
    ''' <remarks></remarks>
    Private Function GetControl(ByVal BaseControl As Control, ByVal Key As String, ByRef L As List(Of Control), Optional ByVal ReturnAtFirstElement As Boolean = False) As Boolean
        If L Is Nothing Then L = New List(Of Control)
        Dim Gut As Boolean
        Dim ReturnFlag As Boolean = False
        If Key IsNot Nothing Then Key = Key.ToLower

        If BaseControl.HasChildren = True Then
            For Each ctl As Control In BaseControl.Controls
                Gut = False
                If Key Is Nothing Then
                    Gut = True
                Else
                    If ctl.Name.Length >= Key.Length Then
                        Key = Key.ToLower
                        If Key.StartsWith("*") Then
                            If Key.Substring(1) = ctl.Name.ToLower.Substring(ctl.Name.Length - (Key.Length - 1), Key.Length - 1) Then Gut = True
                        ElseIf Key.EndsWith("*") Then
                            If Key.Substring(0, Key.Length - 1) = ctl.Name.ToLower.Substring(0, Key.Length - 1) Then Gut = True
                        Else
                            If Key = ctl.Name.ToLower Then Gut = True
                        End If
                    End If
                End If

                If Gut = True Then
                    L.Add(ctl)
                    If ReturnAtFirstElement = True Then ReturnFlag = True
                End If
                If ReturnFlag = False Then
                    Call GetControl(ctl, Key, L)
                End If
            Next
        End If

        If L.Count - 1 > -1 Then
            Return True
        Else
            Return False
        End If
    End Function

    ''' <summary>
    ''' Handelt das Change-Ereignis eines Datetimepckers und stellt das ausgewählte Datum in das entsprechende Textfeld
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub DateTimePicker_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles _
    dtPickerDatum.ValueChanged, dtPickerStart.ValueChanged, dtPickerEnde.ValueChanged
        Dim s As String
        Dim obj As DateTimePicker = sender
        s = obj.Name
        s = "txt" + s.Substring(8, s.Length - 8)
        Dim l As New List(Of Control)
        Dim txtb As MaskedTextBox
        GetControl(Me, s, l)
        For Each ctl As Control In l
            txtb = CType(ctl, MaskedTextBox)
            txtb.Text = obj.Value
        Next

    End Sub

#End Region

#Region "Daten"
    ''' <summary>
    ''' Daten ab DB laden uns ins Form befüllen
    ''' </summary>
    ''' <param name="Vertragselementnr"></param>
    ''' <remarks></remarks>
    Private Sub Get_Data(ByVal Vertragsereignisnr As Integer)
        Try
            Vertragsereignis.Get_Ereignis(Vertragsereignisnr)
            Me.Aktuelles_Vertragselement = Me.Vertragsereignis.Vertragselement.iVertragselementnr.Value
            Me.Aktuelles_Vertragsereignis = Vertragsereignisnr
            Me.txtVertragselement.Text = Me.Vertragsereignis.Vertragselement.sBezeichnung.Value
            Me.txtBezeichnung.Text = Me.Vertragsereignis.sBezeichnung.Value
            Me.cboxEreignistyp.SelectedValue = Me.Vertragsereignis.iEreignistypNr.Value

            Me.txtDatum.Text = Me.Vertragsereignis.daDatum.ToString
            Me.txtStart.Text = Me.Vertragsereignis.daStart.ToString
            Me.txtEnde.Text = Me.Vertragsereignis.daEnde.ToString
            Me.txtVorlaufzeit.Text = Me.Vertragsereignis.iVorlaufzeit.Value
            Me.txtBetrag.Text = Me.Vertragsereignis.fBetrag.Value
            Check_Betrag()
            Me.cboxKostenart.SelectedValue = Me.Vertragsereignis.iKostenartNr.Value
            Me.cboxPeriodizität.SelectedValue = Me.Vertragsereignis.iPeriodizitaetNr.Value
            Me.txtBemerkung.Text = Me.Vertragsereignis.sBeschreibung.Value
            Me.txtErstelltam.Text = Vertragsereignis.daErstellt_am.ToString
            Me.txtMutiertam.Text = Vertragsereignis.daMutiert_am.ToString
            Me.txtMutierer.Text = Vertragsereignis.iMutierer.ToString
            Me.cboxSecurityLevel.SelectedValue = Me.Vertragsereignis.iSecurityLevelNr.Value
            Me.cbInklMwSt.Checked = Me.Vertragsereignis.bInklMwSt.Value = True
            Me.cbaktiv.Checked = Me.Vertragsereignis.bAktiv.Value = True

            Me.cboxKuendigungsfrist.SelectedValue = Me.Vertragsereignis.iKuendigungsfristnr.Value
            sec.Set_Form_Security(Me)

            Me.FormDataChanged = False
        Catch ex As Exception
            For Each ctl As ToolStripButton In Me.ToolStrip1.Items
                ctl.Enabled = False
            Next
            Me.TSBtnQuit.Enabled = True
            Me.TSBtnSuche.Enabled = True
        End Try
        Me.FormDataChanged = False

    End Sub
    ''' <summary>
    ''' Daten ab Form speichern
    ''' </summary>
    ''' <remarks></remarks>
    Private Sub Save_data()
        Plausifehler = False
        If Me.dtPickerDatum.Enabled = True Then
            If Trim(Me.txtDatum.Text) = ".  ." Then
                msg.show_standardmessage(871, MsgBoxStyle.Critical)
                Me.txtDatum.Focus()
                Me.txtDatum.SelectAll()
                Plausifehler = True
            End If
        Else
            If Trim(Me.txtStart.Text) = ".  ." Then
                msg.show_standardmessage(872, MsgBoxStyle.Critical)
                Me.txtStart.Focus()
                Me.txtStart.SelectAll()
                Plausifehler = True
            End If
        End If
        If Plausifehler Then Exit Sub

        Me.Vertragsereignis.iEreignisNr = New SqlInt32(CType(Me.Aktuelles_Vertragsereignis, Int32))
        Me.Vertragsereignis.iEreignistypNr = New SqlInt32(CType(Me.cboxEreignistyp.SelectedValue, Int32))
        Me.Vertragsereignis.iVertragselementnr = New SqlInt32(CType(Me.Aktuelles_Vertragselement, Int32))
        Me.Vertragsereignis.sBezeichnung = New SqlString(CType(Me.txtBezeichnung.Text, String))
        If IsDate(Me.txtDatum.Text) Then
            Me.Vertragsereignis.daDatum = New SqlDateTime(CType(Me.txtDatum.Text, DateTime))
        Else
            Me.Vertragsereignis.daDatum = New SqlDateTime(CType(SqlDateTime.Null, DateTime))
        End If
        If IsDate(Me.txtStart.Text) Then
            Me.Vertragsereignis.daStart = New SqlDateTime(CType(Me.txtStart.Text, DateTime))
        Else
            Me.Vertragsereignis.daStart = New SqlDateTime(CType(SqlDateTime.Null, DateTime))
        End If
        If IsDate(Me.txtEnde.Text) Then
            Me.Vertragsereignis.daEnde = New SqlDateTime(CType(Me.txtEnde.Text, DateTime))
        Else
            Me.Vertragsereignis.daEnde = New SqlDateTime(CType(SqlDateTime.Null, DateTime))
        End If
        If Me.txtVorlaufzeit.Text = "" Then
            Me.Vertragsereignis.iVorlaufzeit = New SqlInt32(CType(0, Int32))
        Else
            Me.Vertragsereignis.iVorlaufzeit = New SqlInt32(CType(Me.txtVorlaufzeit.Text, Int32))
        End If
        If Me.txtBetrag.Text = "" Then
            Me.Vertragsereignis.fBetrag = New SqlDouble(CType(0, Double))
        Else
            Me.Vertragsereignis.fBetrag = New SqlDouble(CType(Me.txtBetrag.Text, Double))
        End If
        Me.Vertragsereignis.iPeriodizitaetNr = New SqlInt32(CType(Me.cboxPeriodizität.SelectedValue, Int32))


        If Me.cboxKostenart.SelectedValue Is Nothing Then
            Me.Vertragsereignis.iKostenartNr = New SqlInt32(CType(-1, Int32))
        Else

            Me.Vertragsereignis.iKostenartNr = New SqlInt32(CType(Me.cboxKostenart.SelectedValue, Int32))
        End If

        Me.Vertragsereignis.iKuendigungsfristnr = New SqlInt32(CType(Me.cboxKuendigungsfrist.SelectedValue, Int32))

        Me.Vertragsereignis.bInklMwSt = New SqlBoolean(CType(Me.cbInklMwSt.Checked = True, Boolean))
        Me.Vertragsereignis.bAktiv = New SqlBoolean(CType(Me.cbaktiv.Checked = True, Boolean))
        Me.Vertragsereignis.sBeschreibung = New SqlString(CType(Me.txtBemerkung.Text, String))
        Me.Vertragsereignis.iSecurityLevelNr = New SqlInt32(CType(Me.cboxSecurityLevel.SelectedValue, Int32))
        Me.Vertragsereignis.Save_Data()
        Me.FormDataChanged = False
    End Sub
#End Region

#Region "Security"
    ''' <summary>
    ''' Laden der Securitylevel-Daten in die Combobox
    ''' </summary>
    ''' <remarks></remarks>
    Private Sub Load_Securitylevel()
        Dim seclevel As New TKB.VV.DB.clsSecurityLevel
        Dim secleveldata As New DataTable

        seclevel.cpMainConnectionProvider = Globals.conn
        Globals.conn.OpenConnection()
        secleveldata = seclevel.SelectAll
        Globals.conn.CloseConnection(True)

        Me.cboxSecurityLevel.DataSource = secleveldata
        Me.cboxSecurityLevel.DisplayMember = "Bezeichnung"
        Me.cboxSecurityLevel.ValueMember = "SecurityLevelNr"

        seclevel.Dispose()
    End Sub
#End Region


    ''' <summary>
    ''' Validierung Betragsfeld
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub txtBetrag_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles txtBetrag.Validating
        If Not Check_Betrag() Then e.Cancel = True
    End Sub
    ''' <summary>
    ''' Betragswert prüfen
    ''' </summary>
    ''' <remarks></remarks>
    Private Function Check_Betrag() As Boolean
        If Trim(Me.txtBetrag.Text) = "" Then
            Me.txtBetrag.Text = "0.00"
            Return True
        End If

        If Not IsNumeric(Me.txtBetrag.Text) Then
            msg.show_standardmessage(600, MsgBoxStyle.Critical)
            Return False
        End If

        Dim i As Integer
        i = Me.txtBetrag.Text.IndexOf(".")

        If i = -1 Then
            Me.txtBetrag.Text = Me.txtBetrag.Text + ".00"
            Exit Function
        End If

        Dim s = Me.txtBetrag.Text.Substring(i + 1)
        If Len(s) = 0 Then
            Me.txtBetrag.Text = Me.txtBetrag.Text + "00"
            Exit Function
        End If
        If Len(s) = 1 Then
            Me.txtBetrag.Text = Me.txtBetrag.Text + "0"
        End If
        If Len(s) > 2 Then
            msg.show_standardmessage(600, MsgBoxStyle.Critical)
            Return False
        End If
        Return True

    End Function

    ''' <summary>
    ''' Prüfung, ob es sich um einen numerischen Wert handelt
    ''' </summary>
    ''' <param name="str"></param>
    ''' <returns></returns>
    ''' <remarks></remarks>
    Private Function IsNumeric(ByVal str As String)
        Return New Regex("\d+").Match(str).Success
    End Function


    '    Public Function IsNumeric(ByVal str As String) As Boolean
    'Dim r As Regex = New Regex("\d+")
    'Dim m As Match = r.Match(Str)
    '    If (m.Success) Then
    '        Return True
    '    End If
    '    Return False
    '' End Function
    'If Not (IsNumeric(TextBox4.Text)) Then



    Private Sub btnVertragselementSuche_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnVertragselementSuche.Click
        Dim vertragselement As New TKB.VV.Vertrag.clsVertragselement
        Dim i As Integer = 0
        If vertragselement.Suchen(i) Then
            Me.Aktuelles_Vertragselement = i
            Me.txtVertragselement.Text = vertragselement.Get_Vertragselementbezeichnung(i)
            Me.FormDataChanged = True
        End If
        vertragselement.dispose()
    End Sub

#Region "History"
        ''' <summary>
        ''' History
        ''' </summary>
        ''' <remarks></remarks>
    Private Sub Refresh_History()
        Try
            If Check_Changes() = False Then Exit Sub
        Catch ex As Exception
        End Try
        Dim filtertext As String = "none"
        Try
            filtertext = Me.C1History.Columns("Aktiv").FilterText
        Catch ex As Exception
        End Try

        Dim bm As Integer = 0
        bm = Me.C1History.Bookmark

        Me.C1History.Enabled = False
        Me.Vertragsereignis.Get_History(Me.C1History)
        Me.SpaltenTitel.Spaltentitel_aktualisieren(Me.C1History, "History", Me.Vertragsereignis.History.Tabledata)
        If filtertext <> "none" Then Me.C1History.Columns("Aktiv").FilterText = filtertext
        sec.Set_Form_Security(Me)

        Try
            Me.C1History.Bookmark = bm
        Catch ex As Exception
        End Try
        Me.C1History.Enabled = True
    End Sub

#End Region


    Private Sub cboxPeriodizität_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboxPeriodizität.SelectedIndexChanged
        Enable_Disable_Datum()
    End Sub

    Private Sub Enable_Disable_Datum()
        Try
            If LCase(Me.cboxPeriodizität.Text) = "einmalig" Then
                Me.dtPickerStart.Enabled = False
                Me.dtPickerEnde.Enabled = False
                Me.txtStart.Enabled = False
                Me.txtEnde.Enabled = False
                Me.txtStart.Text = "  .  .    "
                Me.txtEnde.Text = "  .  .    "
                Me.dtPickerDatum.Enabled = True
                Me.txtDatum.Enabled = True
            Else
                Me.dtPickerStart.Enabled = True
                Me.dtPickerEnde.Enabled = True
                Me.txtStart.Enabled = True
                Me.txtEnde.Enabled = True
                Me.txtDatum.Text = "  .  .    "
                Me.dtPickerDatum.Enabled = False
                Me.txtDatum.Enabled = False
            End If
        Catch ex As Exception
        End Try

    End Sub

    Private Sub cboxEreignistyp_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboxEreignistyp.SelectedIndexChanged
        Try
            If Me.Vertragsereignis.Check_Zahlungsdaten(Me.cboxEreignistyp.SelectedValue) Then
                Me.txtBetrag.Enabled = True
                Me.cbInklMwSt.Enabled = True
                Me.cboxKostenart.Enabled = True
                Me.cboxKuendigungsfrist.Enabled = False
                Me.txtVorlaufzeit.Text = ""
                Me.txtVorlaufzeit.Enabled = False
            Else
                If Me.Vertragsereignis.Check_Kuendigungsdaten(Me.cboxEreignistyp.SelectedValue) = True Then
                    Me.cboxKuendigungsfrist.Enabled = True
                    Me.txtBetrag.Enabled = False
                    Me.cbInklMwSt.Enabled = False
                    Me.cboxKostenart.Enabled = False
                    Me.cboxKostenart.SelectedIndex = -1
                    Me.cboxKostenart.Text = ""
                    Me.txtVorlaufzeit.Enabled = True
                Else
                    Me.txtVorlaufzeit.Enabled = True
                    Me.cboxKuendigungsfrist.Enabled = False
                    Me.txtBetrag.Enabled = False
                    Me.cbInklMwSt.Enabled = False
                    Me.cboxKostenart.Enabled = False
                End If
            End If
        Catch
        End Try
    End Sub


    Private Sub DateTimePicker_leave(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles _
     dtPickerDatum.Leave, dtPickerStart.Leave, dtPickerEnde.Leave
        Dim s As String
        Dim obj As DateTimePicker = sender
        s = obj.Name
        Check_Datum(Me.Vertragsereignis.iEreignisNr.Value, obj.Value, obj.Name)
    End Sub

    Private Sub txtVertragsbegin_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles _
     txtDatum.Leave, txtStart.Leave, txtEnde.Leave
        Dim obj As MaskedTextBox = sender
        Check_Datum(Me.Vertragsereignis.iEreignisNr.Value, obj.Text, obj.Name)
    End Sub

    Private Sub Check_Datum(ByVal Vertragsereignisnr As Integer, ByVal Datum As String, ByVal element As String)
        Dim dt As New DataTable
        If Not IsDate(Datum) Then Datum = "01.01.1900"
        dt = Me.Vertragsereignis.Datumscheck(Vertragsereignisnr, Datum, element)
        Dim titel As String = "Datumsprüfung Vertragsereignis: " + Me.Vertragsereignis.sBezeichnung.ToString

        Try
            Dim formopen As Boolean = False
            Dim dtpform As frmDatumspruefung
            Dim p As Form = Me.ParentForm
            For Each windows As Form In p.MdiChildren
                If windows.Name = "frmDatumspruefung" Then
                    formopen = True
                    dtpform = windows
                End If
            Next
            If formopen = True And dt.Rows.Count > 0 Then
                dtpform.C1Pruefresultate.DataSource = dt
                dtpform.C1Pruefresultate.DataMember = dt.TableName
                dtpform.Text = titel
                Me.SpaltenTitel.Spaltentitel_aktualisieren(dtpform.C1Pruefresultate, "Datumspruefung", dt)
                dtpform.TopMost = True
                dtpform.BringToFront()
                dtpform.Show()

                Exit Sub
            End If
            If dt.Rows.Count > 0 Then
                Dim f As New frmDatumspruefung
                f.C1Pruefresultate.DataSource = dt
                f.C1Pruefresultate.DataMember = dt.TableName
                f.Text = titel
                f.MdiParent = Me.MdiParent
                Me.SpaltenTitel.Spaltentitel_aktualisieren(f.C1Pruefresultate, "Datumspruefung", dt)

                f.Show()
            End If
            'dt.Dispose()

        Catch ex As Exception
        End Try

    End Sub

End Class