Imports System.Data.SqlClient
Imports VERAG_PROG_ALLGEMEIN
Public Class cBinding
    Public bindingDataAdapter As New SqlDataAdapter
    Public WithEvents bindingdataTable As New DataTable
    Public bindingdataSet As New DataSet
    Public WithEvents bindingSource As New BindingSource
    Dim connection As SqlConnection

    Sub New(Optional conn As String = "FMZOLL")

        Select Case conn
            Case "AVISO" : connection = cDatenbankAVISO.GetNewOpenConnection()
            Case "FMZOLL" : connection = cDatenbankAVISO.GetNewOpenConnectionFMZOLL()
        End Select

    End Sub



    Public Sub initBinding(sql As String, table As String)
        Try

            bindingSource.CancelEdit()
            bindingSource.ResetBindings(False)
            bindingSource = New BindingSource
            bindingdataTable.Clear()
            bindingdataTable = New DataTable
            bindingdataSet.Clear()

            Try
                Me.bindingDataAdapter = New SqlDataAdapter(sql, connection)
            Catch ex As SqlException
                MessageBox.Show("Der Connection-String kann nicht verarbeitet werden. Wenden Sie sich an den Programmbetreuer.")
            End Try
            Me.bindingDataAdapter.FillSchema(bindingdataSet, SchemaType.Source, table)
            Me.bindingDataAdapter.Fill(bindingdataSet, table)
            Me.bindingdataTable = Me.bindingdataSet.Tables(table)
            Me.bindingSource.DataSource = Me.bindingdataTable

            Me.bindingdataTable.Locale = System.Globalization.CultureInfo.InvariantCulture
        Catch ex As Exception
            MsgBox(ex.Message)
        End Try
    End Sub

    Sub setARITHABORTOn()
        Try
           Using cmd As New SqlCommand("SET ARITHABORT ON", connection)
                cmd.ExecuteNonQuery()
            End Using
        Catch ex As Exception
            MsgBox("Fehler in setARITHABORTOn: " & ex.Message)
        End Try
    End Sub


   

    Public Function updateBinding(Optional tablename As String = "") As Boolean
        If tablename = "" Then tablename = bindingdataTable.TableName
        Try
            bindingSource.EndEdit() 'Beendet die Bearbeitung
            Dim modrows As Integer = 0
            For Each row As DataRow In bindingdataTable.Rows
                If row.RowState = DataRowState.Modified Then

                    modrows += 1
                    Exit For
                End If
            Next
            Dim builder As New SqlCommandBuilder(bindingDataAdapter)

            If Not modrows = bindingDataAdapter.Update(bindingdataSet, tablename) Then
                '  MsgBox(tablename & ": Es ist ein SQL-Fehler beim Updaten der Daten aufgetreten!")
            End If

            Return True
        Catch ex As Exception
            MsgBox("Es ist ein SQL-Fehler beim Updaten der Daten aufgetreten:" & vbNewLine & vbNewLine & ex.Message & vbNewLine & vbNewLine & "Die Werte werden zurückgesetzt!", MsgBoxStyle.OkCancel, "Datenbank-Fehler")
            Me.bindingSource.ResetBindings(False)
        End Try
        Return False
    End Function


    Public Function updateBinding2(Optional tablename As String = "", Optional ContinueUpdateOnError As Boolean = False) As Boolean
        If tablename = "" Then tablename = bindingdataTable.TableName

        Try
            bindingSource.EndEdit() 'Beendet die Bearbeitung
            Dim modrows As Integer = 0
            For Each row As DataRow In bindingdataTable.Rows
                If row.RowState = DataRowState.Modified Then
                    ' MsgBox(": Es ist ei")
                    modrows += 1
                    Exit For
                End If
            Next
            Dim builder As New SqlCommandBuilder(bindingDataAdapter)
            bindingDataAdapter.ContinueUpdateOnError = False
            '  bindingDataAdapter.FillLoadOption = LoadOption.OverwriteChanges
            ' MsgBox(bindingDataAdapter.Update(bindingdataSet, tablename))
            If Not modrows = bindingDataAdapter.Update(bindingdataSet, tablename) Then
                'MsgBox(tablename & ": Es ist ein SQL-Fehler beim Updaten der Daten aufgetreten!")
            End If
            Me.bindingdataSet.AcceptChanges()
            Return True
        Catch ex As Exception
            MsgBox("Es ist ein SQL-Fehler beim Updaten der Daten aufgetreten:" & vbNewLine & vbNewLine & ex.Message & vbNewLine & vbNewLine & "Die Werte werden zurückgesetzt!", MsgBoxStyle.OkCancel, "Datenbank-Fehler")

            Me.bindingSource.ResumeBinding()
        End Try
        Return False
    End Function

    Sub binddata(o As Object, bindingParam As String, bindingSource As BindingSource, dataName As String, bindingNullValue As String)
        o.DataBindings.Clear()
        
        o.DataBindings.Add(New Binding(bindingParam, bindingSource, dataName, True, DataSourceUpdateMode.OnPropertyChanged, bindingNullValue))


    End Sub
    Sub binddata(o As Object, bindingParam As String, bindingSource As BindingSource, dataName As String)
        o.DataBindings.Clear()
        o.DataBindings.Add(New Binding(bindingParam, bindingSource, dataName, True, DataSourceUpdateMode.OnPropertyChanged))
    End Sub


End Class