Public Class frmStructureNodeConfig
    Dim DT_ENTITIES As DataTable
    Private Shared _Instance As frmStructureNodeConfig = Nothing
    Private setimageNull As Boolean = False
    Public Shared Function Instance() As frmStructureNodeConfig
        If _Instance Is Nothing OrElse _Instance.IsDisposed = True Then
            _Instance = New frmStructureNodeConfig
        End If
        _Instance.BringToFront()
        Return _Instance
    End Function
    Private Sub TBPMO_STRUCTURE_NODES_CONFIGURATIONBindingNavigatorSaveItem_Click(sender As Object, e As EventArgs) Handles TBPMO_STRUCTURE_NODES_CONFIGURATIONBindingNavigatorSaveItem.Click
        Save_Config()

    End Sub
    Private Function Save_Config()
        Try
            Me.TBPMO_STRUCTURE_NODES_CONFIGURATIONBindingSource.EndEdit()
            If DD_DMSDataSet.TBPMO_STRUCTURE_NODES_CONFIGURATION.GetChanges Is Nothing = False Then
                Me.CHANGED_WHOTextBox.Text = Environment.UserName
                TBPMO_STRUCTURE_NODES_CONFIGURATIONTableAdapter.Update(DD_DMSDataSet.TBPMO_STRUCTURE_NODES_CONFIGURATION)
                lblSave.Visible = True
            Else
                lblSave.Visible = False
            End If
            Return True
        Catch ex As Exception
            MsgBox("Error in Saving Configuration:" & vbNewLine & ex.Message)
            Return False
        End Try
    End Function
    Private Sub frmStructureNodeConfig_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Try
            Me.TBWH_ENTITYTableAdapter.Connection.ConnectionString = MyConnectionString
            Me.TBWH_ENTITYTableAdapter.Fill(Me.DD_DMSDataSet.TBWH_ENTITY, USER_LANGUAGE)
            Me.TBPMO_STRUCTURE_NODES_CONFIGURATIONTableAdapter.Connection.ConnectionString = MyConnectionString
            Me.TBPMO_STRUCTURE_NODES_CONFIGURATIONTableAdapter.Fill(Me.DD_DMSDataSet.TBPMO_STRUCTURE_NODES_CONFIGURATION)

        Catch ex As Exception
            MsgBox("Error in Loading Configuration:" & vbNewLine & ex.Message)
        End Try
    End Sub

    Private Sub TBPMO_STRUCTURE_NODES_CONFIGURATIONBindingSource_AddingNew(sender As Object, e As System.ComponentModel.AddingNewEventArgs) Handles TBPMO_STRUCTURE_NODES_CONFIGURATIONBindingSource.AddingNew
        DD_DMSDataSet.TBPMO_STRUCTURE_NODES_CONFIGURATION.ADDED_WHOColumn.DefaultValue = Environment.UserName
    End Sub

    Private Sub btnSelectBackground_Click(sender As Object, e As EventArgs) Handles btnSelectBackground.Click
        Try
            OpenFileDialog1.Filter = "PNG Bilder|*.png"
            If OpenFileDialog1.ShowDialog() = Windows.Forms.DialogResult.OK Then
                Dim path As String = OpenFileDialog1.FileName
                pbBackground.ImageLocation = path
                If Save_Config() = True Then
                    ' Hintergrund speichern
                    Dim image As Bitmap = Nothing
                    Dim bimage() As Byte = Nothing

                    If pbBackground.ImageLocation IsNot Nothing Then
                        image = CType(Drawing.Image.FromFile(pbBackground.ImageLocation, True), Bitmap)
                        bimage = BitmapToByteArray(image)
                        Dim sql As String = String.Format("UPDATE TBPMO_STRUCTURE_NODES_CONFIGURATION SET NODE_IMAGE = @Image WHERE GUID = {0}", Me.GUIDTextBox.Text)
                        Dim conn As New SqlClient.SqlConnection(MyConnectionString)
                        Dim cmd As New SqlClient.SqlCommand(sql, conn)
                        cmd.Parameters.Add("@Image", SqlDbType.VarBinary).Value = bimage
                        conn.Open()
                        cmd.ExecuteNonQuery()
                        conn.Close()
                    End If
                End If
            End If
        Catch ex As Exception
            MsgBox("Error in Setting NodeImage:" & vbNewLine & ex.Message)
        End Try

    End Sub

    Private Sub btnResetBackground_Click(sender As Object, e As EventArgs) Handles btnResetBackground.Click
        Try
            Me.setimageNull = True
            pbBackground.ImageLocation = Nothing
            pbBackground.Image = Nothing
            Dim sql As String = String.Format("UPDATE TBPMO_STRUCTURE_NODES_CONFIGURATION SET NODE_IMAGE = NULL WHERE GUID = {0}", Me.GUIDTextBox.Text)
            If ClassDatabase.Execute_non_Query(sql) = True Then
                setimageNull = False
            End If
        Catch ex As Exception
            MsgBox("Error in Deleting NodeImage:" & vbNewLine & ex.Message)
        End Try
      
    End Sub

    Private Sub TBPMO_STRUCTURE_NODES_CONFIGURATIONBindingSource_CurrentChanged(sender As Object, e As EventArgs) Handles TBPMO_STRUCTURE_NODES_CONFIGURATIONBindingSource.CurrentChanged
        Load_image()
    End Sub
    Sub Load_Image()
        If GUIDTextBox.Text <> "" Then
            Try
                pbBackground.ImageLocation = Nothing
                pbBackground.Image = Nothing
                Dim sql = "SELECT NODE_IMAGE FROM TBPMO_STRUCTURE_NODES_CONFIGURATION WHERE GUID = " & GUIDTextBox.Text
                Dim img = ClassDatabase.Execute_Scalar(sql)
                ' Hintergrundbild unwandeln und anzeigen
                If Not IsDBNull(img) Then
                    Dim bimage() As Byte = img
                    Dim image = ByteArrayToBitmap(bimage)
                    Me.pbBackground.Image = image
                End If
            Catch ex As Exception
                MsgBox("Error in Getting NodeImage:" & vbNewLine & ex.Message)
            End Try
        End If
    End Sub

    Private Sub frmStructureNodeConfig_Shown(sender As Object, e As EventArgs) Handles Me.Shown
        Load_Image()
    End Sub
End Class