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' background colors and borders in Excel
' taken from Example01.vb
Private Sub ExampleMain01()

  ' start excel and turn off msg boxes
  Dim excelApplication As New Excel.Application()
  excelApplication.DisplayAlerts = False

  ' add a new workbook
  Dim workBook As Excel.Workbook = excelApplication.Workbooks.Add()
  Dim workSheet As Excel.Worksheet = workBook.Worksheets(1)
  ' draw back color and perform the BorderAround method
  workSheet.Range("$B2:$B5").Interior.Color = ToDouble(Color.DarkGreen)
  workSheet.Range("$B2:$B5").BorderAround(XlLineStyle.xlContinuous, _
XlBorderWeight.xlMedium, XlColorIndex.xlColorIndexAutomatic) ' draw back color and border the range explicitly workSheet.Range("$D2:$D5").Interior.Color = ToDouble(Color.DarkGreen) workSheet.Range("$D2:$D5").Borders(XlBordersIndex.xlInsideHorizontal).LineStyle = _
XlLineStyle.xlDouble workSheet.Range("$D2:$D5").Borders(XlBordersIndex.xlInsideHorizontal).Weight = 4 workSheet.Range("$D2:$D5").Borders(XlBordersIndex.xlInsideHorizontal).Color = _
ToDouble(Color.Black) ' save the book Dim fileExtension As String = GetDefaultExtension(excelApplication) Dim workbookFile As String = String.Format("{0}\Example01{1}", _
Application.StartupPath, fileExtension)
workBook.SaveAs(workbookFile, Missing.Value, Missing.Value, Missing.Value, _
Missing.Value, Missing.Value, XlSaveAsAccessMode.xlExclusive) ' close excel and dispose reference excelApplication.Quit() excelApplication.Dispose() Dim fDialog As New FinishDialog("Workbook saved.", workbookFile) fDialog.ShowDialog(Me) End Sub ''' <summary> ''' Translate a color to double ''' </summary> ''' <param name="color">expression to convert</param> ''' <returns>color</returns> ''' <remarks></remarks> Private Function ToDouble(ByVal color As System.Drawing.Color) As Double Dim returnValue As UInteger = color.B returnValue = returnValue << 8 returnValue += color.G returnValue = returnValue << 8 returnValue += color.R Return returnValue End Function ''' <summary> ''' returns the valid file extension for the instance. for example ".xls" or ".xlsx" ''' </summary> ''' <param name="application">the instance</param> ''' <returns>the extension</returns> ''' <remarks></remarks> Private Function GetDefaultExtension(ByVal app As Excel.Application) As String Dim version As Double=Convert.ToDouble(app.Version, CultureInfo.InvariantCulture) If (version >= 12.0) Then Return ".xlsx" Else Return ".xls" End If End Function

Last edited May 14, 2012 at 4:28 AM by SebastianDotNet, version 16


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