Validate Cells with Dates - VB.NET
Spreadsheet SDK sample in VB.NET demonstrating ‘Validate Cells with Dates’
Module1.vb
Imports Bytescout.Spreadsheet
Imports System.IO
Module Module1
Sub Main()
' in this sample we scan cells with ages data for people
' then mark all dates where age is between 10 and 19 years and mark these cells with red color
' Create new Spreadsheet
Dim document As New Spreadsheet()
document.LoadFromFile("Data.xls")
' Get worksheet by name
Dim worksheet As Worksheet = document.Workbook.Worksheets.ByName("Sample")
' Years range
Dim RangeMin As Integer = 10
Dim RangeMax As Integer = 19
' Minimum age
Dim YearMin As DateTime = DateTime.Now
' Maximum age
Dim YearMax As DateTime = DateTime.Now
' Minimum year
YearMax = YearMax.AddYears(-RangeMin)
' Maximum year
YearMin = YearMin.AddYears(-RangeMax)
' Check dates
For i As Integer = 1 To 7
' Set current cell
Dim currentCell As Cell = worksheet.Cell(i, 1)
Dim dateBirth As DateTime = currentCell.ValueAsDateTime
' Check current cell
If dateBirth < YearMin Or dateBirth > YearMax Then
' Set fill pattern
currentCell.FillPattern = Bytescout.Spreadsheet.Constants.PatternStyle.Solid
' Markup wrong cell by red color
currentCell.FillPatternForeColor = System.Drawing.Color.Red
End If
' Set cell format
currentCell.NumberFormatString = "dd.mm.yyyy"
Next
' remove output file if already exists
If File.Exists("Output.xls") Then
File.Delete("Output.xls")
End If
' Save document
document.SaveAs("Output.xls")
' Close Spreadsheet
document.Close()
' open in default spreadsheets viewer/editor
Process.Start("Output.xls")
End Sub
End Module
Resources.Designer.vb
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