public static SnData LoadFromXlsx(string filename)
{
var snData = new SnData();
snData.Rows = new List <string[]>();
var workbook = new XLWorkbook(filename);
IXLWorksheet worksheet = workbook.Worksheets.First();
int i = 0;
foreach (IXLRow row in worksheet.Rows())
{
if (i == 0)
{
var header = new List <string>();
foreach (IXLCell cell in row.Cells())
{
header.Add(cell.Value.ToString());
}
snData.HeaderRow = header.ToArray();
if (snData.HeaderRow.Length == 0 || snData.HeaderRow[0] != SerialColumnName)
{
throw new SerialColumnException();
}
}
else
{
var values = new List <string>();
foreach (IXLCell cell in row.Cells())
{
values.Add(cell.Value.ToString());
}
if (values.Count() >= 1 && values[0].Trim() != string.Empty)
{
if (values.Count() != snData.HeaderRow.Length)
{
throw new InconsistentException();
}
if (snData.Rows.Select(r => r[0]).Where(v => v == values[0]).Count() > 0)
{
throw new DuplicateSerialException(values[0]);
}
snData.Rows.Add(values.ToArray());
}
}
i++;
}
if (snData.Rows.Count == 0)
{
throw new EmptyException();
}
return(snData);
}
private void BrowseBtn_Click(object sender, RoutedEventArgs e)
{
RowsNumberLabel.Content = "...";
ReserveBtn.IsEnabled = false;
FillSignBtn.IsEnabled = false;
var dlg = new OpenFileDialog();
dlg.CheckFileExists = true;
dlg.Filter = "Excel files|*.xlsx|CSV files|*.csv";
dlg.AddExtension = true;
dlg.DefaultExt = "xlsx";
dlg.ValidateNames = true;
if (dlg.ShowDialog() != null)
{
if (!string.IsNullOrEmpty(dlg.FileName))
{
try {
if (dlg.FileName.EndsWith(".xlsx"))
{
this.snData = SnData.LoadFromXlsx(dlg.FileName);
}
else
{
this.snData = SnData.LoadFromCsv(dlg.FileName);
}
RowsNumberLabel.Content = this.snData.Rows.Count;
StatusTextBlock.Text = string.Empty;
ReserveBtn.IsEnabled = true;
FillSignBtn.IsEnabled = true;
}
catch (SnData.EmptyException) {
StatusTextBlock.Text = "File is empty or header row missing";
StatusTextBlock.Foreground = this.errorColor;
}
catch (SnData.InconsistentException) {
StatusTextBlock.Text = "Number of values in a data row does not correspond to the header row";
StatusTextBlock.Foreground = this.errorColor;
}
catch (SnData.SerialColumnException) {
StatusTextBlock.Text = SnData.SerialColumnName + " column header missing";
StatusTextBlock.Foreground = this.errorColor;
}
catch (SnData.DuplicateSerialException ex) {
StatusTextBlock.Text = "Duplicate serial number in the file: " + ex.Message;
StatusTextBlock.Foreground = this.errorColor;
}
CsvFileText.Text = dlg.FileName;
}
}
}
public static SnData LoadFromCsv(string filename)
{
var snData = new SnData();
using (var reader = new StreamReader(File.OpenRead(filename))) {
string line = reader.ReadLine();
if (reader.EndOfStream)
{
throw new EmptyException();
}
snData.HeaderRow = line.Split(separator);
if (snData.HeaderRow.Length == 0 || snData.HeaderRow[0] != SerialColumnName)
{
throw new SerialColumnException();
}
snData.Rows = new List <string[]>();
while (!reader.EndOfStream)
{
line = reader.ReadLine();
if (line.Trim() != string.Empty)
{
string[] values = line.Split(separator);
if (values.Length != snData.HeaderRow.Length)
{
throw new InconsistentException();
}
if (snData.Rows.Select(r => r[0]).Where(v => v == values[0]).Count() > 0)
{
throw new DuplicateSerialException(values[0]);
}
snData.Rows.Add(values);
}
}
}
return(snData);
}
