private void sheetComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
ExcelBibliographicReader read = new ExcelBibliographicReader();
try
{
// Make sure there is a filename and a sheet name
if ((fileTextBox.Text.Length > 0) && (sheetComboBox.SelectedIndex >= 0))
{
read.Sheet = sheetComboBox.Text;
read.Filename = fileTextBox.Text;
// Try reading data from the selected Excel Worksheet
if (!read.Check_Source())
{
MessageBox.Show("Unable to read the source sheet ");
fileTextBox.Text = String.Empty;
filename = String.Empty;
sheetComboBox.Items.Clear();
sheetComboBox.Text = String.Empty;
sheetComboBox.Hide();
sheetLabel.Hide();
executeButton.Button_Enabled = false;
}
else
{
rawDataTbl = read.excelData;
columnname_to_input.Clear();
foreach (DataColumn thisColumn in rawDataTbl.Columns)
{
columnname_to_input[thisColumn.ColumnName.ToUpper().Trim()] = thisColumn.ColumnName.Trim();
thisColumn.ColumnName = thisColumn.ColumnName.ToUpper().Trim().Replace(" ","");
}
if (!Transform_Data())
{
fileTextBox.Text = String.Empty;
filename = String.Empty;
sheetComboBox.Items.Clear();
sheetComboBox.Text = String.Empty;
sheetComboBox.Hide();
sheetLabel.Hide();
executeButton.Button_Enabled = false;
}
else
{
// Check to see if multiple bibids loaded
string check_bib = transformedDataTbl.Rows[0][0].ToString().ToUpper();
bool multiple_bibs_in_table = transformedDataTbl.Rows.Cast<DataRow>().Any(thisRow => thisRow[0].ToString().ToUpper() != check_bib);
btnShowData.Location = new Point(239, 66);
btnShowData.Show();
if ((bibidLabel.Visible) || ( multiple_bibs_in_table ))
executeButton.Button_Enabled = true;
}
}
// Close the reader
read.Close();
}
}
catch (Exception ex)
{
ErrorMessageBox.Show(ex.Message, "Unexpected Error", ex);
fileTextBox.Text = String.Empty;
filename = String.Empty;
sheetComboBox.Items.Clear();
sheetComboBox.Text = String.Empty;
sheetComboBox.Hide();
sheetLabel.Hide();
executeButton.Button_Enabled = false;
}
finally
{
// Close the reader
read.Close();
}
}
private void Browse_Source()
{
fileTextBox.Text = String.Empty;
filename = String.Empty;
sheetComboBox.Items.Clear();
sheetComboBox.Text = String.Empty;
sheetComboBox.Hide();
sheetLabel.Hide();
btnShowData.Hide();
executeButton.Button_Enabled = false;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
// Write the filename to the text box first
fileTextBox.Text = openFileDialog1.FileName;
filename = openFileDialog1.FileName;
// Determine the filetype
FileInfo fileInfo = new FileInfo(filename);
string extension = fileInfo.Extension.ToUpper();
if ((extension == ".XLS") || (extension == ".XLSX"))
{
ExcelBibliographicReader read = new ExcelBibliographicReader();
try
{
// Try getting the worksheet names from the selected workbook
// Get the sheet names
read = new ExcelBibliographicReader();
List<string> tables = read.GetExcelSheetNames(openFileDialog1.FileName);
if (tables == null)
{
MessageBox.Show("Unable to read the source workbook. ");
fileTextBox.Text = String.Empty;
filename = String.Empty;
}
else
{
// Populate the combo box
foreach (string thisSheetName in tables)
sheetComboBox.Items.Add(thisSheetName);
sheetComboBox.Show();
sheetLabel.Show();
}
}
catch (Exception ex)
{
ErrorMessageBox.Show(ex.Message, "Unexpected Error", ex);
fileTextBox.Text = String.Empty;
filename = String.Empty;
}
finally
{
// Close the reader
read.Close();
}
return;
}
// Check with CSV or TXT files
if ((extension == ".CSV") || (extension == ".TXT"))
{
// Create the splitter to use
string splitter = ",";
if (extension == ".TXT")
splitter = ",\t";
char[] splitter_chars = splitter.ToCharArray();
StreamReader text_reader = new StreamReader(filename);
try
{
string line = text_reader.ReadLine();
if (line != null)
{
string[] split = line.Split(splitter_chars);
int columns = 0;
rawDataTbl = new DataTable();
columnname_to_input.Clear();
foreach (string topRowSplit in split)
{
if (topRowSplit.Length > 0)
{
columns++;
rawDataTbl.Columns.Add(topRowSplit.ToUpper().Trim().Replace(" ", ""));
columnname_to_input[topRowSplit.ToUpper().Trim().Replace(" ", "")] =
topRowSplit.Trim();
}
else
{
break;
}
}
line = text_reader.ReadLine();
while (line != null)
{
split = line.Split(splitter_chars);
DataRow newRow = rawDataTbl.NewRow();
for (int i = 0; (i < columns) && (i < split.Length); i++)
{
newRow[i] = split[i];
}
rawDataTbl.Rows.Add(newRow);
line = text_reader.ReadLine();
}
}
btnShowData.Location = new Point(73,67);
btnShowData.Show();
if (bibidLabel.Visible)
executeButton.Button_Enabled = true;
}
catch
{
MessageBox.Show("Input text file is in improper format");
fileTextBox.Text = String.Empty;
filename = String.Empty;
}
text_reader.Close();
return;
}
// Type was invalid so just return
fileTextBox.Text = String.Empty;
filename = String.Empty;
}
}
