private void bgwValidate_DoWork(object sender, DoWorkEventArgs e)
{
//Do the validation here
DateTime begin = DateTime.Now;
try
{
excelApp = new Application();
List <String> scodes = new List <string>();
int rowCount = 0, columnCount = 0, i, j = 1;
Workbook courseWorkbook = excelApp.Workbooks.Open(fileName, 0, true, 5, "", "", true, XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
Worksheet courseWorksheet;
Range courseWorksheetRange;
isValid = true;
tempProcessLog = ln + "Reading worksheet..." + ln + "Total sheets : " + courseWorkbook.Sheets.Count;
foreach (Worksheet cws in courseWorkbook.Sheets)
{
if (!Medatabase.isPresentLike("course_master", "course_code", cws.Name))
{
tempProcessLog += ln + "sheet with name \"" + cws.Name + "\" course code is not present in database";
isValid = false;
invalidRows++;
}
else
{
tempProcessLog += ln + "======== reading sheet " + cws.Name + "========" + ln;
courseWorksheet = cws;
courseWorksheetRange = courseWorksheet.UsedRange;
rowCount = courseWorksheetRange.Rows.Count;
columnCount = courseWorksheetRange.Columns.Count;
tempProcessLog += ln + "Rows " + rowCount + " | Columns " + columnCount + ln;
if (rowCount <= 1)
{
tempProcessLog += ln + "in sheet \"" + cws.Name + "\" There are no records to validate...";
isValid = false;
continue; //Move to next sheet
}
if (columnCount > 5 || columnCount < 5)
{
tempProcessLog += ln + "in sheet \"" + cws.Name + "\" Expecting columns to be 5, " + columnCount + " is present." + ln + "This excelsheet is not meeting the desired format.";
isValid = false;
continue; //Move to next sheet
}
tempProcessLog += ln + "Expecting first row to be column names. " + ln + "reading from 2nd row...";
for (i = 2; i <= rowCount; i++)
{
try
{
tempProcessLog += ln + ">> Sheet [" + cws.Name + "] > Processing Row: " + i + ln;
/** CANT CHECK FOR DUPLICATE AS ELECTIVE LAB CAN HAVE DUPLICATE SUBJECT CODE :( **/
//Check for duplicate subject_code in database
if (Medatabase.isPresent("subject_master", "sub_code", (string)courseWorksheet.Cells[i, 1].Value))
{
tempProcessLog += ln + "duplicate subject_code '" + (string)courseWorksheet.Cells[i, 1].Value + "' already present in database in row " + i;
isValid = false;
invalidRows++;
}
//if not a lab subject
if (String.Compare((string)courseWorksheet.Cells[i, 5].Value, "Lab", true) != 0)
{
//Check for duplicate subject_code in the same excel sheet
if (scodes.IndexOf((string)courseWorksheet.Cells[i, 1].Value) != -1)
{
tempProcessLog += ln + "duplicate subject_code '" + (string)courseWorksheet.Cells[i, 1].Value + "' already present in the same excel sheet in row " + i;
isValid = false;
invalidRows++;
}
scodes.Add((string)courseWorksheet.Cells[i, 1].Value);
}
if (courseWorksheet.Cells[i, 1].Value == null)
{
tempProcessLog += ln + "Empty value given for subject_code in row " + i;
isValid = false;
invalidRows++;
}
if (courseWorksheet.Cells[i, 2].Value == null)
{
tempProcessLog += ln + "Empty value given for subject_name in row " + i;
isValid = false;
invalidRows++;
}
if ((int)courseWorksheet.Cells[i, 3].Value <= 0 || (int)courseWorksheet.Cells[i, 3].Value > Courses.getSemCount(cws.Name))
{
tempProcessLog += ln + "Invalid semester number \"" + (int)courseWorksheet.Cells[i, 3].Value + "\" in row " + i;
isValid = false;
invalidRows++;
}
if ((int)courseWorksheet.Cells[i, 4].Value <= 0)
{
tempProcessLog += ln + "Subject credits cannot be less than or equal to 0 in row " + i;
isValid = false;
invalidRows++;
}
if (courseWorksheet.Cells[i, 5].Value == null)
{
tempProcessLog += ln + "Empty value given for subject type in row " + i;
isValid = false;
invalidRows++;
}
}
catch (Microsoft.CSharp.RuntimeBinder.RuntimeBinderException be)
{
invalidRows++;
isValid = false;
tempProcessLog += ln + "In row [" + i + "] expecting int value, string given!";
LogWriter.WriteError("While validating subject details worksheet", be.Message);
}
//Update output textbox
App.Current.Dispatcher.Invoke(new System.Action(() =>
{
txtOutput.AppendText(tempProcessLog);
txtOutput.ScrollToEnd();
}));
bgwValidate.ReportProgress(Convert.ToInt16(((i * 100) / rowCount)));
tempProcessLog = "";
}
}
bgwValidate.ReportProgress(Convert.ToInt16(((j * 100) / courseWorkbook.Sheets.Count)));
j++;
}
}
catch (System.IO.IOException ioe)
{
tempProcessLog += ln + "ERROR HANDLING FILE :(" + ln + "Please retry";
LogWriter.WriteError("While validating subject details worksheet", ioe.Message);
isValid = false;
return;
}
catch (databaseException)
{
tempProcessLog += ln + "ERROR OCCURED IN DATABASE OPERATION :(" + ln + "Please retry.";
isValid = false;
return;
}
catch (Exception ex)
{
tempProcessLog += ln + "UNEXPECTED ERROR OCCURED :(" + ln + "Please retry.";
LogWriter.WriteError("While validating subject details worksheet", ex.Message);
isValid = false;
return;
}
finally
{
if (invalidRows > 0)
{
tempProcessLog += ln + ln + "There are total " + invalidRows + " errors.";
}
//Update output textbox
tempProcessLog += ln + "Took " + String.Format("{0:0.00}", (DateTime.Now - begin).TotalSeconds) + " seconds";
App.Current.Dispatcher.Invoke(new System.Action(() =>
{
txtOutput.AppendText(tempProcessLog);
txtOutput.ScrollToEnd();
progress.Value = 100;
}));
excelApp.Workbooks.Close();
}
}
private void bgwValidate_DoWork(object sender, DoWorkEventArgs e)
{
//Do the validation here
DateTime begin = DateTime.Now;
try
{
const int MAX_SEMS = 8;
int sheetCount = 0;
int rowCount = 0, columnCount = 0, i;
int isem = 0, tsem = 0;
string[] courseCodes;
isValid = true;
excelApp = new Application();
Workbook courseWorkbook = excelApp.Workbooks.Open(fileName, 0, true, 5, "", "", true, XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
Worksheet courseWorksheet = (Worksheet)courseWorkbook.Sheets.get_Item(1);
Range courseWorksheetRange = courseWorksheet.UsedRange;
sheetCount = courseWorkbook.Sheets.Count;
tempProcessLog = ln + "Reading worksheet..." + ln + "Total sheets : " + sheetCount;
tempProcessLog += ln + "Using Sheet1... ";
rowCount = courseWorksheetRange.Rows.Count;
columnCount = courseWorksheetRange.Columns.Count;
courseCodes = new string[rowCount];
tempProcessLog += ln + "Rows " + rowCount + " | Columns " + columnCount + ln;
if (rowCount <= 1)
{
tempProcessLog += ln + "There are no records to validate...";
App.Current.Dispatcher.Invoke(new System.Action(() =>
{
txtOutput.AppendText(tempProcessLog);
txtOutput.ScrollToEnd();
progress.Value = 100;
}));
isValid = false;
return;
}
if (columnCount > 4 || columnCount < 4)
{
tempProcessLog += ln + "Expecting columns to be 4, " + columnCount + " is present." + ln + "This excelsheet is not meeting the desired format.";
App.Current.Dispatcher.Invoke(new System.Action(() =>
{
txtOutput.AppendText(tempProcessLog);
txtOutput.ScrollToEnd();
progress.Value = 100;
}));
isValid = false;
return;
}
tempProcessLog += ln + "Expecting first row to be column names. " + ln + "reading from 2nd row...";
List <String> tmpCourseCodes = new List <string>();
for (i = 2; i <= rowCount; i++)
{
try
{
tempProcessLog += ln + "> Processing Row: " + i + ln;
if (courseWorksheet.Cells[i, 1].Value != null)
{
//Check for duplicate course_code in database
if (Medatabase.isPresentLike("course_master", "course_code", (string)courseWorksheet.Cells[i, 1].Value))
{
tempProcessLog += ln + "duplicate course_code '" + (string)courseWorksheet.Cells[i, 1].Value + "' already present in database...";
isValid = false;
invalidRows++;
}
//Check for duplicate course_code in the same excel sheet
if (tmpCourseCodes.IndexOf((string)courseWorksheet.Cells[i, 1].Value) != -1)
{
tempProcessLog += ln + "duplicate course_code '" + (string)courseWorksheet.Cells[i, 1].Value + "' already present in the same excel sheet...";
isValid = false;
invalidRows++;
}
else //if not duplicate
{
tmpCourseCodes.Add((string)courseWorksheet.Cells[i, 1].Value);
}
}
else
{
tempProcessLog += ln + "empty course_code given...'" + ln;
isValid = false;
invalidRows++;
}
if (courseWorksheet.Cells[i, 2].Value != null)
{
tsem = Convert.ToInt16(courseWorksheet.Cells[i, 2].Value);
if (tsem > MAX_SEMS || tsem < 0)
{
tempProcessLog += ln + (string)courseWorksheet.Cells[i, 1].Value + " > total semesters must be between 0 and " + MAX_SEMS + ", " + tsem + " given";
isValid = false;
invalidRows++;
}
}
else
{
tempProcessLog += ln + "empty value given for total semesters...'" + ln;
isValid = false;
invalidRows++;
}
if (courseWorksheet.Cells[i, 3].Value != null)
{
isem = Convert.ToInt16(courseWorksheet.Cells[i, 3].Value);
if (isem < 1)
{
tempProcessLog += ln + (string)courseWorksheet.Cells[i, 1].Value + " > in semesters must be between 0 and " + MAX_SEMS + ", " + isem + " given";
isValid = false;
invalidRows++;
}
if (isem > tsem)
{
tempProcessLog += ln + (string)courseWorksheet.Cells[i, 1].Value + " > in semesters can't be > than total sems, " + isem + " given";
isValid = false;
invalidRows++;
}
if (isem > MAX_SEMS)
{
tempProcessLog += ln + (string)courseWorksheet.Cells[i, 1].Value + " > max in semesters possible is " + MAX_SEMS + ", " + isem + " given";
isValid = false;
invalidRows++;
}
}
else
{
tempProcessLog += ln + "empty value given for in semesters...'" + ln;
isValid = false;
invalidRows++;
}
if (courseWorksheet.Cells[i, 4].Value != null)
{
if ((int)courseWorksheet.Cells[i, 4].Value < 1)
{
tempProcessLog += ln + "credits must be greater than 0";
isValid = false;
invalidRows++;
}
}
else
{
tempProcessLog += ln + "empty value given for total credits...'" + ln;
isValid = false;
invalidRows++;
}
}
catch (Microsoft.CSharp.RuntimeBinder.RuntimeBinderException be)
{
invalidRows++;
isValid = false;
tempProcessLog += ln + "In row [" + i + "] expecting numeric value, string given!";
LogWriter.WriteError("During course excel sheet validation", be.Message);
}
//Update output textbox
App.Current.Dispatcher.Invoke(new System.Action(() =>
{
txtOutput.AppendText(tempProcessLog);
txtOutput.ScrollToEnd();
}));
bgwValidate.ReportProgress(Convert.ToInt16(((i * 100) / rowCount)));
tempProcessLog = "";
}
}
catch (System.IO.IOException ioe)
{
tempProcessLog += ln + "ERROR HANDLING FILE :(" + ln + "Please retry";
LogWriter.WriteError("During course excel sheet validation", ioe.Message);
isValid = false;
return;
}
catch (databaseException)
{
tempProcessLog += ln + "ERROR OCCURED IN DATABASE OPERATION :(" + ln + "Please retry.";
isValid = false;
return;
}
catch (Exception ex)
{
tempProcessLog += ln + "UNEXPECTED ERROR OCCURED :(" + ln + "Please retry.";
LogWriter.WriteError("During course excel sheet validation", ex.Message);
isValid = false;
return;
}
finally
{
if (invalidRows > 0)
{
tempProcessLog += ln + "There are total " + invalidRows + " errors.";
tempProcessLog += ln + "Took " + String.Format("{0:0.00}", (DateTime.Now - begin).TotalSeconds) + " seconds";
App.Current.Dispatcher.Invoke(new System.Action(() =>
{
txtOutput.AppendText(tempProcessLog);
txtOutput.ScrollToEnd();
progress.Value = 100;
}));
}
excelApp.Workbooks.Close();
}
}
