private DataTable CreateOrderTransactionDatesPreviewTable()
{
DataTable dt = new DataTable();
RandomNumber rnd = new RandomNumber();
int numPreviewDates = 10;
DateTime earliestDate = DateTime.MinValue;
DateTime latestDate = DateTime.MinValue;
DateTime currDate = DateTime.MinValue;
bool includeWeekendDays = this.chkIncludeWeekendDays.Checked;
int minNumSalesOrdersPerDate = 1;
int maxNumSalesOrdersPerDate = 1;
int minNumPurchaseOrdersPerDate = 1;
int maxNumPurchaseOrdersPerDate = 1;
TimeSpan minTimePerDate = TimeSpan.MinValue;
TimeSpan maxTimePerDate = TimeSpan.MinValue;
int minSecondsPerDate = 1;
int maxSecondsPerDate = 1;
int numSalesOrdersForDate = 0;
int numPurchaseOrdersForDate = 0;
int numSecondsForTx = 0;
TimeSpan txTime = TimeSpan.MinValue;
StringBuilder timeList = new StringBuilder();
string errMsg = VerifyFormValues();
if (errMsg.Length > 0)
{
WriteToMessageLog(errMsg);
AppMessages.DisplayErrorMessage(errMsg);
return(null);
}
DataColumn dc0 = new DataColumn();
dc0.ColumnName = "DayNum";
dc0.DataType = Type.GetType("System.Int32");
dc0.AutoIncrement = true;
dc0.AutoIncrementSeed = 1;
dc0.AutoIncrementStep = 1;
DataColumn dc1 = new DataColumn();
dc1.ColumnName = "DayOfWeek";
dc1.DataType = Type.GetType("System.String");
dc1.MaxLength = 255;
DataColumn dc2 = new DataColumn();
dc2.ColumnName = "DateAndTime";
dc2.DataType = Type.GetType("System.DateTime");
DataColumn dc3 = new DataColumn();
dc3.ColumnName = "NumSalesOrders";
dc3.DataType = Type.GetType("System.Int32");
DataColumn dc4 = new DataColumn();
dc4.ColumnName = "NumPurchaseOrders";
dc4.DataType = Type.GetType("System.Int32");
DataColumn dc5 = new DataColumn();
dc5.ColumnName = "Tx Times";
dc5.DataType = Type.GetType("System.String");
dc5.MaxLength = Int16.MaxValue;
dt.Columns.Add(dc0);
dt.Columns.Add(dc1);
dt.Columns.Add(dc2);
dt.Columns.Add(dc3);
dt.Columns.Add(dc4);
dt.Columns.Add(dc5);
numPreviewDates = AppTextGlobals.ConvertStringToInt(this.txtNumPreviewDates.Text, -1);
earliestDate = AppTextGlobals.ConvertStringToDateTime(this.txtEarliestTransactionDate.Text, DateTime.MinValue);
latestDate = AppTextGlobals.ConvertStringToDateTime(this.txtLatestTransactionDate.Text, DateTime.MinValue);
currDate = earliestDate;
minNumSalesOrdersPerDate = AppTextGlobals.ConvertStringToInt(this.txtMinNumSalesOrdersPerDate.Text, 1);
maxNumSalesOrdersPerDate = AppTextGlobals.ConvertStringToInt(this.txtMaxNumSalesOrdersPerDate.Text, 1);
minNumPurchaseOrdersPerDate = AppTextGlobals.ConvertStringToInt(this.txtMinNumPurchaseOrdersPerDate.Text, 1);
maxNumPurchaseOrdersPerDate = AppTextGlobals.ConvertStringToInt(this.txtMaxNumPurchaseOrdersPerDate.Text, 1);
minTimePerDate = AppTextGlobals.ConvertStringToTimeSpan(this.txtMinTimePerDate.Text, "00:00:00");
maxTimePerDate = AppTextGlobals.ConvertStringToTimeSpan(this.txtMaxTimePerDate.Text, "00:00:00");
minSecondsPerDate = (int)minTimePerDate.TotalSeconds;
maxSecondsPerDate = (int)maxTimePerDate.TotalSeconds;
for (int r = 0; r < numPreviewDates; r++)
{
numSalesOrdersForDate = rnd.GenerateRandomInt(minNumSalesOrdersPerDate, maxNumSalesOrdersPerDate);
numPurchaseOrdersForDate = rnd.GenerateRandomInt(minNumPurchaseOrdersPerDate, maxNumPurchaseOrdersPerDate);
DataRow dr = dt.NewRow();
dr[1] = currDate.DayOfWeek.ToString();
dr[2] = currDate;
dr[3] = numSalesOrdersForDate;
dr[4] = numPurchaseOrdersForDate;
timeList.Length = 0;
for (int so = 0; so < numSalesOrdersForDate; so++)
{
numSecondsForTx = rnd.GenerateRandomInt(minSecondsPerDate, maxSecondsPerDate);
DateTime txDate = currDate.AddSeconds(numSecondsForTx);
timeList.Append("SO at ");
timeList.Append(txDate.ToString("HH:mm:ss"));
timeList.Append(", ");
}
for (int po = 0; po < numPurchaseOrdersForDate; po++)
{
numSecondsForTx = rnd.GenerateRandomInt(minSecondsPerDate, maxSecondsPerDate);
DateTime txDate = currDate.AddSeconds(numSecondsForTx);
timeList.Append("PO at ");
timeList.Append(txDate.ToString("HH:mm:ss"));
timeList.Append(", ");
}
dr[5] = timeList.ToString().TrimEnd(' ').TrimEnd(',');
dt.Rows.Add(dr);
//increment counters and dates to continue loop
currDate = currDate.AddDays(1);
if (currDate > latestDate)
{
break;
}
if (currDate.DayOfWeek == DayOfWeek.Sunday &&
includeWeekendDays == false)
{
currDate = currDate.AddDays(1);
}
else if (currDate.DayOfWeek == DayOfWeek.Saturday &&
includeWeekendDays == false)
{
currDate = currDate.AddDays(2);
}
else
{
//keep the previously calculated date
;
}
}
return(dt);
}
/// <summary>
/// Creates a set of sequential numbers that start from a user specified start number and are incremented by a user specified number. This is a testing routine.
/// </summary>
/// <param name="incrementType">Time slice to increment with (seconds, minutes, hours, days, years).</param>
/// <param name="numRows">Number of random values to generate.</param>
/// <param name="incrementSize">Number to increment by.</param>
/// <param name="startDateForSequence">First date in the sequence.</param>
/// <param name="endDateForSequence">Maximum date in the sequence.</param>
/// <param name="generateRandomTime">If true, a randomized time value will be generated for each sequential date.</param>
/// <param name="fromTime">Minimum time value to generate.</param>
/// <param name="toTime">Maximum time value to generate.</param>
/// <param name="minNumDatesPerIncrement">For each date increment, the minimum number of dates that can be generated with same date into the sequence.</param>
/// <param name="maxNumDatesPerIncrement">For each date increment, the maximum number of dates that can be generated with same date into the sequence.</param>
/// <param name="initStartDateForSequence">If maximum date is passed during sequence generation, the sequence will be restarted with this date and new values will be appended to the existing sequence.</param>
/// <param name="dateConversionType">Determines whether or not to convert the DateTime value to an integer. Useful for data warehousing scenarios.</param>
/// <returns>ADO.NET DataTable containing the set of random values.</returns>
/// <remarks>This routine is used for testing.</remarks>
public DataTable CreateDateSequencePreviewDataTable(enRandomIncrementType incrementType, int numRows, string incrementSize, string startDateForSequence, string endDateForSequence, bool generateRandomTime, string fromTime, string toTime, string minNumDatesPerIncrement, string maxNumDatesPerIncrement, string initStartDateForSequence, enDateConversionType dateConversionType)
{
DataTable dt = new DataTable();
int sizeOfIncrement = 1;
DateTime startDate = DateTime.MinValue;
DateTime endDate = DateTime.MaxValue;
DateTime currDate = DateTime.Now;
DateTime initDate = DateTime.MinValue;
int minIncrementDates = 1;
int maxIncrementDates = 1;
TimeSpan fromTimeTs = Convert.ToDateTime(fromTime).TimeOfDay;
TimeSpan toTimeTs = Convert.ToDateTime(toTime).TimeOfDay;
double fromSeconds = fromTimeTs.TotalSeconds;
double toSeconds = toTimeTs.TotalSeconds;
double randNum = 0.0;
try
{
sizeOfIncrement = AppTextGlobals.ConvertStringToInt(incrementSize, 1);
startDate = AppTextGlobals.ConvertStringToDateTime(startDateForSequence, new DateTime(1000, 1, 1));
endDate = AppTextGlobals.ConvertStringToDateTime(endDateForSequence, new DateTime(5999, 12, 31));
initDate = AppTextGlobals.ConvertStringToDateTime(initStartDateForSequence, new DateTime(1000, 1, 1));
currDate = IncrementDateTime(incrementType, -sizeOfIncrement, startDate, startDate);
minIncrementDates = AppTextGlobals.ConvertStringToInt(minNumDatesPerIncrement, 1);
maxIncrementDates = AppTextGlobals.ConvertStringToInt(maxNumDatesPerIncrement, 1);
DataColumn dc = new DataColumn("RandomValue");
//dc.DataType = Type.GetType("System.DateTime");
switch (dateConversionType)
{
case enDateConversionType.DoNotConvert:
dc.DataType = Type.GetType("System.DateTime");
break;
case enDateConversionType.ConvertDateTo32bitInt:
dc.DataType = Type.GetType("System.Int32");
break;
case enDateConversionType.ConvertTimeTo32bitInt:
dc.DataType = Type.GetType("System.Int32");
break;
case enDateConversionType.ConvertDateTimeTo64bitInt:
dc.DataType = Type.GetType("System.Int64");
break;
default:
dc.DataType = Type.GetType("System.DateTime");
break;
}
dt.Columns.Add(dc);
for (int i = 0; i < numRows; i++)
{
currDate = IncrementDateTime(incrementType, sizeOfIncrement, currDate, startDate);
if (currDate > endDate)
{
currDate = initDate;
}
int numDatesToGenerate = _rn.GenerateRandomInt(minIncrementDates, maxIncrementDates);
DateTime dtm = currDate;
for (int n = 0; n < numDatesToGenerate; n++)
{
DataRow dr = dt.NewRow();
if (generateRandomTime)
{
randNum = _rn.GenerateRandomNumber(fromSeconds, toSeconds);
TimeSpan ts2 = new TimeSpan(0, 0, 0, (int)randNum, 0);
try
{
dtm = currDate.AddSeconds(ts2.TotalSeconds);
}
catch (System.ArgumentOutOfRangeException)
{
dtm = startDate;
currDate = startDate;
}
}
//dr[0] = dtm;
switch (dateConversionType)
{
case enDateConversionType.DoNotConvert:
dr[0] = dtm;
break;
case enDateConversionType.ConvertDateTo32bitInt:
dr[0] = Convert.ToInt32(dtm.ToString("yyyyMMdd"));
break;
case enDateConversionType.ConvertTimeTo32bitInt:
dr[0] = Convert.ToInt32(dtm.ToString("HHmmss"));
break;
case enDateConversionType.ConvertDateTimeTo64bitInt:
dr[0] = Convert.ToInt64(dtm.ToString("yyyyMMddHHmmss"));
break;
default:
dr[0] = dtm;
break;
}
dt.Rows.Add(dr);
}
}
}
catch (System.Exception ex)
{
_msg.Length = 0;
_msg.Append("Error in CreateSequencePreviewDataTable routine.\r\n");
_msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
throw new System.Exception(_msg.ToString());
}
finally
{
;
}
return(dt);
}
private void EstimateTransactionRowCounts()
{
string errMsg = VerifyFormValues();
if (errMsg.Length > 0)
{
WriteToMessageLog(errMsg);
AppMessages.DisplayErrorMessage(errMsg);
return;
}
try
{
_msg.Length = 0;
DateTime earliestTxDate = AppTextGlobals.ConvertStringToDateTime(this.txtEarliestTransactionDate.Text, DateTime.MinValue);
DateTime latestTxDate = AppTextGlobals.ConvertStringToDateTime(this.txtLatestTransactionDate.Text, DateTime.MinValue);
TimeSpan dateDiff = latestTxDate.Subtract(earliestTxDate);
double numDays = dateDiff.TotalDays;
double numWeeks = numDays / 7.0;
if (this.chkIncludeWeekendDays.Checked == false)
{
numDays = numDays - (numWeeks * 2.0);
}
_msg.Append("Estimated number of days: ");
_msg.Append(numDays.ToString("#,##0"));
_msg.Append(Environment.NewLine);
double minNum = AppTextGlobals.ConvertStringToDouble(this.txtMinNumSalesOrdersPerDate.Text, 0.0);
double maxNum = AppTextGlobals.ConvertStringToDouble(this.txtMaxNumSalesOrdersPerDate.Text, 0.0);
double numSalesTxs = numDays * ((minNum + maxNum) / 2.0);
double numSalesDetails = numSalesTxs * 3.0;
double numInternetSalesDetails = numSalesTxs * 2.0;
double numResellerSalesDetails = numSalesTxs * 16.0;
_msg.Append("Estimated number of sales order headers: ");
_msg.Append(numSalesTxs.ToString("#,##0"));
_msg.Append(Environment.NewLine);
_msg.Append("Estimated number of sales order details: ");
_msg.Append(numSalesDetails.ToString("#,##0"));
_msg.Append(Environment.NewLine);
_msg.Append("Estimated number of internet order details: ");
_msg.Append(numInternetSalesDetails.ToString("#,##0"));
_msg.Append(Environment.NewLine);
_msg.Append("Estimated number of reseller order details: ");
_msg.Append(numResellerSalesDetails.ToString("#,##0"));
_msg.Append(Environment.NewLine);
minNum = AppTextGlobals.ConvertStringToDouble(this.txtMinNumPurchaseOrdersPerDate.Text, 0.0);
maxNum = AppTextGlobals.ConvertStringToDouble(this.txtMaxNumPurchaseOrdersPerDate.Text, 0.0);
double numPurchaseTxs = numDays * ((minNum + maxNum) / 2.0);
double numPurchaseDetails = numPurchaseTxs * 2.0;
_msg.Append("Estimated number of purchase order headers: ");
_msg.Append(numPurchaseTxs.ToString("#,##0"));
_msg.Append(Environment.NewLine);
_msg.Append("Estimated number of purchase order details: ");
_msg.Append(numPurchaseDetails.ToString("#,##0"));
_msg.Append(Environment.NewLine);
WriteToMessageLog(_msg.ToString());
AppMessages.DisplayInfoMessage(_msg.ToString());
}
catch (System.Exception ex)
{
_msg.Length = 0;
_msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
Program._messageLog.WriteLine(_msg.ToString());
AppMessages.DisplayErrorMessage(_msg.ToString(), _saveErrorMessagesToAppLog);
}
finally
{
;
}
}