public Threading.Task PrintAsync(ViewClaim claim, string selectedPrinter)
{
if (claim == null)
{
throw new ArgumentNullException("claim");
}
Threading.Task tsk = Threading.Task.Run(async() =>
{
_jobId++;
lock (_locker) //Write to thread shared variable;
{
_backgroundJobs.Enqueue(_jobId);
}
Documents docs = null;
_Document doc = null;
try
{
docs = _wordApplication.Documents;
doc = docs.Add(_wordTemplatePath);
var d = FieldMapping(claim);
FillFields(doc.Fields, d);
//doc.Activate();
//_wordApplication.Dialogs[WdWordDialog.wdDialogFilePrint].Show();
//if (result == -1)
//{
// doc.PrintOut();
//}
//Don't call microsoft word PrintOut method directly here because PrintOut method
//Runs async and will return immediately, therefor letting you to close the word befor
//The print job finished which will lead to uncompleted printing job.
//So, the solution is to wrap the Word 'PrintOut' method in an asyn method and then
//wait on it so we will not proceed until my async method return which will return only
//after the Word PrintOut method runs to complete.
await PrintOut(doc, selectedPrinter);
}
finally
{
doc.Close(false);
lock (_locker) //Write to thread shared variable;
{
_backgroundJobs.Dequeue();
}
}
}
);
return(tsk);
}
private Dictionary <string, string> FieldMapping(ViewClaim claim)
{
Dictionary <string, string> lst = new Dictionary <string, string>();
lst.Add("ClaimSequence", claim.SequenceText);
lst.Add("CustomerName", claim.CustomerName);
lst.Add("ClaimLetter", claim.ClaimLetter);
lst.Add("GrandTotal", claim.GrandTotal.ToString("#,0", CultureInfo.InvariantCulture));
//This is a flag to experience the ArgumentOutOfRangeException just once.
bool argumentOutOfRangeReached = false;
for (int i = 0; i < 10; i++)
{
string row = null;
switch (i)
{
case 0:
row = "a";
break;
case 1:
row = "b";
break;
case 2:
row = "c";
break;
case 3:
row = "d";
break;
case 4:
row = "e";
break;
case 5:
row = "f";
break;
case 6:
row = "g";
break;
case 7:
row = "h";
break;
case 8:
row = "i";
break;
case 9:
row = "j";
break;
}
try
{
//User "#,0" format for ToString method so that you will get
//number formated with thousands separator and if the number is zero
//zero will be returned no empty string.
if (!argumentOutOfRangeReached)
{
var detailRow = claim.Details[i];
lst.Add((row + "1"), detailRow.PropertyType);
lst.Add((row + "2"), detailRow.TypeNo);
lst.Add((row + "3"), detailRow.PropertyLocation);
lst.Add((row + "4"), detailRow.Rent.ToString("#,0", CultureInfo.InvariantCulture));
lst.Add((row + "5"), detailRow.Maintenance.ToString("#,0", CultureInfo.InvariantCulture));
lst.Add((row + "6"), detailRow.Deposit.ToString("#,0", CultureInfo.InvariantCulture));
lst.Add((row + "7"), detailRow.Others.ToString("#,0", CultureInfo.InvariantCulture));
lst.Add((row + "8"), detailRow.Total.ToString("#,0", CultureInfo.InvariantCulture));
lst.Add((row + "9"), detailRow.Paid.ToString("#,0", CultureInfo.InvariantCulture));
lst.Add((row + "10"), detailRow.Balance.ToString("#,0", CultureInfo.InvariantCulture));
lst.Add((row + "11"), detailRow.OutstandingRentBalance.ToString("#,0", CultureInfo.InvariantCulture));
lst.Add((row + "12"), detailRow.OutstandingMaintBalance.ToString("#,0", CultureInfo.InvariantCulture));
lst.Add((row + "13"), detailRow.NetBalance.ToString("#,0", CultureInfo.InvariantCulture));
}
else
{
lst.Add((row + "1"), "");
lst.Add((row + "2"), "");
lst.Add((row + "3"), "");
lst.Add((row + "4"), "");
lst.Add((row + "5"), "");
lst.Add((row + "6"), "");
lst.Add((row + "7"), "");
lst.Add((row + "8"), "");
lst.Add((row + "9"), "");
lst.Add((row + "10"), "");
lst.Add((row + "11"), "");
lst.Add((row + "12"), "");
lst.Add((row + "13"), "");
}
}
catch (ArgumentOutOfRangeException)
{
lst.Add((row + "1"), "");
lst.Add((row + "2"), "");
lst.Add((row + "3"), "");
lst.Add((row + "4"), "");
lst.Add((row + "5"), "");
lst.Add((row + "6"), "");
lst.Add((row + "7"), "");
lst.Add((row + "8"), "");
lst.Add((row + "9"), "");
lst.Add((row + "10"), "");
lst.Add((row + "11"), "");
lst.Add((row + "12"), "");
lst.Add((row + "13"), "");
argumentOutOfRangeReached = true;
}
}
return(lst);
}