Load Template, Update and Save

Here we work with a template which does not only contain data field placeholder but also tables.

We can export this template using a few lines of code:

rtF2PDF1.SetLicense("","",0); // Your data here ....

rtF2PDF1.FileName = "c:\\newpdf.pdf";

if(rtF2PDF1.LoadRTF( "c:\Template.rtf" ))

{

   rtF2PDF1.Export();

}

To also update the fields we first convert the tags into merge fields and then step through the document and modify it accordingly.

// requires:  "using wPDF; using WPDynamic;"

IWPEditor Memo =  rtF2PDF1.Memo;

IWPTextCursor Cursor = Memo.TextCursor;

// Convert all <<*>> int merge fields since such fields can be updated a lot easier

// then deletion and inserting text. Also text attributes are preserved better.

Cursor.FieldsFromTokens("<<", ">>", "");

// Now we go through the text and update it

// Go to start

Cursor.CPPosition = 0;

// And move from mail merge field to mail merge field

while(Cursor.CPMoveNextObject(WPDynamic.TextObjTypes.wpobjMergeField, false))

{

   Memo.CurrObj.EmbeddedText = "data of " + Memo.CurrObj.Name;

} 

Since this code now works to update the fields we update the code to modify each table to have as many data rows as records in a query. In this example however we just set the rowcount value to a random value. This code should be executed after FieldsFromTokens.

// Now we locate all tables and update their row count to match our query.

// In this example we just use a random value

Random rnd = new Random();

Cursor.CPPosition = 0;

while(Cursor.CPMoveNextTable())

{

   int rowcount = (int)rnd.Next(20);

   if (rowcount==0) Cursor.TableDelete();

   else

   {

      Cursor.CPTableRowNr = 1; // goto row # 1

      Memo.CurrPar.SetPtr( Cursor.CPRowPtr );

      while(rowcount-->0) Memo.CurrPar.Duplicate();

   }

}