iTextSharp GetFieldPositions to SetSimpleColumn

Question

I\'m using the latest version of iTextSharp found here: http://sourceforge.net/projects/itextsharp/

I am trying to use ColumnText.SetSimpleColumn after getting the p

Answer 1

I think this was done for two reasons. 1), GetFieldPositions() could actually return multiple items because you can technically have more than one field with the same name and 2), the original array method required knowing "magic array numbers" to find what was what. All of the code that you saw pretty much assumed that GetFieldPositions() only returned a single item, which is true 99% of the time. Instead of working with indexes you can now work with normal properties.

So the code from the link that you posted:

float[] fieldPosition = null;
fieldPosition = fields.GetFieldPositions("fieldNameInThePDF");
left = fieldPosition[1];
right = fieldPosition[3];
top = fieldPosition[4];
bottom = fieldPosition[2];
if (rotation == 90)
{
    left = fieldPosition[2];
    right = fieldPosition[4];
    top = pageSize.Right - fieldPosition[1];
    bottom = pageSize.Right - fieldPosition[3];
}

Should be converted to:

IList<AcroFields.FieldPosition> fieldPositions = fields.GetFieldPositions("fieldNameInThePDF");
if (fieldPositions == null || fieldPositions.Count <= 0) throw new ApplicationException("Error locating field");
AcroFields.FieldPosition fieldPosition = fieldPositions[0];
left = fieldPosition.position.Left;
right = fieldPosition.position.Right;
top = fieldPosition.position.Top;
bottom = fieldPosition.position.Bottom;
if (rotation == 90)
{
    left = fieldPosition.position.Bottom;
    right = fieldPosition.position.Top;
    top = pageSize.Right - fieldPosition.position.Left;
    bottom = pageSize.Right - fieldPosition.position.Right;
}