public void FieldMerging(FieldMergingArgs args)
{
// ExStart:RemoveExtraParagraphs
// Store the parent paragraph of the current field for easy access.
Paragraph parentParagraph = args.Field.Start.ParentParagraph;
// Define the logic to be used when the ContactDetails region is encountered.
// The region is removed and replaced with a single line of text stating that there are no records.
if (args.TableName == "ContactDetails")
{
// Called for the first field encountered in a region. This can be used to execute logic on the first field
// In the region without needing to hard code the field name. Often the base logic is applied to the first field and
// Different logic for other fields. The rest of the fields in the region will have a null FieldValue.
if ((string)args.FieldValue == "FirstField")
{
FindReplaceOptions options = new FindReplaceOptions();
// Remove the "Name:" tag from the start of the paragraph
parentParagraph.Range.Replace("Name:", string.Empty, options);
// Set the text of the first field to display a message stating that there are no records.
args.Text = "No records to display";
}
else
{
// We have already inserted our message in the paragraph belonging to the first field. The other paragraphs in the region
// will still remain so we want to remove these. A check is added to ensure that the paragraph has not already been removed.
// which may happen if more than one field is included in a paragraph.
if (parentParagraph.ParentNode != null)
parentParagraph.Remove();
}
}
// ExEnd:RemoveExtraParagraphs
// ExStart:MergeAllCells
// Replace the unused region in the table with a "no records" message and merge all cells into one.
if (args.TableName == "Suppliers")
{
if ((string)args.FieldValue == "FirstField")
{
// We will use the first paragraph to display our message. Make it centered within the table. The other fields in other cells
// within the table will be merged and won't be displayed so we don't need to do anything else with them.
parentParagraph.ParagraphFormat.Alignment = ParagraphAlignment.Center;
args.Text = "No records to display";
}
// Merge the cells of the table together.
Cell cell = (Cell)parentParagraph.GetAncestor(NodeType.Cell);
if (cell != null)
{
if (cell.IsFirstCell)
cell.CellFormat.HorizontalMerge = CellMerge.First; // If this cell is the first cell in the table then the merge is started using "CellMerge.First".
else
cell.CellFormat.HorizontalMerge = CellMerge.Previous; // Otherwise the merge is continued using "CellMerge.Previous".
}
}
// ExEnd:MergeAllCells
}
