@rabin.samanta,
You can meet this requirement by using the following code:
Document doc = new Document("E:\\temp\\input.docx");
Paragraph lastPara = doc.FirstSection.Body.LastParagraph;
lastPara.ParentNode.InsertBefore(lastPara, lastPara.PreviousSibling);
doc.Save("E:\\Temp\\19.3.docx");
Regarding 2 and 4, please try using the following code:
private static Run SplitRun(Run run, int position)
{
Run afterRun = (Run)run.Clone(true);
afterRun.Text = run.Text.Substring(position);
run.Text = run.Text.Substring((0), (0) + (position));
run.ParentNode.InsertAfter(afterRun, run);
return afterRun;
}
private class ReplaceEvaluator : IReplacingCallback
{
ReplaceAction IReplacingCallback.Replacing(ReplacingArgs e)
{
// This is a Run node that contains either the beginning or the complete match.
Node currentNode = e.MatchNode;
// The first (and may be the only) run can contain text before the match,
// in this case it is necessary to split the run.
if (e.MatchOffset > 0)
currentNode = SplitRun((Run)currentNode, e.MatchOffset);
// This array is used to store all nodes of the match for further removing.
ArrayList runs = new ArrayList();
// Find all runs that contain parts of the match string.
int remainingLength = e.Match.Value.Length;
while (
(remainingLength > 0) &&
(currentNode != null) &&
(currentNode.GetText().Length <= remainingLength))
{
runs.Add(currentNode);
remainingLength = remainingLength - currentNode.GetText().Length;
// Select the next Run node.
// Have to loop because there could be other nodes such as BookmarkStart etc.
do
{
currentNode = currentNode.NextSibling;
}
while ((currentNode != null) && (currentNode.NodeType != NodeType.Run));
}
// Split the last run that contains the match if there is any text left.
if ((currentNode != null) && (remainingLength > 0))
{
SplitRun((Run)currentNode, remainingLength);
runs.Add(currentNode);
}
//// to insert new text
//DocumentBuilder builder = new
//DocumentBuilder((Document)e.MatchNode.Document);
//builder.MoveTo((Run)runs[runs.Count - 1]);
//builder.Write("Sam ");
//// To delete the sequence
//foreach (Run run in runs)
// run.Remove();
return ReplaceAction.Skip;
}
}
Document doc = new Document("E:\\temp\\input.docx");
FindReplaceOptions opts = new FindReplaceOptions();
opts.Direction = FindReplaceDirection.Backward;
opts.ReplacingCallback = new ReplaceEvaluator();
doc.Range.Replace(new Regex("Rabin"), "", opts);
doc.Save("E:\\Temp\\19.3.docx");
And regarding,
Please refer to the following section of documentation:
Find and Replace
Hope, this helps.