private void btnSetRange_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
if (coloredRange != null)
{
ResetRange(coloredRange);
}
coloredRange = richEditControl1.Document.Selection;
if (coloredRange.Length == 0)
{
return;
}
// Highlight selected range.
SubDocument d = coloredRange.BeginUpdateDocument();
CharacterProperties cp = d.BeginUpdateCharacters(coloredRange);
cp.BackColor = System.Drawing.Color.Yellow;
d.EndUpdateCharacters(cp);
coloredRange.EndUpdateDocument(d);
// Create a new iterator limited to the specified range.
layoutIterator = new LayoutIterator(richEditControl1.DocumentLayout, coloredRange);
doc = coloredRange.BeginUpdateDocument();
richEditControl1.Document.ChangeActiveDocument(doc);
coloredRange.EndUpdateDocument(doc);
// Select the first element in the highlighted range.
RangedLayoutElement el = richEditControl1.DocumentLayout.GetElement(coloredRange.Start, LayoutType.PlainTextBox);
while (layoutIterator.MoveNext())
{
RangedLayoutElement element = layoutIterator.Current as RangedLayoutElement;
if ((element != null) && (element.Equals(el)))
{
UpdateInfoAndSelection();
return;
}
}
}
private void btnStartHere_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
if (coloredRange != null)
{
ResetRange(coloredRange);
}
doc = richEditControl1.Document.CaretPosition.BeginUpdateDocument();
richEditControl1.Document.ChangeActiveDocument(doc);
layoutIterator = new LayoutIterator(richEditControl1.DocumentLayout, doc.Range);
RangedLayoutElement el = richEditControl1.DocumentLayout.GetElement(richEditControl1.Document.CaretPosition, LayoutType.PlainTextBox);
do
{
RangedLayoutElement element = layoutIterator.Current as RangedLayoutElement;
if ((element != null) && (element.Equals(el)))
{
UpdateInfoAndSelection();
return;
}
} while (layoutIterator.MoveNext());
}