/// <summary>
/// Generates the neccessary search options and performs a find in the specified direction.
/// </summary>
public void Find(ViewerSearchDirection direction)
{
string searchDirection = string.Empty;
string beginSearchPoint = string.Empty;
string endSearchPoint = string.Empty;
ViewerSearchOptions searchOptions = (ckMatchCase.Checked ? ViewerSearchOptions.MatchCase : ViewerSearchOptions.None);
switch (direction)
{
case ViewerSearchDirection.Previous:
searchDirection = "FindPrevious";
beginSearchPoint = "top";
endSearchPoint = "end";
searchOptions = ViewerSearchOptions.Backward | searchOptions;
break;
case ViewerSearchDirection.Next:
default:
searchDirection = "FindNext";
beginSearchPoint = "end";
endSearchPoint = "top";
//searchOptions Search Options already set, no change needed.
break;
}
Find(searchOptions, searchDirection, beginSearchPoint, endSearchPoint);
}
/// <summary>
/// Performs a find using the specified options and direction from the public Find method.
/// </summary>
private void Find(ViewerSearchOptions searchOptions, string searchDirection, string beginSearchPoint, string endSearchPoint)
{
if (_Viewer == null)
{
throw new ApplicationException(string.Format("Viewer property must be set prior to issuing {0}.", searchDirection));
}
if (tbFind.Text.Length == 0) // must have something to find
{
return;
}
bool begin = position == null;
position = _Viewer.Find(tbFind.Text, position, searchOptions);
if (position == null)
{
if (!begin) // if we didn't start from beginning already; try from bottom
{
position = _Viewer.Find(tbFind.Text, position, searchOptions);
}
lStatus.Text = position == null ?
"Phrase not found" : string.Format("Reached {0} of report, continued from {1}", beginSearchPoint, endSearchPoint);
_Viewer.HighlightPageItem = position;
if (position != null)
{
_Viewer.ScrollToPageItem(position);
}
}
else
{
lStatus.Text = "";
_Viewer.HighlightPageItem = position;
_Viewer.ScrollToPageItem(position);
}
}
