Merge pull request 'B2026 053 find unlinked values of selected' (#795) from B2026-053-Find-Unlinked-Values-of-Selected into Development

Looks Good. Ready For QA.
FYI - Branch was out of date so I updated it.

Would be sure to test both Searches that changed.

PROMS/Volian.Controls.Library/DisplaySearch.cs

@@ -2016,35 +2016,16 @@ namespace Volian.Controls.Library
 					{
 						ReportTitle = string.Format("Search for '{0}'", TextSearchString);
 
-						// C2020-009: Search - Allow search 'By Word'. 
 						string byWordPrefix = string.Empty;
 						string byWordSuffix = string.Empty;
 						if (cbxByWord.Checked)
 						{
-							// Generate a prefix & suffix to be used in the sql query around the search string.
-							// If the search string starts (prefix)/ends(suffix) with a number, then use an expression that 
-							// does not allow the preceding/following text to have a number, '.', letter or other rtf 
-							// commands.  If the search string starts/ends with a letter, then use an expression that does not
-							// find the preceding/following text that is text, i.e. a letter.
-							if (Regex.IsMatch(TextSearchString, @"^[\d\.]"))        // starts with a number or '.' decimal pt
-							{
-								byWordPrefix = @"[^0-9a-zA-Z.vbpi:\\-]";
-							}
-							else if (Regex.IsMatch(TextSearchString, @"^[a-zA-Z]")) // starts with a letter
-							{
-								byWordPrefix = @"[^a-zA-Z]";
-							}
-							if (Regex.IsMatch(TextSearchString, @"[\d\.]$"))        // ends with a number or decimal
-							{
-								byWordSuffix = @"[^0-9a-zA-Z.vbpi:\\-]";
-							}
-							else if (Regex.IsMatch(TextSearchString, @"[a-zA-Z]$")) // ends with a letter
-							{
-								byWordSuffix = @"[^a-zA-Z]";
-							}
+							byWordPrefix = GetByWordSettings(TextSearchString, true);
+							byWordSuffix = GetByWordSettings(TextSearchString, false);
 						}
+
 							SearchString = TextSearchString;
-							// B2022-031 - added a cbxProcSectSrch to filter out procedure and section titles from global search results.
+
 						SearchResults = ItemInfoList.GetListFromTextSearch(DVISearchList, TypeSearchList, TextSearchString /*.Replace(@"\",@"\u9586?")*/, cbxBooleanTxtSrch.Checked ? 2 : cbxCaseSensitive.Checked ? 1 : 0, cbxProcSectSrch.Checked ? 1 : 0, cbxIncROTextSrch.Checked ? ItemSearchIncludeLinks.Value : ItemSearchIncludeLinks.Nothing, includeRTFformat, includeSpecialChars, unitPrefix, byWordPrefix, byWordSuffix);
 
 						cmbResultsStyleIndex = 3;  // display step text in results
@@ -2078,8 +2059,8 @@ namespace Volian.Controls.Library
 
 					if (cbxFndUnLnkROVals.Enabled && cbxFndUnLnkROVals.Checked)
 					{
-						// B2022-031 - added a cbxProcSectSrch to filter out procedure and section titles from global search results.
-						SearchResults = ItemInfoList.GetListFromTextSearch(DVISearchList, TypeSearchList, ROSearchList, cbxBooleanTxtSrch.Checked ? 2 : cbxCaseSensitive.Checked ? 1 : 0, cbxProcSectSrch.Checked ? 1 : 0, ItemSearchIncludeLinks.Nothing, includeRTFformat, includeSpecialChars, unitPrefix, string.Empty, string.Empty);
+
+						SearchResults = ItemInfoList.GetListFromTextSearch(DVISearchList, TypeSearchList, ROSearchList, cbxBooleanTxtSrch.Checked ? 2 : cbxCaseSensitive.Checked ? 1 : 0, cbxProcSectSrch.Checked ? 1 : 0, ItemSearchIncludeLinks.Nothing, includeRTFformat, includeSpecialChars, unitPrefix, GetByWordSettings(ROSearchList, true), GetByWordSettings(ROSearchList, false));
 						cmbResultsStyleIndex = 3;  // display step text in results
 					}
 					else
@@ -2189,7 +2170,52 @@ namespace Volian.Controls.Library
 			}
 			OnSearchComplete(new DisplaySearchEventArgs(TimeSpan.FromTicks(DateTime.Now.Ticks - start.Ticks)));
 		}
+		private string GetByWordSettings(string ss, bool checkstart)
+		{
 
+			// C2020-009: Search - Allow search 'By Word'. 
+
+			//	// Generate a prefix & suffix to be used in the sql query around the search string.
+			//	// If the search string starts (prefix)/ends(suffix) with a number, then use an expression that 
+			//	// does not allow the preceding/following text to have a number, '.', letter or other rtf 
+			//	// commands.  If the search string starts/ends with a letter, then use an expression that does not
+			//	// find the preceding/following text that is text, i.e. a letter.
+
+			if (ss.Length > 0)
+			{
+				//checking start
+				if (checkstart)
+				{
+					// starts with a number or '.' decimal pt
+					if (char.IsNumber(ss, 0) || ss[0] == '.')
+					{
+						return @"[^0-9a-zA-Z.vbpi:\\-]";
+					}
+					// starts with a letter
+					else if (char.IsLetter(ss, 0))
+					{
+						return @"[^a-zA-Z]";
+					}
+				}
+				//checking end
+				else
+				{
+					// ends with a number or '.' decimal pt
+					if (char.IsNumber(ss, ss.Length - 1) || ss[ss.Length - 1] == '.')
+					{
+						return @"[^0-9a-zA-Z.vbpi:\\-]";
+					}
+					// ends with a letter
+					else if (char.IsLetter(ss, ss.Length - 1))
+					{
+						return @"[^a-zA-Z]";
+					}
+				}
+			}
+
+			//default
+			return string.Empty;
+		}
 		private void ClearResults()     // B2021-103 if no results when RNO only, clear results list.  (moved from btnSearch_Click)
 		{
 			if (tabSearchTypes.SelectedTab != tabSearchTypes.Tabs[4])