ExpressionType Enumeration

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Provides the fields that represent the expression type for string matching.

[Visual Basic]

Public Enum ExpressionType As Integer

Remarks

ExpressionType enumeration is used by the SearchCriteria class.

Members

Boolean	Boolean, e.g. AND, OR, NOT etc., expression.
DosExp	DOS style expression most often used for file matching, e.g. *.txt
Exact	Literal expression that must be matched exactly.
RegExp	Regular expression.

Example

[Visual Basic]

engineSearch = New SearchEngineClass

engineSearch.SearchCriteria.FileName = "*.txt"

engineSearch.SearchCriteria.ContainingText = "search"

engineSearch.SearchCriteria.LookIn = "c:\search folder"

' switch the expression engine to Boolean

engineSearch.SearchCriteria.ContentsExprType = ExpressionType.Boolean

Dim listResult As SearchResultItemList = engineSearch.Start( False )