IVsBooleanSymbolExpressionEvaluator.EvaluateExpression Method
Tests whether a set of symbols causes the expression to evaluate to true.
Namespace: Microsoft.VisualStudio.Shell.Interop
Assemblies: Microsoft.VisualStudio.Shell.11.0 (in Microsoft.VisualStudio.Shell.11.0.dll)
Microsoft.VisualStudio.Shell.Interop.11.0 (in Microsoft.VisualStudio.Shell.Interop.11.0.dll)
Syntax
'Declaration
Function EvaluateExpression ( _
wszExpression As String, _
wszSymbols As String _
) As Boolean
bool EvaluateExpression(
string wszExpression,
string wszSymbols
)
bool EvaluateExpression(
[InAttribute] String^ wszExpression,
[InAttribute] String^ wszSymbols
)
abstract EvaluateExpression :
wszExpression:string *
wszSymbols:string -> bool
function EvaluateExpression(
wszExpression : String,
wszSymbols : String
) : boolean
Parameters
wszExpression
Type: System.String[in, unique] The expression to evaluate, for example, P1 & P2 & (!P3 | P4). Null and empty are allowed and results in a true return value.
wszSymbols
Type: System.String[in, unique] Space-delimited list of symbols that evaluate to true, using the same format as VSHPROPID_ProjectCapabilities. Null and empty are allowed and results in an empty set of project capabilities during evaluation.
Return Value
Type: System.Boolean
The result of the evaluation. true if the evaluation succeeded.
Remarks
Valid expression syntax is defined as:
The capability expression, such as "(VisualC | CSharp) + (MSTest | NUnit)".
The "|" is the OR operator.
The "&" and "+" characters are both AND operators.
The "!" character is the NOT operator.
Parentheses force evaluation precedence order.
A null or empty expression is evaluated as a match.
Project capabilities may be any character except these reserved characters: "'`:;,+-*/\!~|&%$@^()={}[]<>? \t\b\n\r
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.