Metodo ExpressionNode.Parse (String)

Parses the specified expression string.

Spazio dei nomi  Microsoft.SqlServer.Management.Dmf
Assembly:  Microsoft.SqlServer.Dmf (in Microsoft.SqlServer.Dmf.dll)

Sintassi

'Dichiarazione
Public Shared Function Parse ( _
    input As String _
) As ExpressionNode
'Utilizzo
Dim input As String 
Dim returnValue As ExpressionNode 

returnValue = ExpressionNode.Parse(input)

public static ExpressionNode Parse(
    string input
)

public:
static ExpressionNode^ Parse(
    String^ input
)

static member Parse : 
        input:string -> ExpressionNode

public static function Parse(
    input : String
) : ExpressionNode

Parametri

• input
  Tipo: System.String
  A String value that specifies the string to be parsed.

Valore restituito

Tipo: Microsoft.SqlServer.Management.Dmf.ExpressionNode
An ExpressionNode object value that specifies part of an expression.

Osservazioni

Depending on the type of expression the object assigns the appropriate type when parsing. For example, the ExecuteSql statement specifies a function. If the expression contains a function then the Type property is set to Function.

The expression must conform to the Transact-SQL expression syntax:

property comparison_operator constantList

where

property: one of the facet properties

comparison_operator: = != > >= < <= [NOT]LIKE [NOT]IN

constantList: constant [, constantList]

[!NOTA]

The Like operator uses the Transact-SQL syntax.

The expression can be extended using logical operators:

condition_expression logical_operator condition_expression

where

logical_operator: AND OR

Esempi

C#

string expressionStr = "ExecuteSql('Numeric','SELECT 1')";
ExpressionNode node = ExpressionNode.Parse (expressionStr);
TestAssertion.IsTrue (node.Type == ExpressionNodeType.Function, "Should be function");

Vedere anche

Riferimento

ExpressionNode Classe

Overload Parse

Spazio dei nomi Microsoft.SqlServer.Management.Dmf