Метод ExpressionNode.Parse (String)

Parses the specified expression string.

Пространство имен:  Microsoft.SqlServer.Management.Dmf
Сборка:  Microsoft.SqlServer.Dmf (в Microsoft.SqlServer.Dmf.dll)

Синтаксис

'Декларация
Public Shared Function Parse ( _
    input As String _
) As ExpressionNode
'Применение
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

Параметры

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

Возвращаемое значение

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

Замечания

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]

Примечание
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

Примеры

C#

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

См. также

Справочник

ExpressionNode Класс

Перегрузка Parse

Пространство имен Microsoft.SqlServer.Management.Dmf