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Variable.Expression 속성

Gets or sets the expression contained in a variable.

네임스페이스:  Microsoft.SqlServer.Dts.Runtime
어셈블리:  Microsoft.SqlServer.ManagedDTS(Microsoft.SqlServer.ManagedDTS.dll)

구문

‘선언
Public Property Expression As String 
    Get 
    Set
‘사용 방법
Dim instance As Variable 
Dim value As String 

value = instance.Expression

instance.Expression = value
public string Expression { get; set; }
public:
property String^ Expression {
    String^ get ();
    void set (String^ value);
}
member Expression : string with get, set
function get Expression () : String 
function set Expression (value : String)

속성 값

유형: System.String
A String that contains the expression.

주의

The Expression method returns the expression entered in the value property only when the EvaluateAsExpression property is set to true; otherwise, an empty string is returned if false.

The following example sets the EvaluateAsExpression flag to show that the variable contains an expression, and then can use the Expression property.

static void Main(string[] args)
    {
        Package p = new Package();
        p.Variables.Add("x", false, "", 1);
        Variable v = p.Variables.Add("y", false, "", 1);
        v.Expression = "@x + 10";
        v.EvaluateAsExpression = true;
        if (v.Value.ToString() == "11")
            Console.WriteLine("Value was 11");
        else
            Console.WriteLine("Value was not 11");
    }
Shared  Sub Main(ByVal args() As String)
        Dim p As Package =  New Package() 
        p.Variables.Add("x", False, "", 1)
        Dim v As Variable =  p.Variables.Add("y",False,"",1) 
        v.Expression = "@x + 10"
        v.EvaluateAsExpression = True
        If v.Value.ToString() = "11" Then
            Console.WriteLine("Value was 11")
        Else 
            Console.WriteLine("Value was not 11")
        End If
End Sub

Sample Output:

Value was 11

참고 항목

참조

Variable 클래스

Microsoft.SqlServer.Dts.Runtime 네임스페이스