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.
예
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