External variable and ExternalVariableReference T

Question

Hi everybody I have a problem writing External variable from workflows; I've found example about ExternalVariableReference<T> but to use it I need to edit the xaml and to use "fixed" name and type of the external variable:
<Assign>
 <Assign.To>
   <OutArgument x:TypeArguments="p:DynamicValue">
  <p:ExternalVariableReference x:TypeArguments="p:DynamicValue" Name="EXTERNALVARIABLENAME" />
   </OutArgument>
 </Assign.To>
 <Assign.Value>
   <InArgument x:TypeArguments="p:DynamicValue">
  <mca:CSharpValue x:TypeArguments="p:DynamicValue">DYNAMICVARIABLE</mca:CSharpValue>
   </InArgument>
 </Assign.Value>
</Assign>
in this example I assign the variable DYNAMICVARIABLE of type DynamicValue to an external variable named EXTERNALVARIABLENAME (of course of type DynamicValue). My problem is that I need to to this using the designer...so what I need is an activity that I
can use in the designer where I can specify the name and the type of the external variable. I've try to implement it by myself but without success :(
Does anyone have an example or any idea about it?

Answer 1

Hi,
It works for me
SQL> set define '&'
SQL> SELECT &column_name FROM emp;
Enter value for column_name: EMPNO
old   1: SELECT &column_name FROM emp
new   1: SELECT EMPNO FROM emp
     EMPNO
      7369
      7499
      7521
      7566
      7654
      7698
      7782
      7788
      7839
      7844
      7876
     EMPNO
      7900
      7902
      7934
14 rows selected.
SQL>Regards,
Jari