OK, that is not going to work. Your tMap variables work on a basis of an expression assigned to the variable name. You cannot assign a value inside the expression (unless you are using a routine). Try using a tJavaFlex to assign the context variable like that.
But another very important thing to keep in mind is that file input and output components are intialized when the SubJob starts. So your context variable value MUST be assigned before the SubJob with the Excel file component is started.
So, create a SubJob to assign your context variable then join that SubJob to another SubJob (using OnSubJobOk) where the file is written to.
OK, that is not going to work. Your tMap variables work on a basis of an expression assigned to the variable name. You cannot assign a value inside the expression (unless you are using a routine). Try using a tJavaFlex to assign the context variable like that.
But another very important thing to keep in mind is that file input and output components are intialized when the SubJob starts. So your context variable value MUST be assigned before the SubJob with the Excel file component is started.
So, create a SubJob to assign your context variable then join that SubJob to another SubJob (using OnSubJobOk) where the file is written to.
