how do I reference a text box value in an expression? SSRS

Question

I have a list and inside this list I have a text box.

Since it's a list, the text box value changes for each row in the dataset.

OUTSIDE this list, I have another text box which is part of the HEADER.

I want the HEADER to change based on the value of the text box in the list.

In the text box in the header, how do I reference the text box inside the list?

Answer 1

To refer to any report objects you can use ReportItems Collection.

In your header textbox put a expression like this to refer to textbox in the list:

=ReportItems!TextBoxList1.Value 

Remember SSRS is case sensitive. Make sure you get the right name of the text box object you are referring to.

MSDN article on ReportItems