Multiple parameter values in expression

I know I have done it before (at a different company) but how do Include all of my multi selections in an expression for a report title? The parametercomes back
=Parameters!Branch.Value(0)> I know it's an array but can't remember how its done.
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Megan BrooksSQL Server ConsultantCommented:
A mult-value parameter returns an array of strings for Parameters!xxx.Value instead of a single string. You can join the strings in the array together using Join(), or for something more elaborate you could call a function in custom code that iterated through the array.
Laura2112Author Commented:
seems like solution I have seen before took the (0) into consideration and maybe have concatenated ',' somewhere in the expression instead of the array location. Sound familiar at all ?
Megan BrooksSQL Server ConsultantCommented:
I don't know if I have seen this elsewhere, but I have code in my current reports to join parameter values or iterate through them. Here is an example of Join():

=Join(Parameters!ReportParameter1.Value, ", ")

This constructs a comma-separated list of the selected values of the parameter. You can also make a list of the selected parameter labels:

=Join(Parameters!ReportParameter1.Label, ", ")

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