reporting services - SSRS. Specify dynamic links to reports via expression -

I'm making a report with Visual Studio 2013 with 1 report here Will be.

The report with the links of other reports is of the following design:

  [name] [description] [instances_Count]  

Need to create [name] clickable (add action on link with other report).

In the preview this is returning the following:

  This is a 1 report 3 two it has 2 reports 7 three is the 3 report 4  

I need to make sure that if clicked on one , it was redirected to report with the name report_1.rdl , If I click on the two at report_2.rdl

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I need to do something like this:

Right click on [name] > Properties > Action Check Go to report

And here's something I like to express:

  = switch (field! Details = value = "this is 1 report.", "Report_1.rdl")  

and it throws an error with the link I I can open the report, in the name of this case a is clickable, after clicking on it redirect to report_1.rdl , after clicking on View report ( report_1.rdl in redirection ) This throws the following error :

There was an error during local report processing.

Application error.

The object reference is not set to an instance of an object.

Do you have an idea to fix this error?

PS There is a problem in this expression if I directly link to any report, it is successfully redirected, it only throws the error when I am using this expression I am

First I try to leave the ".rdl" part of the report name in my expression Again I'm sure the expression is located in the "Specify Report" box in the Action tab for placeholder. If everything fails, try using