Filter value adds quotation to my set value

Question

This is happening to me from time to time and I am curious if it is a known bug. (SQL2012)
I created a filter on my tablix to filter certain text values from my dataset. For example, I have a device_family column and this is a text value. Sometimes it is a family A sometimes B, C and so on.
On my tablix, I created a filter for the family column and used "IN"; and the expression is as follows: "A", "B", "C"
Note: I did not use any "=" at the beginning.
From time to time, this filter expression turns into this: """A""", """B""", """C"""
This is affecting my report. I can fix it manually by going under the tablix and fix the properties but even if I save my work, there is no guarantee that it will not happen again.
Is this a bug or I am doing something wrong? Thanks,

Answer 1

Hi Masavran,
Based on your description, you are experiencing the problem that the Filter values add quotation automatically whiling add a filter to the “Device_fanmily” column, right?
I have tested it on my local environment, we can reproduce this issue. Based on my research, there are two workarounds to avoid this issue. One is using Split function on the value textbox. Another one is using parameter on the value textbox. The steps below
are for your reference.
Method One
Replace the filter value(“A”,”B”,”C”)  by using an expression
=split(“A,B,C”,”,”)
Method Two
Right click the Parameters in the Report Data to select the “Add Parameter”.
In the Name and Prompt textbox type: DeviceFamily.
Select the “Allow multiple values” and “Hidden” check box.
In the left pane, Click “Available Values” to add available values for the Parameter.
In the left pane, Click “Default Values” to add default values for the Parameter.
Right click “Tablix Properties” and select “Filters”.
Click Add and In the Operator dropdown-list select “In” ,In the Value textbox type:[@DeviceFamily].
If you still have any question, please feel free to ask.
Regards,
Charlie Liao
TechNet Community Support