Sharepoint list Person column type to remove the comma demiliter

I have a ssrs 2008 r2 report that uses sharepoint 2010 list as data source.My issue is that I have a column Assigned to as person type column and it is sharepoint account name first name, last name. I am using this column as parameter in the report. In the report parameter it shows first name,last name and user is getting confused in selecting. Is there anyway that I can get rid of the comma in the account name (first name, last name) so that i can use full name in parameter.
Please find attached the rdl file for your refrence.I have used custom code to remove the duplicate records in parameters.can anyone guide me in removing the comma delimiter. Thank you in advance.
CommaDelimiter.png
HelpCentreStatusReport-Deve-oct23.rdl
asrithapAsked:
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Jayaraja JayaramanSharepoint Architect ConsultantCommented:
you can use either internal name or the display name of the user which mean, login user account or the login name for the report. if you wanna exclusively remove comma, use custom text replace of "," to " " and populate
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