SSRS - Checking whether the data is null

Question

I ve the following expression in my report    FormatNumber MAX Fields Reading Value   CellReading Reading   3    Now when the dataset is empty  Fields Reading Value  becomes empty and finding their maximum is invalid  How can i check if the entire column is empty   I tried the following with no luck    iif IsNothing Fields  Reading Value     FormatNumber MAX Fields Reading Value   CellReading Reading   3     But still i m getting  Error in the report  I also checked out link and was not able to get a clue from it  I want to handle it in the report level

User · Answer

Or in your SQL query wrap that field with IsNull or Coalesce  SQL Server    Either way works  I like to put that logic in the query so the report has to do less

User · Answer

try like this    IIF  MAX  iif  IsNothing Fields  Reading Value    -1  Fields  Reading Value       -1       FormatNumber   MAX  iif  IsNothing Fields  Reading Value    -1  Fields  Reading Value     CellReading Reading   3

[reporting-services] SSRS - Checking whether the data is null

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