问题
I have created one SSRS report having begin date and end date. If I provide end date< start date it will execute the report as shown in the image

But that condition I need to show a pop up "Please Check the start date and end date provided". How to do this?
回答1:
Click Report Menu then Report Properties.
Go to Code Tab
and add similar code as per your requirement:
Function CheckDateParameters(StartDate as Date, EndDate as Date) as Integer
Dim msg as String
msg = ""
If (StartDate > EndDate) Then
msg="Start Date should not be later than End Date"
End If
If msg <> "" Then
MsgBox(msg, 16, "Report Validation")
Err.Raise(6,Report) 'Raise an overflow
End If
End Function
And
Follow the Steps:
1.) Go the Report Parameters and add a parameter with the datatype is string.
2.) Check the Hidden checkbox and Allow blank value ckeckbox.
3.) From Default Values choose Non-Queried radio button and then press the FX button and paste this code.
=CODE.CheckDateParameters(.Value,.Value)
Then press OK.
See reference Link:
Easy Step by Step SSRS Parameter Validation Using Code & Conditional DataSet
回答2:
I'm answering this to chip in another possible solution when working with SQL/Server. If you just want to throw an error then simply amend your query SQL to raise an error on the SQL/Server side by adding something like this to the top of your SQL...
IF @ParEndDate < @ParStartDate
BEGIN
RAISERROR('Please check the start date and end date provided', 16, 1);
RETURN;
END;
The query won't run and the error message will be displayed in the report body.
来源:https://stackoverflow.com/questions/30477840/report-parameter-validation-in-ssrs-report