I have a rectangle.
I want to hide it if a field (X) is NOT NULL.
I tried this but it is not working:
=IIF(NOT IsNothing(Fields!filepath.Value), 1, 0)
I get the error:
An error occurred during local report processing.
The Hidden expression used in rectangle 'ID2398' returned a data type that is not valid.
Anyone know why I'm having this issue?
Do I need to place the actual field onto the report? I tried it but I keep getting the same error.
If you're using that for the Visibility expression, I believe you need to explicitly use True/False rather than 1 or 0. So try:
=IIF(NOT IsNothing(Fields!filepath.Value), True, False)
I do prefer to use =iff(Fields!filepath.Value IsNot Nothing, Fields!filepath.Value, ) in Textbox/Properties/Visibility/Hide as it is more intuitive for me.
Related
This SO link, WHERE Caluse in SSRS expression, verifies that my syntax is correct yet I get this error:
"An error occurred during local report processing.
The definition of the report is invalid.
The Value expression for the text box 'txt1A_EMA' uses an aggregate expression without a scope. A scope is required for all aggregates used outside of a data region unless the report contains exactly one dataset."
My expression:
=Sum(IIF((Fields!COU_EMA.Value, "CA_Summary") = 1, (Fields!Amount.Value, "CA_Summary"), 0))
There are 3 Datasets in my report. The one I want is "CA_Summary" and the expression above was built with the expression builder.
The field, (Fields!COU_EMA.Value, "CA_Summary"), is a boolean (1 or 0) and I get error either with a 1 or a "true" (no quotes).
I probably could fix it if I knew what the definition of "scope" is. . . maybe.
The scope is where you want to look in order to get the values you're looking for. It could be a data set, group, etc. In your expression it appears CA_Summary is the scope.
I would try modifying the expression a bit. Since you say COU_EMA is bit field, maybe use TRUE. This is also assuming the matrix is using the data set CA_Summary.
=Sum(IIF(Fields!COU_EMA.Value = TRUE, Fields!Amount.Value, 0))
If your matrix isn't using that data set and it still doesn't work try
=Sum(IIF(Fields!COU_EMA.Value = TRUE, Fields!Amount.Value, 0),"CA_Summary")
I am facing very simple issue but not getting solution over it.
I have textbox in my ssrs report, I am passing value "1;prashant" or null to it. Now, if I pass value "1;prashant" to textbox then textbox should show only "prashant" and If I am passing nothing then it should be blank.
I have tried following IIF condition:
=IIF(IsNothing(FieldS!WIAPPORVER.Value),"",Split(Fields!WIAPPORVER.Value,"#")(1).ToString())
But, I above code is giving an error ["#error" shows in textbox] if I am passing blank value.
Please let me know, where I am wrong in this.
Thanks
There are probably better ways of doing this, but this is what my head came up with at the time:
=IIF(
IsNothing(Fields!WIAPPROVER.Value)
,""
,Right(Fields!WIAPPROVER.Value,Len(Fields!WIAPPROVER.Value) -InStr(Fields!WIAPPROVER.Value,";"))
)
I believe SSRS is trying to compute everything in the report at runtime, so in your case it is still trying to fetch index 1 from an array even though there is nothing in it and it crashes.
Edit: Changed parameters to Fields. I created a parameter to remake the issue at my side.
Just get the split out of the iif. Then in your iif, if field is nothing create a string that when split will return ""
=Split(IIF(IsNothing(FieldS!WIAPPORVER.Value),"#", Fields!WIAPPORVER.Value),"#")(1)
You are relying on the IIf expression short circuiting, but SSRS IIf expressions do not short circuit - the expression will try and work out Split(Fields!WIAPPORVER.Value,"#")(1).ToString() for all rows and fail when this value doesn't exist.
You can get this going by using text expressions, which don't get this error.
With test data:
And a simple table:
I have added columns with both your existing expression and a new expression:
=Right(Fields!WIAPPORVER.Value, Len(Fields!WIAPPORVER.Value) - InStr(Fields!WIAPPORVER.Value, "#"))
This new expression works for NULL values, empty strings and strings with no delimiter present:
In my report, I have an expression which is used to pass a parameter to a child report parameter which is set to allow null values. The expression is :
=IIf(Parameters!Lead.Value = "False",Nothing,Fields!Paid.Value)
The above expression returns values only when Fields!Paid.Value is not blank. Therefore when Fields!Paid.Value is blank I get an error
"the value provided for the report parameter is not valid"
How do I modify my expression to parse these two conflicting issues?
What I want is to be able to return values when the Fields!Paid.Value is blank or when it is not. So at all time when the expression runs corresponding values are returned without the error stated above.
Thanks for helping out.
The first thing you do, wherever you have used the "Paid" parameter, set it to allow null value. Allow null only not blank.
The second thing about the expression, use something like this,
=IIF(Parameters!Lead.Value "FALSE", Nothing, IIF(IsNothing(Fields!Paid.Value),0,Fields!Paid.Value)
SQL Server 2008 R2, using BIDS to design the report.
I have a table and I am trying to only show a certain row. Maybe there are better ways to do this, but I am coming across an error with the filter expression and regardless of how I achieve my initial task, I'd like to understand the filtering.
I started with the filter expression (set to type "Integer"):
RowNumber(Nothing) = 1
This gave the error:
Cannot compare data of types System.String and System.Int32.
I found the solution to this is to change the 1 to "=1" as 1 is evaluated as a string.
So I then had:
RowNumber(Nothing) = =1
That changed nothing, I got the same error.
Then I tried to do that to the first part of the expression:
=RowNumber(Nothing) = =1
This changed the error to a deployment problem (still builds, which is frustrating):
Error pvInvalidDefinition : The definition of the report '/ReportName' is invalid.
I then tried using CInt on RowNumber:
CInt(RowNumber(Nothing) = =1
Then I can deploy it, but the error just changes back to the first one:
Cannot compare data of types System.String and System.Int32.
It seems no matter what I try here I either can't deploy the report or I get an error that I'm comparing a string to an int.
RowNumber returns an integer, so it seems like this should work. I've tried using the name of the dataset in place of "Nothing" but that doesn't change what I'm seeing.
I realize there are many ways to solve my initial problem, but I am curious as to why the filter expression is invalid.
Its better to hide a row with visibilty property. Just click on any text box and go to visibily tab . You can now click on show or hode and go to expression.
That default to Hide . So write an expression there to hide the row.
=IIf(NOT(RowNumber = 1),TRUE,FALSE)
Let me know if you get any error
RowNumber is not available to use in a Tablix Filter.
Using RowNumber(Nothing) <> 1 as a Row visibility property fixed the issue.
Using BIDS you are not given any error that indicates what the problem is, but importing the report to Report Builder and deploying it from there will give a more descriptive error that, in the end, helped me to solve my problem.
I have a textbox in my SSRS 2005 report. The expresssion for this textbox is:
=IIF(IsDBNull(Fields!fOrgID), Code.SetMyVar("null"), Code.SetMyVar(Fields!fOrgID.Value))
I have also tried IsNothing(Fields!fOrgID) and a few other variations of checking for nulls.
I have modified the SetMyVar function for testing and it now looks like this:
Public Function SetMyVar (var as String)
MsgBox(var, VbOKCancel, "Test1")
If var Is Nothing Then
Return "NOTHING"
Else
MyVar = var
Return var
End If
End Function
I also have the public variable MyVar:
Public Shared Dim MyVar as String
When my database query returns data, this correctly evaluates, a messagebox is displayed with the value, the textbox gets set with the value, and the world is generally a happier place.
When my database query does not return a value though, I get the error:
The query returned no rows for the data set. The expression therefore
evaluates to null.
and the SetMyVar function never appears to be ran (you never get the messagebox popup). As expected, my emotions range from anger, sadness, and bitter hatred of SSRS.
I read something about SSRS evaluating both sides of an IF statement, so perhaps that is why I get the error (likely then on Code.SetMyVar(Fields!fOrgID.Value))... not sure how I get around that though.
Thoughts? Suggestions? Words of comfort?
From the sound of things, it seems likely that the issue is that SSRS is having a problem displaying zero records. I'd recommend one of the following:
1) Use a control that handles zero records appropriately (Tables do. I think Lists do as well).
2) Modify your query to return a single record with blank values if it would otherwise return zero records.
An answer to the original question:
=IIF(IsNothing(Fields!fOrgID),
Code.SetMyVar("null"),
Code.SetMyVar(IIF(IsNothing(Fields!fOrgID),"Foo",Fields!fOrgID.Value)))
The error was from both sides of IIF being evaluated. The extra IIF in the statement above will avoid Code.SetMyVar from ever being called with a null value.
I believe you're right about about Iif always evaluating both of its value arguments (at least, it does in Visual Basic). I'm not sure why you're getting this precise error (unless strings can't be assigned a value of DBNull?), but you almost certainly want to attack this problem with a different method.
The reason for this is that your current code will likely always call both set methods regardless of the conditional value.
Formula that worked for my SSRS 2008 reports.
=IIf(String.IsNullOrEmpty(Fields!NullableFieldwithPossibleBlankStrings.Value),"Yes","No")
I tried this too (also tried a version with IsNothing)...
=Code.SetField(IsDBNull(Fields!fOrgID))
And changed the function to be one that accepts a boolean. I figure this above function would always return a true or false, but in the event of a NULL, I again get "The query returned no rows for the data set. The expression therefore evaluates to null.".
I need to pass back to my code if the field is null or not (as this will let me know if the datasource is null or not).
Let me know if you can think of a better way because I cannot.