How to prevent parameter error for NULL dataset? - reporting-services

I developed an RDL file with a parameter set to be the field value, named "Client", of one of my datasets. I use this parameter value in the page footer because this was the only way I could get Client to appear correctly in the footer. The other methods Client value did not always appear correctly.
Here is what this parameter properties look like:
So this works if there is data, however, if there are no records in rpt_rd_RecreationTherapy, then I get the following error:
and in my page footer, I have a text box set to the following:
=iif(isnothing(Parameters!new_youth.Value),"",Parameters!new_youth.Value)
Yes, I checked "allow blank value" to my parameter configuration

Jeroen is probably correct. I would access the Reports, Parameter setting using Report Manager and update it to match the BIDS setting.

Related

Read query string parameter value in SSRS Report

I have passed one parameter to report server url.
http://<your server>/ReportServer?/<folder>/<reportname>&UserID=Name
How can I read UserID value in report.
Or
How can I print this value in any of the textbox to check what is passed to it?
For example: Above url should show 'Name'.
Based on your comments I think you've figured this out already, but all you should need is the parameter UserId to exist on the report and it will get its value from the query string.
A couple other problems that can crop up when trying to pass a parameter:
Report parameters are case sensitive
Report parameters with visibility set to Internal can't be passed a value through URL
See also: Pass a report parameter within a URL on MSDN
You can try with the Built-In SSRS fields ...
Try using Expression -> Built-In-Fields -> UserId should work in this case, if I understood your question correctly...
OR
Try manipulating the report server URL. Provided below one for example ...
=mid(Globals!ReportServerUrl , InStr(Globals!ReportServerUrl,"&UserID=")+8)
Issue was with my parameter UserId.
I have set it as Internal that's why it was set to default value blank space instead of passed parameter UserId value. (Now I am using hidden)
Note: Report parameters are case sensitive so in my case it must be UserId

Call SSRS by URL pass parameter by label

There is a SSRS report, with one parameter, I only know its label not the values. So how can I get the report by URL? I know how to render a report with all the parameters set by defaults to Excel. But this report has the parameter not set to default, so I have to manually select a value then run in report manager. And important thing is I don't know the available values for this parameter as I have only browser permission. So can't download rdl, can see the parameters etc as you can imagine. The url method seems only allow you to pass parameter value not parameter label. So is there anyway?
No, there is no way to do that. You must use the parameter value in the URL, you cannot use the label (unless value and label happen to be the same).
If you don't have access to the report definition then you will need to find someone who does, who can then find where the parameter values are defined and tell you what they are.

How do I get an RDLC report to run report custom code?

I have an RDLC report in VS 2013 that has two distinct sections. I'd like to show a footer only in the first section. To do this, I have a report variable called IsFirstSection that is set to "True". In my footer I have an if statement that displays text if this variable = "True".
Before the second section is displayed on the report I would like to set this variable to false. To do this, I have a function in the report custom code called SetVariableValue that takes a variable and a value and does just that. I have a text box before the second section that calls this function with Code.SetVariableValue(Variables!IsFirstSection, "False"). However, this code doesn't seem to be executing as IsFirstSection is still "True".
When I do this exact set up in an RDL report it works correctly. I even tried making a custom code function in the RDLC that just returns a string and when I call it from a text box expression nothing is displayed. How can I get the RDLC to run report custom code?
A Report Variable seems a poor choice for this requirement. It's probably just chance that it appears to work under some conditions. Some quotes from the doco:
"By default, a report variable is calculated once ..."
"You cannot control when the report processor initializes a variable or evaluates an expression that updates a variable."
https://msdn.microsoft.com/en-us/dd255208.aspx
I would use a ReportItems reference instead. This would likely point at a textbox which presents field that changes value between "sections".

SSRS Null Hidden Parameter in SharePoint Integrated Mode

I have a report (call it Report A) that was built using only the User!UserId to generate appropriate data for that person. This worked perfectly.
The feature was requested to be able to view other people's data through Report A, based upon security inside the underlying stored proc. I updated Report A to include a new parameter, EmployeeId, and created a new front screen report that has a "Go To Report" action, passing the EmployeeId. The Stored Proc takes both the UserId and EmployeeId, and returns the data for the requested employee, if the User has permission to see the data. This also works perfectly.
I set the EmployeeId parameter to be hidden, and a default value of null. This was to allow anyone who comes directly to Report A to be able to run for their data (no impersonation), as they are used to. Running from within BIDS, it works, but once I publish to SharePoint, I get:
"The report is missing a parameter value but prompting for it has been disabled."
I obviously don't want to prompt for the parameter, and value should be null in this case. Does SharePoint integrated mode not allow for hidden and null parameters?
In SSRS 2008 with Sharepoint, you need to prefix each parameter passed in the URL with "rp:". For example: URL.../RSViewerPage.aspx?rv:RelativeReportUrl=/TestReports/Orders.rdl&rs:Command=Render&rp:CLordID=1324381
From this MSDN page, it looks as though you may need to explicitly override the parameter value to set it to be null in the Manage Parameters dialog within the library/folder containing the report.

Parameter missing a value

I am new to reporting services and have a reporting services 2005 report that I am working on to use as a base report template for our organization. I am trying to place the date that the report was last modified on the report server into the page header of the report. However, I keep getting a 'ParamX' parameter is missing a value error when I try to This is what I have done:
Set up a Parameter ReportName with a default value of Globals!ReportName. It is also hidden and internal.
Set up a Dataset ReportHeader that calls a stored procedure that returns the date the report was last updated or another date, if the report is not on the report server. It has a parameter #ReportName assigned to the Parameter!ReportName.Value. The Dataset returns values when run on the dataset tab in the BI tool.
Set up a Parameter ReportVersion that has a default value Query From based on the dataset ReportHeader and picking the ModDate column. It is the last parameter in the report parameters list.
I assign a textbox to the parameter.
When I preview, I get "The 'ReportVersion' parameter is missing a value whether I place it in the report body or page header (which is where I want it). I have deleted and added the parameter again, toyed with the hidden and internal settings on it.
What does this error really mean, what I am missing, and can I even do this with parameters?
Thanks In Advance
Jim
If I understand what you're doing, it sounds like you want to be using a field where you're implementing a parameter...
You are returning the ModDate from the data source, correct? If you're doing this, you can simply throw a text box in there, and use something like this: =Fields!modDate.Value to display it.
Parameters are values that go in to the query, fields are what it returns.
Hope this helps...
EDIT:: OK so are you trying to retrieve the mod-date column value from the reportserver db? If that's what we're talking about, you'll need to add a few things to the report. Add a datasource to report db, a dataset containing the date (query below), a list object in the report linked to the dataset, and a textbox in said list object to display the field. If you hit the report server with a query like this:
SELECT MAX(ModifiedDate) AS ModDate FROM catalog WHERE name='myReportName'
That will return your modifieddate from the ReportSErvices Database as a field that you can use.