Building a report in VS2013. I have a parameter that needs to be able to be null. I can successfully run the report in the query builder, with a null parameter value. But if I run the report in preview or deployed, there is no NULL check box next to the parameter select, so it demands a value.
My stored proc has an optional parameter and it is coded to accept null in the where clause:
spAccomplishedSummaryGet #BurnType char = NULL
...
AND ((r.BurnType = #BurnType) OR #BurnType IS NULL)
The burn type parameter gets its values from a query. I have selected "allow null"
I'm sure I can add a 'null' value to the burntype list, but before I do that I wanted to see if there is a better way.
You need to allow null values against that parameter in SSRS report, and optionally assign null to that parameters as well. Please look at the following steps.
Navigate to "Report Data" option in your SSRS report
under "Parameters" you will see all the parameters that your stored procedure will be demanding, open the parameter properties of that particular parameter which you wish to pass null value (right click on parameter and select option "Parameter Properties").
In the new window under that "General" tab, check the option "Allow null value"
Click here in case of ambiguity
I have had similar issues especially when setting up subscriptions where it requires a value for a parameter that should be able to be left NULL. Rather than using NULL to ignore the parameter, consider using an "All" value in your list of available values. You can easily change the where clause to account for that:
AND (r.BurnType = #BurnType OR #BurnType = 'All')
I have found that this is actually more user-friendly than having a checkbox to essentially disable a parameter.
Related
I created a parameter [GroupID] that is used to query several datasets in my SSRS report. It is using the field [GroupID] from my GroupList_Rolling12 dataset. An example of [GroupID] is 77610N. When 77610N is selected, all of my datasets are correctly 'filtering' for this [GroupID].
I now need to create a text box that returns the [GroupName] of [GroupID]. In other words, when 77610N is selected from my GroupID parameter, I want the [GroupName] that is associated with the selected GroupID parameter to display.
I'm still very new to SSRS and cannot figure this out. I tried creating the expression =First(Fields!GroupName.Value, "GroupList_Rolling12") but that did not work since it simply returns the first value from the query.
I also tried =First(Parameters!GroupID.Value(0)) but this also did not work
I also tried this expression =Lookup(Fields!GroupID.Value, Fields!GroupID.Value, Fields!GroupName.Value, "GroupList_Rolling12")
)
Can you please help?
You can reference the parameter label directly like this
=Parameters!GroupID.Label
There is no need to put the index on the end (=Parameters!GroupID.Label(0)) unless your parameter is multi-value, in which case it would select the first selected entry.
In my report, i have created a xxx parameter which takes values from the report data set.
xxx parameter is not being passed to stored proc which is used to show the data for the report.
Now When the report does not have any data for other parameters, i get an error saying xxx parameter is missing a value.
I tried allowing blank values in the parameter properties.
Check that parameter's - Available Values by going to report parameters properties.
It must not be specified any values. So we should set it as None
Another way is,
Just add a blank space at Specify values - in Default values inside report parameters properties.
Third way
Ido an "if exists" statement for this to go away. It worked for me because it makes it always return a value even if that value is not need by my query.
if exists (my select query)
my select query
else
select '2'
// '2' would never be used, but it made ssrs stop giving me
// the stupid error and execute
This should help.
I want to use Telerik report in project, and want to use a stored-Procedure as data source. So, I should make a report in Telerik Report Designer in first step (my problem), and then use it in my Asp.net project.
I exactly used the (wizard) approach to make data source and parameters, mentioned in Telerik documentations, but there is a problem:
The report passes only the default parameter defined on design time, and when I change the parameter value in preview mode, it doesn't be passed to SP. If I set no default value for my parameters, the SP would be call by null values, always. It seems there is no mapping between input textboxes and the parameters are be sent to SP.
Is there anybody had the same experience, that can help me?
UPDATE:
What I did:
create new blank report in Telerik Report Designer R1 2017
From Data tab, Select SQL Data Source,select the proper SP from an Existing Data connection, leave the parameters default value empty and then execute...and finish.
In Report Explorer window, right click on Parameters, and add new parameter with the name and data type of stored procedure parameter. Change it's visibility to true, without any value.
From Home tab, select the preview and checked the SQL Profiler for db calls tracking. The Sp is called by null values at first time, but even when I change the parameter value in preview mode, again the SP is called by null parameter values.
In design time, after selecting your SP as data source, you will see the Configure Data Source Parameters.
In this window, you see your SP's parameters with value types. In Value column, click each row and select <New Report Parameter> and then select the parameter. The value will be change to proper value, for example:
= <Parameters.CustomerNumber.Value>
And this will work correctly. The problem was the 3th. step in question above. (adding the parameters, manually)
I have an SSRs Report with a parameter that gets information from SQL. If it hasn't found anything, at the moment it is just empty. Is there anyway to set it such that if it's empty it will return a different value, say "Please Extend Date Ranges" and disable the parameter?
If you using it to fill it using the SQL and using it for only internal purposes then there is option to make the parameter internal and it will be hidden and it will does not prompt the user.
Make a change to the stored procedure or query that populates the parameter. Include some logic so that if no results are returned by the query you are using now, it adds a row with the default label you want.
But no, you can't disable the parameter dynamically, I don't believe.
I am creating a report in SSRS 2005 and where there should be a NULL value in the table it is returning a value ("Alle" [the tables are mostly in German]). This isn't really a problem as I think I can hide the value as explained here:
How to hide certain on SQL Reporting Services 2005
However, when I add =Replace(Fields!LengthofFunding.Value,"Alle","") to the Expression box in the field I want to hide the value for it is returning a FALSE value rather than a blank.
Can anyone let me know how I can make this field return a blank value?
I think instead of replace you can use the Iif as following:
=Iif(Fields!LengthofFunding.Value = "Alle", " " , Fields!LengthofFunding.Value )
This means if its equal to "Alle" replace with blank, else keep the original value.