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Parameter with "Allow null value" and "Available values from dataset"

Thread ID:





123376 Mar 11,2016 01:56 PM UTC Mar 15,2016 12:09 PM UTC WPF 1
Tags: ReportViewer
Sergey Salnikov
Asked On March 11, 2016 01:56 PM UTC


I am new to the ReportViewer (and to all of Syncfusion components). Currently i see into it and try to use ReportViewer to render some of already existing reports in our project. All reports work fine via standard Report Manager in browser.
And i stuck with problem that ReportViewer does not include NULL-values in available values combobox for a parameter which fills from a dataset even when the parameters property "Allow null value" is set.

In attached ZIP i put the very simple project showing the problem, rdl report, rds for values of parameter, and two pictures - one for standard Report Manager rendering the report and second for ReportViewer.
Please, check this and recommend what i need to do to get NULLs available in combobox.

Thanks in advance,
Sergey Salnikov.

Attachment: NullParamIssue_f9544ca8.zip

Mariya Joseph M [Syncfusion]
Replied On March 15, 2016 12:09 PM UTC

Hi Sergey,

We considered this “ReportViewer does not include NULL-values in available values combobox” as an issue and a support incident has been created under your account to track the status of this requirement. Please log on to our support website to check for further updates.

Mariya Joseph M.


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