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

Hi,

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

1 Reply

MJ Mariya Joseph M Syncfusion Team 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.
https://www.syncfusion.com/account/login?ReturnUrl=/support/directtrac/incidents

Regards,
Mariya Joseph M.

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