DataSet does not support System.Nullable<>.

[Former Member]

Good day sir. i am design my project with asp.net with mvc technology. i use crystal report for visual studio (CRforVS_13_0_15) to design my report. When i try to preview my report i have a message "DataSet does not support System.Nullable<>." when i add the datasource to my crystal report document (

Line 488: rptH.SetDataSource(model);

). i declare model as a list of object like this : "List<object> model = new List<object>();"

i am using C# language.

Please somebody can help me to understand what happend and help me to have a solution.

Thank

[Former Member · Accepted solution]

good day sir.

Thnak for ure reply. but i solv my problem.

The issue was that in my Datasource was have a null datetime.

So went i send the good datasource, my preview was ok.

Thank

[former_member11696]

Did you design the report to have that dataset already?

If not it needs an object to assign the data to.

Go to the Overview Tab and click on the link for sample applications, in there you will find samples to add a data source to a report using RAS.

Don