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https://stackoverflow.com/questions/6251431/dataset-does-not-support-system-nullable
Browse other questions tagged frameworks crystal-reports dataset entity nullable or ask your own question. Blog Podcast: TFW You Accidentally Delete Your Database. Copying code from Stack Overflow? You might paste security vulnerabilities, too ... DataSet does not support System.Nullable<> exception in c#. 47.
https://stackoverflow.com/questions/52983019/how-to-resolve-dataset-does-not-support-system-nullable
Crystal Reports' SetDataSource() method creates DataColumn supplied by list of ProductOrder, and then trying to build DataColumn instances that has nullable type, which is not supported. You should either create a viewmodel class which has properties with same base types but without nullable types present, then project the result with that class as data source:
https://stackoverflow.com/questions/19020453/nullable-types-in-crystal-report
A list of objects of above class (CustomerList) is set in data source of crystal report. rd.SetDataSource(rptSource); In crystal reports i am selecting the same class from database expert using .net Objects. Since i am using nullable variable i am getting the following error: "DataSet does not support System.Nullable<>."
https://social.msdn.microsoft.com/forums/en-US/9788f39c-2f3a-489d-8586-e7fc7c429e3b/crystal-does-not-support-systemnullable
Jun 19, 2008 · Crystal Reports does not accept Nullable types at this time. The solution used was to create a clone of the object and remove all nullable types making making sure null values translated into values that the resulting report would process and understand.
https://www.codeproject.com/questions/1021140/dataset-does-not-support-system-nullable
You are using LINQ to fetch records and bind list to report. It seems some column value is NULL in linq query which doesn't support dataset in report. In order to resolve your problem please use anonymous type and check null value of columns. var query = (from i in inven.InvoiceDetailwpfs select new { columnName1 = i.columnName1 ??
https://forums.asp.net/t/1809756.aspx?crystal+report+dataset+does+not+support+System+Nullable
Jun 08, 2012 · Hello guys, in my DB I have a field to be nullable, but crystal report return an error:"dataset does not support System.Nullable"
https://answers.sap.com/questions/9579739/dataset-does-not-support-systemnullable.html
I use Crystal Reports with Visual Studios 2010 (Crystal Reports for .Net Framework 4 not sure which version). Anyway I have some fields which can have Null values. I handle them using nullable pr
https://www.telerik.com/forums/dataset-does-not-support-system-nullable-lt-gt
Jul 25, 2009 · Join a community of over 2.6m developers to have your questions answered on DataSet does not support System.Nullable<> of Reporting Reporting. New here? Start with our free trials.
https://answers.sap.com/questions/4838081/crystal-reports-2008-does-not-support-linq-or-null.html
SetDataSource is designed to take a DataSet or DataTable object. I think someone mentioned to me that they managed to get an array object of some sort to work. As far as I know, no other objects (enumerations, lists, entities, tables that are not of type System.Data.DataTable, etc) are supported or have been hacked into working at this point.
https://bytes.com/topic/c-sharp/answers/514233-adding-nullable-datetime-column-datatable-does-not-work
Jul 22, 2006 · Adding a nullable datetime column to a datatable does not work. C# / C Sharp Forums on Bytes. ... Adding a nullable datetime column to a datatable does not work. P: n/a GG. I am trying to add a nullable datetime column to a datatable fails. I am getting exception DataSet does not support System.Nullable<>. None of these works dtSearchFromData ...
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