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https://stackoverflow.com/questions/23233295/dataset-does-not-support-system-nullable-in-export
The type 'string' must be a non-nullable type in order to use it as parameter T in the generic type or method 'System.Nullable<T>' 1 Joining Two DataTables — DataSet does not support System.Nullable<>
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. Here it is checking null value and assigning some blank value to it.
https://forums.asp.net/t/1796259.aspx?how+to+solve+this+DataSet+does+not+support+System+Nullable+
Apr 24, 2012 · DataTable b= CollectionHelper.ConvertTo(a); i get: DataSet does not support System.Nullable<>. in a previous project in worked ok, but now i get this. Re: how to solve this: DataSet does not support System.Nullable<>. Nullable.GetUnderlyingType, and perhaps change a few null values to DbNull.Value...
https://answers.sap.com/questions/9579739/
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://social.msdn.microsoft.com/Forums/en-US/55064dee-7e6b-40ca-80ff-43e96675b65c/dataset-does-not-support-systemnullable-while-converting-dlinq-query-result-to-datatable
Feb 09, 2011 · DataSet does not support System.Nullable while converting dlinq query result to datatable
https://www.telerik.com/forums/dataset-does-not-support-system-nullable-lt-gt
Jul 25, 2009 · DataSet does not support System.Nullable<>. If possible I'll try and organise a unit test in a ticket if I can understand what is causing the fault.
https://answers.sap.com/questions/12057090/dataset-does-not-support-systemnullable.html
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<>.2/5
https://bytes.com/topic/c-sharp/answers/514233-adding-nullable-datetime-column-datatable-does-not-work
Jul 22, 2006 · Nullable<DateTime>. >I am trying to add a nullable datetime column to a datatable fails. DataSet does not support System.Nullable<>. So, there's no need to create the original column with a nullable type. Just supply the non-nullable version of the type.
https://docs.microsoft.com/en-us/dotnet/api/system.nullable-1
The Nullable class supports obtaining the underlying type of a nullable type, and comparison and equality operations on pairs of nullable types whose underlying value type does not support generic comparison and equality operations.
https://www.experts-exchange.com/questions/23575395/DataSet-does-not-support-System-Nullable-error.html
DataSet does not support System.Nullable<> in this line: DataTable table = CreateTable<T>(); where T is simple class which has a constructor and some of the constructor paramaters are nullable types. I don't want to change the class. I am using the CreateTable function …
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