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Hello Ahmet,
In general, the purpose of the ObjectDataSource component is to provide data to the report in a declarative manner. The ObjectDataSource.DataSource should be the assembly qualified name or Type of the data access layer (class), where the reporting engine will use System.Reflection to create the instance of the class (by using its default constructor) and to execute its method specified by the ObjectDataSource.DataMember.
Having the above into account, the data access layer must have a default parameterless constructor in order to be instantiated.
In case it is a data model created via Entity Framework, please consider switching to the EntityDataSource component.
Regards,
Stef
Telerik
In general, the purpose of the ObjectDataSource component is to provide data to the report in a declarative manner. The ObjectDataSource.DataSource should be the assembly qualified name or Type of the data access layer (class), where the reporting engine will use System.Reflection to create the instance of the class (by using its default constructor) and to execute its method specified by the ObjectDataSource.DataMember.
Having the above into account, the data access layer must have a default parameterless constructor in order to be instantiated.
In case it is a data model created via Entity Framework, please consider switching to the EntityDataSource component.
Regards,
Stef
Telerik
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