Trouble binding ObjectDataSource to custom class in programmatically created report

[Jim]

Hello Telerik team,

I’m trying to create a simple Telerik report programmatically and bind data from a custom class using an ObjectDataSource. My class has a method GetCustomers() that returns a collection of items.

Simplified setup:

var report = new Telerik.Reporting.Report();

var objectDataSource = new Telerik.Reporting.ObjectDataSource();
objectDataSource.DataSource = typeof(CustomerDetailedModel);
objectDataSource.DataMember = "GetCustomers"; // returns IEnumerable<CustomerDetailedModel>

report.DataSource = objectDataSource;

I’ve also tried leaving DataMember

unset, but I still get an error related to assembly trust or type resolution, e.g.,

“The type or namespace ‘CustomerDetailedModel’ could not be found, or the assembly is not trusted.”

I’ve tried:

• Adding the DLL via AssemblyRef.FromFile

• Placing the DLL in the application output folder

• Using AppDomain.CurrentDomain.AssemblyResolve

• Configuring assembly references in appsettings.json

Despite this, the report cannot resolve the type at runtime.

Questions:

1. How do I make ObjectDataSource resolve a CLR type from a custom assembly in a programmatically created report?

2. What is the recommended way to configure assembly references in .NET Core / .NET 8 for reports?

Any guidance or examples would be greatly appreciated.