Hi Robert,

Thank you for the update, I am glad to hear that the second issue was resolved!

Regarding the issue with the null parameters, I was able to reproduce the issue locally this time thanks to the additional information.

if I inspect the browser DevTools' Network tab, in both the Get Report Parameters and Resolve Report Instance requests, the parameters are sent null as the value but something seems to be going wrong despite that and the error is thrown:

As a result, I have logged the bug report on our portal as well - Web Report Designer - Nullable argument types are not respected in the ObjectDataSource component, and have further updated your account's Telerik points.

Thank you for helping us improve the product!

Regards,
Dimitar
Progress Telerik

Hello Robert,

Thank you for the attached files and the feedback!

Issue 1: Data Members are not sorted alphabetically

I was able to reproduce the described behavior locally, indeed, in the Standalone Report Designer, the first data member is the default constructor, and then the others are sorted alphabetically but in the Web Report Designer, while the constructor is still first, the rest are not sorted alphabetically:

I have logged the issue on your behalf in a separate feedback item - Web Report Designer - The ObjectDataSource Wizard's Data Members are not sorted alphabetically.

Issue 2: Data Fields not being shown if the DataSet/DataTable has zero rows

This issue may be related to the third problem where incorrect values are passed to the data source parameters and the schema cannot be retrieved because the passe values are strings and an exception occurs on the server, for example:

I think this might be the case because when I created a method without parameters such as:

        [DataObjectMethod(DataObjectMethodType.Select)]
        public DataSet Test()
        {
            GenerateWidgetDataSet(out DataSet dataSet, out DataTable table);

            return dataSet;
        }

where I haven't added any rows to the table, the data schema is still present despite that:

Is there any additional setup that I need to do to reproduce the issue?

Issue 3: The GetDataModel method for the Data Schema uses incorrect values

I was able to reproduce the described problem locally, after the "Finish" button is clicked on the wizard, the designer makes a request to the GetDataModel(ObjectDataSourceInfo) endpoint to generate the data schema and fill the explorer with all data fields but the request's payload has incorrect values, for example:

I have logged the issue on your behalf in a separate feedback item - Web Report Designer - The GetDataModel method of the ObjectDataSource component used for the Data Schema has incorrect values.

Issue 4: Nullable types in Web Report Designer's Preview Mode

I created a new ObjectDataSource component through the wizard in the Web Report Designer, and it seems to correctly have picked up the nullable types, at least according to what is shown in the wizard:

To try and reproduce the issue, I set up the data source parameters to take their values from the corresponding report parameters:

Next, I confirmed that the "StartDate" and "EndDate" report parameters' values are null and put a breakpoint at the start of the "GetWidgets" method, then previewed the report and the breakpoint was hit successfully. After inspecting the values of the method parameters, they seemed to be null as expected:

Do you mind sharing a sample project where this issue is reproducible so that we can inspect it locally?

Issue 5: Cannot use the same "Name" for Report and Data Source Parameters

I was able to reproduce the described behavior, indeed, it seems that the Web Report Designer does not allow for creating a report parameter if the name is already in use by another data source component parameter.

I have logged the issue on your behalf in a separate feedback item - Web Report Designer - Cannot use the same "Name" for Report and Data Source Parameters.

Wrapping Up

Thank you for the provided feedback for the ObjectDataSource component and wizard in the Web Report Designer. I ended up creating separate feedback items for the issues that we managed to reproduce because we usually log each bug separately. I put the links in the sections above but I will also list them below for convenience:

• Web Report Designer - The ObjectDataSource Wizard's Data Members are not sorted alphabetically
• Web Report Designer - The GetDataModel method of the ObjectDataSource component used for the Data Schema has incorrect values
• Web Report Designer - Cannot use the same "Name" for Report and Data Source Parameters

As a reward for helping us improve the product, I have also updated your account's Telerik points!

For the other two reported issues, please let us know if there are any additional steps that we need to take in order to reproduce those problems, or even better - send us a runnable application where those two issues are present so that we can investigate them locally.

Once again, thank you for the valuable feedback and for using Telerik Reporting!

Regards,
Dimitar
Progress Telerik