Passing Array of Strings from C++

[gammaEmitter]

Hello Community!

I hope this is the right way to find help for my issue.

My goal is to populate a ComboBox with Items I hold in an array of strings. This is represented by slint as an
std::shared_ptr<slint::Model<slint::SharedString>>

I manage to create the object with std::make_shared and then try to add to the Model by its method
set_row_data(index_of_element,slint::SharedString(element))

I keep getting errors of a static_cast when creating the shared_ptr. When I create the pointer in another way, I get an error about using an abstract base class.

What is the usage of the Model wrapper for arrays and how can I solve my issue?

Thanks :)

[ogoffart]

Could you paste the exact error message you're getting as well as the relevant lines of code?

Are you using slint::VectorModel ?

Maybe you need to use std::static_pointer_cast ?

[gammaEmitter]

Thank you for your quick reply! My issue was resolved.

The error occured when I created the pointer by
auto model = std::make_shared<slint::Model<slint::SharedString>>();

and went away when I correctly applied slint::VecotrModel instead of the Base Class slint::Model
auto model = std::make_shared<slint::VectorModel<slint::SharedString>>();

For completion sake, this was the error from the first line

error: static_cast from 'std::__compressed_pair<std::allocator<slint::Modelslint::SharedString>, slint::Modelslint::SharedString> *' to 'std::__compressed_pair<std::allocator<slint::Modelslint::SharedString>, slint::Modelslint::SharedString>::_Base2 *' (aka '__compressed_pair_elem<slint::Modelslint::SharedString, 1> '), which are not related by inheritance, is not allowed
return static_cast<_Base2>(__pair);

Which the compiler narrowed down to std::make_shared.