How to dynamically create an instance of a UWidget in Editor

[Romeno]

Hi,

I’m in the process of learning Unreal and making a game. I want to create a general purpose Table widget. I decided to do it like this. There will be a Widget “Table” and it will have various settings like an array of “Columns”: an array of structs (is column editable, column contents type, etc). Ideally what I would like is that when the “Table” is used and the Columns variable is changed the UI is updated automatically: the columns and the table header are created or updated. And this can be seen in the editor by the designer. I tried to find info on how to automatically update Widget Editor content when the variable is changed but I failed to find it. So I decided to have a function able to be called in the editor to act as a button in Widget Editor to update the look manually.

But the next question is how do I dynamically create a say HorizontalBox in the Widget Editor using Blueprints or C++? I failed to find this either. I’m coming from Unity and it was quite easy to change Prefabs in the Editor. Can I do it in Unreal?

[Romeno]

I tried doing something like this. But this does not seem to work in the Editor. I tried with and without Add To Viewport

[Romeno]

I actually found the exact solution to what I wanted to achieve on BenUi website. Great docs/tutorials website. There was specific article on that matter.

I wish though the official Unreal documentation were much better on the subjects of Slate and this kind of Editor scripting. Sadge.

Add UWidgets to a UserWidget using C++ in the Editor