How to insert a slot at specific location?

Development Programming & Scripting
1

Hi ,

Currently I am able to dynamically add slot at the end by using AddSlot() function

GeneralWidget->AddSlot().HAlign(HAlign_Fill).Padding(10)
[
WidgetRow.ToSharedRef()
];

But suppose I want to change the value of a particular slot item , I am able to remove the slot item by using RemoveSlot() function , but how can I insert a modified slot value at the specified location?

2

I can do this by adding a method in the engine class SScrollbox.

SScrollBox::FSlot& SScrollBox::InsertSlot(int32 Index)
{
SScrollBox::FSlot& NewSlot = SScrollBox::Slot();
ScrollPanel->Children.Insert(&NewSlot , Index);

return NewSlot;

}

But I dont want to change the source code. I want to do this within my project classes only

3

GetChildren()->GetChildAt() will give you the pointer to your SWidget at specified location. You can use that, I guess.

4

I was unable to use that for inserting items at an index , and for removing item it was throwing run time error , so i added two new functions in the souce code and that is working. But i want to have all custom functions in my project and not in source code.

Please help if there is any other way.

5

So you want to insert the whole new SWidget instead of some value of this SWidget?

For a purpose like this I created my own scompoundwidget with TArray of pointers to my inner swidgets. I also added functions to this widget which reconstruct widget everytime the array of inner widgets changes. This way I always have access to any inner widget this scompoundwidget has and can change its contents.

6

Yes. Correct. And also I cant to this by declaring the widget and changing its value , since the same widget has been used to generate all the rows of the parent widget