UI Grid Widgets

Development Programming & Scripting C++
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1

Hello everyone, i have a question about slate. There are two widgets: Uniform Grid Panels, Wrap Boxes. i know that
through +SWrapBox::Slot() i can add items inside of this widget, but i need to add them through loop of array, but i have no clue how to do it. So if anybody knows how to do it, please help

2

You can loop over your array and then call AddSlot() on the SWrapBox instance. This will do the same thing as +SWrapBox::Slot() would do when using the Slate declarative syntax.

TSharedRef<SWrapBox> WrapBox = SNew(SWrapBox);

for(const auto& Item : YourArray)
{
    WrapBox->AddSlot()
    [
        /** Add your widget here */
    ];
}
3

hey, thanks, but did i make mistake? because this one doesnt work, it shows nothing

	TArray strArr;
	strArr.Add("hello");
	strArr.Add("Hello 1323");
	strArr.Add("hello dwadw23");

	TSharedRef WrapBox = SNew(SWrapBox);

	for (const auto& Item : strArr)
	{
		WrapBox->AddSlot()
			[
				SNew(STextBlock)
				.Text(FText::FromString(Item))
			];
	}


	ChildSlot
		.VAlign(VAlign_Fill)
		.HAlign(HAlign_Fill)
		[
			SNew(SVerticalBox)
			+ SVerticalBox::Slot()
			.AutoHeight()
			[
				SNew(SBox)
				.WidthOverride(600)
				.HeightOverride(300)
				[
					SAssignNew(WrapBox, SWrapBox)
					.PreferredWidth(100.f)
				]
			]
		];
4

Close…

In the loop, Item is your FString in the array.

You already have the WrapBox, so your SAssignNew is replacing that instance.

The following should work, although I haven’t tested it.

TArray<FString> strArr;
strArr.Add("hello");
strArr.Add("Hello 1323");
strArr.Add("hello dwadw23");

TSharedRef<SWrapBox> WrapBox = SNew(SWrapBox)
	.PreferredWidth(100.f);

for (const FString& Item : strArr)
{
	WrapBox->AddSlot()
	[
		SNew(STextBlock)
		.Text(FText::FromString(Item))
	];
}


ChildSlot
.VAlign(VAlign_Fill)
.HAlign(HAlign_Fill)
[
	SNew(SVerticalBox)
	+ SVerticalBox::Slot()
	.AutoHeight()
	[
		SNew(SBox)
		.WidthOverride(600)
		.HeightOverride(300)
		[
			WrapBox
		]
	]
];
5

perfect, it works, thanks a lot :slight_smile:

6

Thank you for asking, I have the exact same question.