No instance of overloaded function "STextBlock::FArguments::Text" matches the argument list

Development Programming & Scripting UI
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1

So I’m trying to add a ComboBox from C++, and this is roughly what’s going on:

SNew(SComboBox<FComboboxItem>)
.OptionsSource(&Options)
.InitiallySelectedItem(CurrentItem)
[
	SNew(STextBlock)
	.Text(this, &FGOAPModule::GetCurrentKey)
]

However, this part returns an error:

SNew(STextBlock)
.Text(this, &FGOAPModule::GetCurrentKey)

The error reads:

no instance of overloaded function "STextBlock::FArguments::Text" matches the argument list	
argument types are: (FGOAPModule *, FText (FGOAPModule::*)())
object type is: STextBlock::FArguments

However, I’m cross-referencing with this, and I can’t see why it’s throwing an error despite being virtually identical. Additionally, STableViewListing in the source files use .Text in the same way.

2

Okay, so I realized one thing I’m doing wrong. Apparently, I need to pass .Text a const.

So the function I’m trying to call is this…

.h

FText GetCurrentKey() const;

.cpp

FText FGOAPModule::GetCurrentKey() const
{
	if (CurrentItem.IsValid())
	{
		return FText::FromString(*CurrentItem);
	}

	return LOCTEXT("InvalidComboEntryText", "<<Invalid option>>");
}

However, I’m getting a slew of weird errors now that I try to figure the origin of…

3

Nevermind, I figured it out.

.Text can take the function arguments, but the function needs to be const, as shown above. I.e

FText FGOAPModule::GetCurrentKey() const
{
	if (CurrentItem.IsValid())
	{
		return FText::FromString(*CurrentItem);
	}

	return LOCTEXT("InvalidComboEntryText", "<<Invalid option>>");
}

Now my next problem was that I would get an error when compiling. It was related to delegates, though I’m not privvy to exactly why. Thanks to this link I discovered I needed to make this change…

Before

.Text(this, &FGOAPModule::GetCurrentKey)

After

.Text_Raw(this, &FGOAPModule::GetCurrentKey)