How to make TArray> as Blueprint Function Parameter connect to CustomStructure Array in blueprint

Development Programming & Scripting
1

I create a Stucture named MyData in editor , and Blueprint Function in c++ .
static int myFunction(UUserDefinedStruct DataTable); this DataTable can connect to MyData

static int myFunction(UPARAM(ref) TArray& DataTable); this DataTable can not connect to MyData Array.

2

Hey there, does the function really to be static? Can you take a screenshot of the resulting node?

3

Thanks xlar8or, My mistake ,Non Aarray Version can not connect too, only select from list . How to make it connect . MyData Node is a reference of structure created in editor.

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	UFUNCTION(BlueprintCallable, meta = (DisplayName = "My Test Bp function", Keywords = "Test Bp function "), Category = "MyBpLib")
		static int myFunction(UUserDefinedStruct* DataTable, int32 Count);
	UFUNCTION(BlueprintCallable, meta = (DisplayName = "My Test Bp Array function", Keywords = "Test Bp function "), Category = "MyBpLib")
		static int myFunctionArray(UPARAM(ref) TArray<UUserDefinedStruct*>& DataTable, int32 Count);
4

Blueprints

5

“is not compatible with User Defined Struct object reference”. I think it is also inherited from the UUserDefinedStruct. thanks

6

My Data is a struct you created in blueprints or in c++?

7

When you drag the wire from the variable to the function parameter what is the error he’s saying? “is not compatible with User Defined Struct object reference”?

8

That is the weird thing here, when you create a struct it is supposed to create a user defined struct (at least thats what it says when you over struct in the add new new > blueprints > Structure, but maybe he uses a different type in the end, i’ve tried with UStruct pointer, UObject pointer as a parameter and nothing works.