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QuestionGeneric List Template, Function Parameter Pin
Brennan Salibrici24-Apr-19 1:09
MemberBrennan Salibrici24-Apr-19 1:09 
Hello All.

I'm trying to create a function that can loop through a list of Windows::Forms::Controls (I know there's no loop below, I'm just keeping it simple for sake of testing) and perform a task. Right now I have a function which works properly:
 void mCtrlWrap::IsVisible(bool TF, List<Windows::Forms::TextBox^>^ list)

{
	if (TF == true)
	{
		list[0]->Visible = true;
		list[0]->BackColor = Color::Azure;
	}
	else if (TF != true)
	{
		list[0]->Visible = false;
	}

}


but i want to make the List parameter a template so that it take List<windows::forms::combobox^>^ as a parameter or List<windows::forms::label^>^, etc.

I've tried

template<typename T>
 void mCtrlWrap::IsVisible(bool TF, System::Collections::Generic::List<T>^ list)

{
	if (TF == true)
	{
		list[0]->Visible = true;
		list[0]->BackColor = Color::Azure;
	}
	else if (TF != true)
	{
		list[0]->Visible = false;
	}

}




which compiles just fine but i get linking errors:
1>MainScreen.obj : error LNK2020: unresolved token (06000001) mCtrlWrap::IsVisible<system::windows::forms::textbox ^="">

can someone please help me figure out what I'm doing wrong?

Thanks

Brennan
AnswerRe: Generic List Template, Function Parameter Pin
Richard MacCutchan24-Apr-19 1:56
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QuestionLocationApi.dll having issue while trying to fetch location. Pin
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NewsC++/CLI + /std:c++latest is broken in VS 2017 15.9.6 Pin
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Questionwhere to include new class in c# , windows forms, visual studio Pin
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QuestionHow to format DATETIME Pin
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