No instance of overloaded function Microsoft::reporting::winforms::localreport::render

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Hi, I have small application VS2015 Visual C++, WindowsForms. And I try to print the RDLC report directly to the printer. For that when I tried, I get struck, while I render the report.
Any kind advices will be enable to complete the task.
Thanks

public: static System::Void Export(LocalReport^ report, bool print = true){
		PaperSize^ paperSize = m_pageSettings->PaperSize;
		Margins^ margins = m_pageSettings->Margins;

		String^ deviceInfo = String::Format(CultureInfo::InvariantCulture,
			"<DeviceInfo>" +
			"<OutputFormat>EMF</OutputFormat>" +
			"<PageWidth>{5}</PageWidth>" +
			"<PageHeight>{4}</PageHeight>" +
			"<MarginTop>{0}</MarginTop>" +
			"<MarginLeft>{1}</MarginLeft>" +
			"<MarginRight>{2}</MarginRight>" +
			"<MarginBottom>{3}</MarginBottom>" +
			"</DeviceInfo>",
			ToInches(margins->Top),
			ToInches(margins->Left),
			ToInches(margins->Right),
			ToInches(margins->Bottom),
			ToInches(paperSize->Height),
			ToInches(paperSize->Width));
		//Microsoft::Reporting::WinForms::Warning^ warnings;
		System::Collections::Generic::IList<Warning^>^ warnings;
		m_streams = gcnew List<Stream^>();

                //I get error messages at the below report->Render lines.

		report->Render("Image", deviceInfo, CreateStream, warnings);  ??????????????????????????????????



		for each(Stream^ stream in m_streams) {
			stream->Position = 0;
		}
		if (print==true){
			Print();
		}
	}

Error Message :

No Instance of Overloaded function MIcrosoft::Reporting::Winforms::LocalReport::Render matches the arguement types are (const char[6], String^, Stream^(String^ name, String^ fileNameExtension, System::Text::Encoding^ encoding, String^ mimetype, bool willseek), System::Collections::Generic::IList<Microsoft::Reporting::WinForms::Warning^>^) object type is Microsoft::Reporting::WinForms::LocalReport^

Thanks Again

What I have tried:

I try to print the RDLC report directly to the printer

Posted 3-Mar-24 2:15am

Paramu1973

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M-Badger 3-Mar-24 9:26am

What overloads of the Render method exist ?
Do any of them take the types that you are calling with ?

What is the definition of the CreateStream method ?
What is its return type ?
Does that match the signature of the Render method ?

1 solution

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Richard MacCutchan · Accepted Answer · 2024-03-03T03:33:00

Solution 1

According to LocalReport.Render Method (String, String, CreateStreamCallback, out Warning ) (Microsoft.Reporting.WinForms) | Microsoft Learn[^], warnings should be an array of Warning Class (Microsoft.Reporting.WinForms) | Microsoft Learn[^] objects. Your parameter is a generic list.

Posted 3-Mar-24 3:33am

Richard MacCutchan

Comments

Paramu1973 3-Mar-24 9:56am

Thanks Richard, always I learned many things. This Richard is my profession.
Here is the error.
can't take address of 'PrintRDLCReport::CreateStream' unless creating delegate instance

public: static Stream^ CreateStream(String^ name, String^ fileNameExtension, Encoding^ encoding, String^ mimeType, bool willSeek){
		//Stream^ stream = gcnew MemoryStream();
		stream = gcnew FileStream(name + "." + fileNameExtension,FileMode::Create);
		m_streams->Add(stream);
		return stream;
	}

Richard MacCutchan 3-Mar-24 10:02am

Again I refer you to the documentation for the callback: CreateStreamCallback Delegate (Microsoft.Reporting.WinForms) | Microsoft Learn[^].