How to convert lambda syntax to regular syntax?-CodePudding

I see a lot of questions about how to convert TO lambda syntax and very few of the opposite.

I don't speak C#, could anyone please help me dissect this:

XmlSchema schema = XmlSchema.Read(schemaStream, (s, e) => {Debug.WriteLine("Xml schema validation error : "   e.Message);});

How will this line look without using lambda expression?

Thanks.

CodePudding user response：

If you want to translate it back into old-fashioned, pre-=> C#, you'd do something like:

private void OnValidationError(object sender, ValidationEventArgs args)
{
    Debug.WriteLine($@"Xml schema validation error : {args.Message}");
}

and then call the Read method this way:

XmlSchema schema = XmlSchema.Read(schemaStream, OnValidationError);

CodePudding user response：

The best way would be to write a local function:

void Error (object s, ValidationEventArgs e) => Debug.WriteLine("Xml schema validation error : "   e.Message);

XmlSchema schema = XmlSchema.Read(schemaStream, Error);