Bitmap class error in c# (The parameter is not valid)

Question

I want to convert an image to bitmap format. Here's the code i wrote :-

Bitmap bmp = new Bitmap("c:\\images\\a10.png");

The parameter image is taken from the function parameter. It takes a full path with filename. When i run, an error pops up showing "The parameter is not valid". But this class accepts filename as constructor.

Answer 1

The image path you set is not correct. That image does not exist at that location.

Check your path to verify the image.

This code will properly save a png to a bmp provided the png exists.

Bitmap bmp = new Bitmap("c:\\images\\a10.png");
bmp.Save("c:\\images\\a10.bmp");

EDIT:

The above worked for me, but here is another way:

Image bmp = Image.FromFile("c:\\images\\a10.png");
bmp.Save("c:\\images\\a10.bmp", ImageFormat.Bmp);

Answer 2

最简单的方法是：

Bitmap bm = new Bitmap("C:/images/a10.png");