how to tiff file to print in c# winform (urgent)

If you mean that you want to load TIFF images and Print them using C#, you can directly using Microsoft Image.FromFile method. You can find more information here:

https://msdn.microsoft.com/en-us/library/stf701f5%28v=vs.110%29.aspx

Note that TIFF format supports different compressions types (JPEG, FAX, etc.). So if the compression is not natively supported by the standard .NET classes, you might need to use a programming toolkit (leadtools) that supports different types of compressions.

About printing the image, see the following MSDN help page:
https://msdn.microsoft.com/en-us/library/system.drawing.printing.pagesettings.landscape.aspx