argumentexception

问题 This question already has answers here : empty path name not legal (2 answers) Closed 6 years ago . So I'm trying to compile an Asteroids game. It's almost working, all the files are in place etc etc... The issue comes when it hits this code. FileStream myFileStream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read); string myTempFile = @"F:\Documents\Junior School\Computer Programming (Java 1)\AsteroidsWithSound\AsteroidsWithSound\temp\mysound" + i.ToString() + ".wav"

问题 Why am I getting the exception \"Parameter not valid\" in my code: MemoryStream ms = new MemoryStream(byteArrayIn); System.Drawing.Image returnImage = System.Drawing.Image.FromStream(ms); The length of byteArrayIn is 169014. I am getting this exception despite the fact that no value in it is greater than 255. 回答1: I had the same problem and apparently is solved now, despite this and some other gdi+ exceptions are very misleading, I found that actually the problem was that the parameter being

问题 I am getting the following error when I post back a page from the client-side. I have JavaScript code that modifies an asp:ListBox on the client side. How do we fix this? Error details below: Server Error in \'/XXX\' Application. -------------------------------------------------------------------------------- Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation=\"true\"/> in configuration or <%@ Page EnableEventValidation=\"true\" %> in a page.