[RESOLVED] [Workaround found] Easy: Pass string arg to Webservice

[Dave Sell]

All,

I made a webservice and can Invoke the HelloWorld that gets made by the IDE. I also made a Webmethod that returns a record set thing and that seems to work fine, I can breakpoint in the code and everything.\

However the following Webmethod does not work with the string argument:

[WebMethod] public byte[] FilePickUp(string sFileName)
{
	string sFilePath="C:\\Temp\\Dave.png";
	byte[] byteContent = null;
	try
	{
        if (IsFileExist(sFilePath) == true)
		{
            FileStream fs = new FileStream(sFilePath, FileMode.Open, FileAccess.ReadWrite);
			byteContent = new byte[fs.Length];
			fs.Read(byteContent, 0, (int)fs.Length);
			fs.Close();
		}
		else
		{
			byteContent=new byte[1];
			byteContent[0]=0;
		}
	}
	catch(Exception ex)
	{
		throw ex;
	}
	return byteContent;
}

However, if I remove the string argument, I can call the Webmethod just fine.

The Webmethod compiled with the string argument shows a text box under the Invoke button when I run from the IDE. However pressing Invoke just causes a nasty error:

The page cannot be displayed 
There is a problem with the page you are trying to reach and it cannot be displayed. 

--------------------------------------------------------------------------------

Please try the following:

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HTTP 500 - Internal server error 
Internet Explorer  

So when I remove the string argument I can call the Webmethod just fine, and get the .PNG junk dumped back into my browser.

Any ideas?