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create file and append it

patd1 asked
Last Modified: 2012-05-10
I want to catch exceptions in a log file. I want to name my log file by date. If the file exists, it should append to it, if file does not exist, it should create one. I tried the following code but get error access to path is denied. I have shared the logs folder and given full control to every one. Please suggest what needs to be done.

I am getting the correct FileName as 11-11-2010.txt and Fullname (with path) as \\myserver\Projects\Results\Logs\11-11-2010.txt

Error: Access to the path '\\myserver\Projects\Results\Logs\11-11-2010.txt' is denied.

Thank You
public void WriteLog(string TextStr)
            string FilePath = ConfigurationManager.AppSettings["LogPath"].ToString();
            //Set Filename By Date
            string FileName = DateTime.Now.ToString("MM-dd-yyyy") + ".txt";
            string FullName = FilePath + FileName;
            //if file does not exist, create one
            if (!File.Exists(FullName))
                FileStream fileStream = new FileStream(@FullName, FileMode.Append);

            StreamWriter SW;
            SW = File.AppendText(FullName);

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