nyjcr wrote: If anyone knows of a simple tutorial or can guide me through this, that would be great http://blogs.msdn.com/nicold/archive/2007/09/03/how-to-digitally-sign-a-string.aspx[^]

nyjcr wrote: the problem is that the string comes with "empty" characters at the end. No, the string doesn't come with any empty characters. The problem is that you get the length of the actual data, but then you just ignore that and convert the entire buffer into a string. The unused part of the buffer just happens to be filled with zeroes. Only convert the actual data: dataReceived = System.Text.Encoding.ASCII.GetString(input, 0, bytesReceived); Despite everything, the person most likely to be fooling you next is yourself.

Wow, I must be blind, I went through that before and did not noticed that... thank you for your help -JC

Sorry, I posted to the wrong forum... I, try to move it to the C# forum...

Thank you for your help.. How I got it to work. created a new element, assigned the old node to a new node specific to my search criteria newnode = root.SelectSingleNode("Students/Student/[@userid='" + loginform.userid + "']"); I then created a new attribute and used the append function to add the newly created attribute as the last attribute. saved the document... and it worked.. hope this help someone.... thanks again. JC

nyjcr wrote: XmlDocument upd = new XmlDocument(); upd.Load("file.xml"); XmlAttribute AttrUpd = upd.CreateAttribute("value"); AttrUpd.Value = "35.00"; upd.Save(file.xml); //THIS IS WHERE I GET THE ERROR It works fine at my end. But your code won't add attribute. You are not appending the attribute to any of the node. So you don't find this attribute in the file. Use XPath or upd.GetElementsByTagName() to get node, and use node.Attributes.Apped(). Call Save() then. All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia How to use google | Ask smart questions

XMLReader is forward only. Use XMLDocument class instead and use XPath to do your search. All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia How to use google | Ask smart questions

nyjcr wrote: VB is supposed to be this easy to learn, "foolproof" language...Its not! .Net has made so many thing with VB much easier than previous versions, with the exception of connecting to a plain ol Access database. I miss using vb6 only for data, but im really starting to get the hang of ADO.Net and am starting to like it.