Ahh...i'm so stupid:mad:. I created a namespace "Help".

thanks alot for your reply, that fixed my problem:-D

Did you look at the InnerException property of the exception thrown? Does it give you any useful clues? Typically, this problem comes when one of the member types are not declared [Serializable]. Regards Senthil _____________________________ My Blog | My Articles | WinMacro

Form1.cs private void InitializeComponent() { printMsg += new myEventHandler(AddItem); //some code here } public delegate void myEventHandler(string msg); public event myEventHandler printMsg; public void AddItem(string msg) { listBox1.Items.Add(msg); } Form2.cs [STAThread] Form1 frm; static void Main() { frm = new Form1(); Application.Run(frm); } private void button1_Click(object sender, System.EventArgs e) { //Form1 f = new Form1(); frm.AddItem("just testing"); }

hi, thanks for your reply. i didn't post the code since it's very long. basically i only used BeginSend()(tcp socket) method to send the message and i get to this part of the other application : //------WebService file-------- public string EndSendMessage(System.IAsyncResult asyncResult) { object[] results = this.EndInvoke(asyncResult); return ((string)(results[0])); } //---Form.cs file--------- MyWebService ws = new MyWebService(); //other code here... string str = ws.EndSendMessage(); //<---- string is null I've been looking around for a code that works like this but i can't find one. Is it really possible to send a message from a TCP socket to a Webservice? :confused: Thanks.

I believe I followed the instructions. I did the steps in: To install the sample databases and samples after Setup. But then when I tried to register the AdventureWorks Database, in the New Server Registration Dialog Box, I clicked on the AdventureWorks (in the Connect to Database listbox), then I clicked TEST button, I'm getting an error says: "Cannot open database requested in login...." So I thought it was installed but not attached, so what I did I used the ATTACH context menu in the Database, i looked for the .mdf file, but I'm still getting an error. But I was wondering why when I installed AdventureWorks it didn't go to this path: n:\Program Files\Microsoft SQL Server\MSSQL.n\MSSQL\Data. It when here: n:\Program Files\Microsoft SQL Server\90\Tools\Samples \AdventureWorks OLTP. And I'm getting an error when i'm trying to attach it:confused: hope this makes my problem clear and hope you can help me. Thanks!

Generally, yes. But what and how it's passed depends entirely on the parameter(s) of the function your calling. There are no hard and fast rules that work for every parameter. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

for creating a table use the same way as you use to execute any query for insert or update. like this ' where cmd is command object cmd.commandtext=="Create table tablename ....." cmd.executenoquery()

yes i'm running my client and server on the same machine...yeah i think i have a problem connecting to my web service to my sql database. thank you!

yes please send it over if you found it :-D. i'm not getting the exception(service requested is not found)anymore. however, it's still not working properly ...i don't know if it is me or the code given in the book. i'm newbie in .net remoting:doh: