Search results for query: *

Hi all, I have a serializable class 'A', which holds an arraylist. I add an instance of serializable class 'B' to this arraylist, then attempt to serialize class A using binary formatter, but at that point it dies. I've run it through the debugger and it just stops at the serialization...

Hi, I have a CommsManager object in my application which manages network communications, I want to create a new instance of this when the application starts, then persist the object so I can access its methods anywhere in the application.. I think this is kind of like how a session in asp.net...

Hi, I have two applications, one is a server and one is a client. upon recieving data the server sends a serialized "Request" (I know this is teh wrong way around but im only prototying anyway) object to the client, but when I try to deserialize the object on the client side I get...

Hi all, Say I had a CartItem class which represented a single cart item, and a CartItemCollection class which contains (not sure if this is how its done) a arraylist of CartItem objects.. How do I bind this data to a datagrid? create a datagrid in the CartItemCollection and return it? or is...

Hi all, I usually develop web applications, but am delving into desktop application development with c#. Im a little stumped on the archtecture of a .net application, I've gone through the tutorials but they all seem to be a little overdone. Currently im doing this: I have a user interface...

Hi all, I've just installed MSDE on my system, I already has Sql Server 2000 running. I installed MSDE as instance name "msde" and have compname&msde service running, so it appears to be working. When I open query analyzer I can connect to this instance and run queries on it, however...

Hi, Im trying to create a socket library which doesn't use TcpClient or TcpListener.. I've written the client, which seems to work fine. On the server side so far I have SocketServer and ClientHandler classes, when the server accepts a connection it passes the socket to a new instance of...

Hi all, Im not unfamiliar with sql server 2k but this time I want to make sure I have 'proper' naming conventions in the database. So heres the scenario: I have a table called 'Users' which lets just say for now has a primary key column called 'UserID_PK'. I also have a table called...

Hi, I have an application where toolbar icons change the contents below. e.g. Clients toolbar will display a list of clients, some buttons etc and Reports toolbar will display something completely different in the same form.. I was wondering how you achieve this? I was thinking to make panels...

Hi, How would I declare an event in a class 'client' and raise the event at any time in the class, and have the functionality for the event in the form that creates an instance of the class 'client' ? basically, I have a server class which is also the form, and I have a clientservice class...

Hi, Im looking to create a client/server c# application. I've been reading many articles on the subject, but the developers always seem to be arguing about the best practices after the article. I was just wondering if anyone has any tips? to use synchronous or asynchronous, etc. Polling or...

Hi, Im trying to compile two files into a exe, but can't make it work. The files are: main.cs - member of application.core.components namespace aboutForm.cs - member of application.core.components namespace Im having trouble compiling because both of them reference the namespace, and they...

Hi, Im interested in creating a library for generating pdf files on the fly. Does anyone have any information on what this involves..e.g. what do I write to the pdf file, xml? binary? Any information on the subject, or if anyone knows of an opensource / free pdf generation library please let...

hi all, i want an x 'button/link' on my datagrid, that posts back and lets me retrieve a value (primary key) associated with it so I can perform the action, namely delete item, is there a way to do this or do i have to create a link? e.g. cart.aspx?action=delete&id=4503

Hi, I've just written a forms authentication login page, which authenticates users with a table in a sql database. thats fine, but I also have a register page, which inserts the user into the database, then from here, i want it to log them in and carry on as usual, however, how can I use...

Hi, I was just wondering what would be the best solution to create a shopping cart, e.g. in terms of storing the cart, cart items etc. I was thinking of creating a cart class, an instance of this can be stored in a session, which reads its items from the database using a unique id from the...

Hi, I have the following code, and im getting this error on the line that creates a new DataTable object:- System.Data.DataTable denotes a class which is not valid in the given context. I've commented alot out trying to find the error, but it persists. Anyone have any ideas? code:- using...

Hi, I've noticed that you can only retrieve ado parameters with direction adParamOutput when executing the command object e.g. objCommand.Parameters.Append .CreateParameter("@Return", adInteger, adParamOutput) objCommand.Execute...

This sproc is supposed to build a query dynamically (in order to add filtering) then page records, it worked fine until I added the employeesTo filter, now I get this error ============================================= Server: Msg 245, Level 16, State 1, Procedure sp_getAllRecords, Line 105...

Hi, I have a java applet which allows you to drag n drop shapes. at the moment the drag code is as follows: public boolean mouseDrag(Event evt, int x, int y) { if (selectedObject != null) { selectedObject.x = x; selectedObject.y = y; } repaint(); return true; }...