private Timer Clock = new Timer();//create a timer
void Clock_Tick(object sender, EventArgs e)
//refresh the time every 1 second
this.winFormTimerLabel.Text = DateTime.Now.ToLongTimeString();
private void Form1_Load(object sender, EventArgs e)
Clock.Interval = 1000;//every 1 second do something
//what the program is supposed to do when 1 second elasped
Clock.Tick += new EventHandler(Clock_Tick);
Clock.Start();//starts the timer
I finally understood where did I went wrong - I did not put in the interval value and I did not start the timer..... silly me
Ok when i created a new Query, they asked me Type of SQL query to use.
SELECT which return rows
SELECT which return single value
At first, i selected "SELECT which return rows" and they asked for 3 arguement. dataTable, string nric and string password.
So i change to "SELECT which return single value"
string result = sa.ValidateLogin(txtUsername.Text, txtPassword.Text);
When i key the correct username and password, the messagebox shows the username. If i enter a wrong username and password, the whole program ended and point to my code and says, NullReferenceException was unhandled.
If the correct username was found, i want to store the results of other columm to my variable i declared. Because my staff table have
i have an application that work with threading.
in load_form event of the form i create an instance a thread object and run it,
now my problem is , i want to kill the thread on another event such as button_click event on this form and i cant do it.
i can not create my thread public, because the number of thread should be create is not certain in my allpication,
how can i do it, please sya me a solution to solve it...
nobody help you...
you have to help you yourself
and this is success way.
The only reliable way to kill a thread is to let the thread terminate normally.
This means you need a way to notify a thread that it needs to terminate, and
provide a way to wait for the thread to terminate if necessary.
There's synchronization objects you can use. For example, EventWaitHandle.
There's no need to "create my thread public", but you may need to keep contexts
to your created threads somewhere, like in a collection in your form class.
I have a problem in downloading .css and script files associated with aspx page on downloading the page page. I have used java script to download the file.
code is :document.execCommand("SaveAs",true,document.title + '.html');
I am wrting an Http client to access some web page. My current network configuration is using proxy of local lab to access internet.
For the URLs which I can not access, I have also tried in IE, both of them are errors from DNS/Bad gateway. Here is the error message in IE.
My questions are,
1. is DNS fail to resolve the domain name to IP address the root cause?
2. If yes, which party is responsible to choose which DNS to use? Proxy will choose which DNS to use or proxy will resolve the name to IP directly?
IE error message,
Error Code 11001: Host not found
Background: This error indicates that the gateway could not find the IP address of the website you are trying to access. This is usually due to a DNS-related error.
Date: 8/2/2008 10:41:38 AM [GMT]
Source: DNS error
HTTP, the protocol which web browsers use to retrieve and display web pages, is different from DNS. I don't think web proxies to DNS resolution - proxies get a resolved address to which they open a HTTP connection.
Here's a quick way to find out who's doing the resolution - Open cmd.exe and type nslookup. Play around with the options there (set d2) and you'll get a lot of information about who's doing the resolution.