Tag Archives: internet

Generate a random password in C#

As I mentioned in a recent post, you should always use a strong password for every login. Remember, a computer can perform millions or billions of operations per second, so your daughter’s birthday or the name of your son’s guinea … Continue reading

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Why Twitter recently wanted you to change your password

A few days ago, Twitter asked all of its users to change their passwords. The reason they did that was that they found a bug in their system that made an internal log file store passwords in an unencrypted form. … Continue reading

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See if the internet is available in C#

There are many ways you can test your network to see if the internet is available. Some methods may indicate that the network is connected if your local network is available even though the internet is not. Even if you … Continue reading

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Blank the WebBrowser control in C#

If a program displays a web page in a WebBrowser control and then that page become irrelevant to the program, you may want to blank the control. Doing that is as easy as making the control navigate to the special … Continue reading

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Download and display a text file whenever a program starts in C#

When this example starts, it downloads a file from the internet and displays it. You could do something similar to display a message of the day or announcements for your program. The program uses the following Load event handler to … Continue reading

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Display the Astronomy Picture of the Day on the desktop in C#

This example combines the techniques from the following two posts: Download the Astronomy Picture of the Day in C# Set the Windows desktop picture in C# This example uses two settings, LastLoadTime and LastUrl, to determine whether it is a … Continue reading

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Download the Astronomy Picture of the Day in C#

Each day the Astronomy Picture of the Day web page does exactly what you would expect: it displays a different astronomy picture. The pictures include planets, nebulae, spacecraft, and other astronomy-related images, and the page includes an explanation of the … Continue reading

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Map between host names and IP addresses in C#

When you enter a host name and click Go, the program uses the following code to look up the host and display the IP addresses associated with it. using System.Net; … // Display the entered host’s IP address. private void … Continue reading

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See if Internet Explorer uses a proxy in C#

This example determines whether the system has Internet Explorer configured to use a proxy. Internet Explorer lets you specify proxy settings. In the Tools menu, select Internet Options. On the Connections tab, click the LAN Settings button. The goal of … Continue reading

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Graph currency rates over time in C#

This example, which shows how to graph currency rates for a specific currency, is a bit longish. Sorry about that. It uses Yahoo Query Language (YQL), which you can use to perform a wide variety of queries on Yahoo’s data. … Continue reading

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