Tag Archives: internet

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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Get currency exchange rates in C#

This example shows how you can get currency exchange rates from finance.yahoo.com. When it starts, the program uses the following code to get the currency exchange rates. // Get the currency symbols. private void Form1_Load(object sender, EventArgs e) { string … Continue reading

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Get stock prices from different exchanges in C#

The example Get stock prices from the internet in C# shows how to download stock prices from download.finance.yahoo.com. It builds a URL of the following form to get prices for MCI, DIS, COKE, and PEP: http://download.finance.yahoo.com/d/quotes.csv?s=MCI+DIS+COKE+PEP&f=sl1d1t1c1 To get prices from … Continue reading

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Make a temperature forecast in C#

The example Get weather forecast data in C# explains how to read weather forecast data from OpenWeatherMap. This example uses that data to list the forecast’s temperatures. The forecast data has (in part) the following structure. <weatherdata> … <forecast> <time … Continue reading

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Get weather forecast data in C#

There are many sites that offer weather condition and weather forecast services. All of the ones I found required you to have a developer key, although most of them have a free membership that works for a simple program like … Continue reading

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Display Google Maps for the computer’s location in C#

This example combines the techniques of the following two posts to display the computer’s current location in Google Maps: Use the Location API to find the computer’s latitude and longitude in C# Display Google maps for an address inside a … Continue reading

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