The release number of this article has been CHS305703
This article discusses a Beta version of Microsoft products. The information in this article is provided as "as", if there is any change without notice.
For this Beta product, Microsoft does not provide formal product support. For information on gain support for Beta versions, see the documentation included in the beta product file or view the site you downloaded.
For Microsoft Visual Basic .NET versions of this article, see
305705.
This task content
summary
Request to specify the URL, FTP or file to be opened, using the START method of the Process class, start the browser provides an exception handling completion code example troubleshooting reference
Summary This article demonstrates how to start the default Internet browser.
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Claim
Microsoft Visual Studio .NET
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Specify the URL, FTP, or file you want to open. You can specify a URL, file, or FTP address. The following three assignments are valid:
String Target = "http://www.microsoft.com";
String Target = "ftp://ftp.microsoft.com";
String target = "c: // program files // microsoft visual studio // install.htm";
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Start your browser using the START method of the Process class
The Process class contains a static
START method. Because this is a static method, it is called
Start does not have to be
Example of the Process class.
System.diagnostics.Process.start (Target);
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Provide abnormal processing because of call
The default is used when the start method
Useshellexecute properties, so you don't have to explicitly query the registry to determine the default browser. However, if this approach is used on a computer that is not installed in a browser, it will have an exception. This exception must be captured to take the appropriate operation. This example explicitly captures errors generated when the required registry key is not found and indicates that the browser is not installed. In addition, a general exception handler is also provided to handle other errors that may occur. The complete code list is displayed
TRY ... CATCH block.
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Complete code example
String Target = "http://www.microsoft.com";
// Use no more Than One Assignment When You Test this code.
// String target = "ftp://ftp.microsoft.com";
// String target = "c: // program files // Microsoft Visual Studio // Install.htm";
Try
{
System.diagnostics.Process.start (Target);
}
Catch
(
System.componentmodel.win32exception Nobrowser)
{
IF (nobrowser.errorcode == - 2147467259)
MessageBox.show; NobrowSer.Message;
}
Catch (System.exception Other)
{
Messagebox.show (Other.Message);
}
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Troubleshooting this code is highly dependent on the registry
The "Application-File Type" associated with the HKEY_CLASSES_ROOT section. This code may cause unexpected results and exceptions if the registry is destroyed. In addition, file types and extensions can be associated with applications other than the browser. For example, an HTM or HTML file may be associated with a web development software instead of a browser. Back to top
Reference
For more information, please refer to the following .NET Framework class library documentation:
http://msdn.microsoft.com/library/en-us/cpref/html/frlrfsystemdiagnosticsprocessClasStopic.asp
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The information in this article applies to:
Microsoft Visual C # .NET Beta 2
Recent Updated: 2001-10-25 (1.0) Keyword Kbhowto KbhowTomaster Kbprod2Web KB305703 KBAUDDEVELOPER
