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Indexers Sample 

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This sample shows how C# classes can declare indexers to provide array-like access to the classes.

Security noteSecurity Note

This sample code is provided to illustrate a concept and should not be used in applications or Web sites, as it may not illustrate the safest coding practices. Microsoft assumes no liability for incidental or consequential damages should the sample code be used for purposes other than as intended.

To open the sample file in Solution Explorer

  1. Click Download Sample.

    The File Download message box appears.

  2. Click Open, and on the left column of the zip folder window, click Extract all files.

    The Extraction Wizard opens.

  3. Click Next. You can change the directory that the files will be extracted to, and then click Next again.

    Make sure that the Show extracted files check box is selected, and click Finish.

  4. Double-click the sample's .sln file.

    The sample solution is displayed in Solution Explorer. You might get a security warning that says the solution location is not trusted. Click OK to continue.

To build and run the Indexers sample within Visual Studio

  1. In Solution Explorer, right-click the indexers project, and click Properties.

  2. Open the Configuration Properties folder, and click Debug.

  3. In the Command Line Arguments property, enter ..\..\Test.txt.

  4. Click OK.

  5. On the Debug menu, click Start Without Debugging.

To build and run the Indexers sample from the command line

  1. To compile the sample program, type the following at the command prompt:

    csc indexer.cs
    
  2. The sample program reverses the bytes in a file given as a command-line argument. For example, to reverse the bytes in Test.txt and see the result, issue the following commands:

    indexers Test.txt
    type Test.txt
    
  3. To change the reversed file back to normal, run the program on the same file again.

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