Visual basic List Boxes

        1. Drive List Box

·         The drive list box control allows a user to select a valid disk drive at run-time.  It displays the available drives in a drop-down combo box.  No code is needed to load a drive list box; Visual Basic does this for us.  We use the box to get the current drive identification.

·         Drive List Box Properties:

Drive                     Contains the name of the currently selected drive.

·         Drive List Box Events:

Change               Triggered whenever the user or program changes the drive selection.

         2.    Directory List Box

·         The directory list box displays an ordered, hierarchical list of the user's disk directories and subdirectories.  The directory structure is displayed in a list box.  Like, the drive list box, little coding is needed to use the directory list box - Visual Basic does most of the work for us.

·         Directory List Box Properties:

Path                       Contains the current directory path.

·         Directory List Box Events:

Change                  Triggered when the directory selection is changed.

  

           3.   File List Box

·         The file list box locates and lists files in the directory specified by its Path property at run-time.  You may select the types of files you want to display in the file list box.

·         File List Box Properties:

FileName                Contains the currently selected file name.

Path                       Contains the current path directory.

Pattern                   Contains a string that determines which files will be displayed.  It supports the use of * and ? wildcard characters.  For example, using *.dat only displays files with the .dat extension.

·         File List Box Events:

DblClick                 Triggered whenever a file name is double-clicked.

PathChange           Triggered whenever the path changes in a file list box.

·         You can also use the MultiSelect property of the file list box to allow multiple file selection.

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