any applications can use the same code base.
early binding: assigning types to variables and expressions at compilation time. early binding is usually more efficient than late binding because it reduces the time required to set or retrieve a property value. see also: late binding.
encapsulation: the grouping of subroutines and variables together in a class.
enterprise edition: version of vb for development teams creating robust client/server or internet/intranet apps. includes all features of the professional edition, plus microsoft sql server developer edition, visual modeler, microsoft visual sourcesafe, and windows nt option pack.
environ function: returns the string associated with an operating system environment variable such as the path statement.
eof function: returns a value indicating whether the end of a file has been reached.
eof property: returns a value indicating whether the current record position is after the last record in a recordset. see also: bof property.
err object: an intrinsic vb object that contains information about runtime errors. this information can be accessed by its properties such as number, description, and source.
error event: occurs only as the result of a data access error that occurs when no vb code is being executed. this event is associated with controls that access data, such as the ado data control or the datagrid control. this event fires when a non-vb error is generated such as an ado error or perhaps a memory error.
error function: returns the error message that corresponds to a given error code.
event handler: subroutine called directly from vb in response to events associated with a particular object.
event procedure: contains code that is executed when an event occurs, such as when the user presses a mouse button.
event: occurs as the result of an action performed by the user or the program. for example, when the user presses the left mouse button over a button control, the mousedown event is activated and the code in that event procedure runs. when an object's event occurs, vb calls the associated event handler.
event-driven: an application driven by input from the user or other application. vb is an event-driven language. see also: procedural.
exp function: returns the constant e raised to the power n.
fat client: in a client/server environment, a client machine that contains the program logic and performs most or all of the application processing while the server performs little or none. see also: fat server, thin client.
fat server: in a client/server environment, a server that contains the program logic and performs most or all application processing with the client performing little or none. a thin client is the fat server's counterpart. see also: fat client, thin client.
field: one of several pieces of data that make up a record.
fileattr function: returns file mode or operating system file-handle information about an open file.
filedatetime function: returns a string indicating the date and time a specified file was created or last modified. for example, you can use this function to determine whether a file was opened to input data or append data.
filelen function: returns a long integer that indicates the length of a file in bytes.
first in, first out (fifo): a queue in which elements must be removed in the same order as they were inserted.
floating point: mathematical operation based on a number expressed as a whole or a fraction, such as 1.5 or 3.421.
focus: the active object. for example, typed keys are directed to the window that has focus.
form module: contains the code associated with a form object. it can also contain form-level declarations of constants, variables, and external procedures.
format function: formats a number, date, time, or string according to instructions contained in a format expression. for example, format(mytime, "hh:mm:ss ampm") returns "05:04:23 pm".
freefile function: returns the next valid unused file number.
front end: the part of an application users see and interact with. it can contain user interface elements as well as code.
function: a subroutine that returns a value. it can also take arguments.
fv function: returns the future value of an annuity based on periodic, constant payments, and a constant interest rate.
| ghij |
