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==========================================================================
Data Widgets (TM)
DEMO
Bound Custom Controls for Visual Basic
Version 1.00b
January 27, 1993
(C) Copyright Sheridan Software Systems, Inc., 1993
35 Pinelawn Road
Melville, N.Y. 11747 USA
Voice (516) 753-0985
Fax (516) 753-3661
BBS (516) 753-5452
==========================================================================
------------------------
How to Use This Document
------------------------
To view README.TXT on screen in Windows Notepad, maximize the Notepad window.
To print README.TXT, open it in Windows Write, Microsoft Word, or another
word processor. Then select the entire document and format the text in
10-point Courier before printing.
========
Contents
========
Part Description
---- -----------
1 What Are Data Widgets?
2 Control Feature Lists
3 Notes on running the demo program
=========================================
Part 1 - What Are Data Widgets?
=========================================
Data Widgets is a set of bound custom controls that
allow you to design front ends for database
applications with all the ease and power you have come
to expect with Visual Basic. Data Widgets virtually
eliminates the need for time-consuming coding when
developing database applications. All you need to do
is drop a control on a form, set a few properties, and
Data Widgets will do the rest!
=========================================
Part 2 - Control Feature Lists
=========================================
Data Widgets includes 6 bound custom controls. The
controls in the set are:
DataGrid -----------------------------------------------
The DataGrid is a fully editable, bound grid
that allows you to edit an entire record set, no
matter the size, on screen with no code whatsoever.
The following is a list of the features:
* Bound to the new data control in Visual
Basic 3.0
* Binds to a data control on a different form
* Breaks the 64K barrier
* Loads only enough records into memory to fill
display area
* Supports in-place editing
* Supports multi-colored cells and/or rows
* You can specify fixed columns and optionally
allow the user to change this with a splitter bar
* Can be used as bound list box (single column
grid)
* Functionally and visually consistent with the
Microsoft Access grid
* Automatically provides add, update and delete
functionality with no coding
* Supports drop down lists (DataDropDowns) by
column which can be optionally linked to
other data controls
* Provides an optional cell button for triggering
specialized processing for a column
* Variable properties for each column such as
alignment, format mask, etc.
* Optional column headings and row labels
* Column headings will default to field names
but can be overridden
* Supports 2-D or 3-D appearance
* Supports unbound columns for displaying calculated
fields
DataCombo -----------------------------------------------
The DataCombo is a bound combo box you can include
in your database application.
The following is a list of the features:
* Bound to the new data control in Visual
Basic 3.0
* Binds to a data control on a different form
* Breaks the 64K barrier
* Edit and drop down portions can be linked
to separate data controls
* Loads only enough records into memory to
fill display area
* Variable properties for each column such
as alignment, format mask, etc.
* Optional column headings
* Column headings will default to field names
but can be overridden
* Supports 2-D or 3-D appearance
* Supports unbound columns for displaying
calculated fields
DataDropDown --------------------------------------------
The DataDropDown is a custom control that you can
use to attach to a cell in the DataGrid to drop
down a list of values from another source of data.
The following is a list of the features:
* Used in conjunction with the DataGrid
* Bound to the new data control in Visual
Basic 3.0
* Binds to a data control on a different form
* Breaks the 64K barrier
* Loads only enough records into memory to
fill display area
* Variable properties for each column such as
alignment, format mask, etc.
* Optional column headings
* Column headings will default to field names
but can be overridden
* Supports 2-D or 3-D appearance
* Supports unbound columns for displaying
calculated fields
DataOption Button ---------------------------------------
The DataOption button is a 3-D option button that
you can link to a field in a database and have it
turn "on" when a certain value is in that field,
also toggling the others that may be in a group of
DataOptions to "off".
The following is a list of the features:
* Bound to the new data control in Visual
Basic 3.0
* Binds to a data control on a different form
* 3-D appearance
* Each option button in a group represents
a different value for the same DataField
* Set one option button's DataSource or
DataField and the other option buttons in the
group will synchronize themselves
automatically
DataCommand Button ---------------------------------------
The DataCommand button is a custom control that
binds to a data control and automatically performs
a database action when pressed.
The following is a list of the features:
* Bound to the new data control in Visual
Basic 3.0
* Binds to a data control on a different form
* Just like our standard 3-D Command button
but can also be linked to a Data Control and
automatically provide positioning functions
for moving to the beginning or the end or
forward or backward in the Data Control's
Record Set one or more records
Enhanced Data Controls -----------------------------------
The Enhanced Data Controls are custom controls that
behave as a front end to the Visual Basic data
control adding new functionality.
The following is a list of the features:
* Bound to the new data control in Visual
Basic 3.0
* Binds to a data control on a different form
* In addition to the previous, next, first
and last button of the standard data control
this control provides 2 additional buttons
that will allow the user to go forward or
backward multiple records in the Record Set
for each click (the # of records forward or
backward can be set via properties)
* The buttons have been enhanced to keep
moving forward or backward in the Record Set
while the buttons are held down. A delay
between the single and multiple moves can be
specified.
* Can have either a vertical or a horizontal
orientation
* Default bitmaps on buttons can be overridden
with programmer supplied bitmaps
* Caption area can display a picture as well
as text
* Provides two more optional buttons, one
button allows the user to set a bookmark to
save the current position in the dynaset,
the second button is used to return to the
saved bookmark
==========================================
Part 3 - Notes on running the demo program
==========================================
This ZIP file contains the following files:
SSDWDEMO.EXE The Data Widgets Demo execeutable file.
SSDWDEMO.MDB Sample database file.
SSDWDEMO.LDB Sample database file.
SSDATA1.VBX Data Widgets Custom Control.
SSDATA2.VBX Data Widgets Custom Control.
SSDATA3.VBX Data Widgets Custom Control.
THREED.VBX Three-D Custom Control.
README.TXT This text file.
QQUERY.EXE Quick Query - A table browser using Data Widgets
To run the demo program, install all the above files in a
single directory then run the program SSDWDEMO.EXE. To run
the program, either select 'Run' from the 'File' menu in
Program Manager, or double-click on the filename in File
Manager.