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Author Kramek, Andy
Title 1001 Things You Wanted to Know About Visual FoxPro
Imprint Milwaukee : Hentzenwerke Publishing, Inc., 2000
book jacket
Descript 1 online resource (585 pages)
text txt rdacontent
computer c rdamedia
online resource cr rdacarrier
Note Intro -- Dedications -- List of Chapters -- Table of Contents -- Our Contract with You, The Reader -- Acknowledgements -- About Us -- How to Download the Files -- Introduction -- What is this book? -- A word about the code in this book -- So who is this book for? -- What is in this book? -- What is not in this book? -- Where do you start? -- Chapter 1 Controlling the VFP Environment -- Starting Visual FoxPro -- Configuration files -- How to specify a config.fpw file -- How VFP locates its configuration file -- How VFP starts up when no configuration file is found -- Including a configuration file in the project -- How to suppress a configuration file -- How to determine which configuration file is being used -- What goes into the configuration file? -- Special settings -- SET Commands -- Commands -- Giving VFP a path -- How VFP looks for files -- Setting the default directory -- Using the SET PATH command -- Where am I? -- How to set a path programmatically -- Making sure VFP is only started once -- Using a 'semaphore' file -- Using the Windows API -- Combination of semaphore and Windows API -- SET Commands and DataSessions -- What exactly does "Default DataSession" mean? -- So can I have a "public" Datasession? -- How can I ensure SET commands apply to a private data session? -- Adding code to BeforeOpenTables() -- Suppressing auto-open tables -- Creating an environment setting class -- How do I get rid of the system toolbars? -- The system toolbar "Gotcha! -- Can I make use of keyboard macros in VFP? -- How can I construct a more complex macro? -- What is a "Macro Set"? -- What's the difference between a macro and an On Key Label? -- How do I create a 'Splash' screen? -- How do I run my splash screen? -- An alternative to the splash screen -- How to wallpaper your desktop -- So how can I get the size of the current _Screen area?
Do I really need to create all these bitmaps? -- A toolbar 'gotcha!' -- Tidying up your development environment -- Closing VFP down -- What is an On ShutDown procedure? -- What triggers an On Shutdown procedure? -- What goes into an On Shutdown procedure? -- Chapter 2 Functions and Procedures -- How shall we proceed? -- Parameters (an aside) -- By reference, by value? -- How do I know what was passed? -- How should I position my parameters? -- How can I return multiple values from a function? -- What about using named parameters? -- Passing parameters optionally -- Date and time functions -- Elapsed time -- Date in words -- Calculating Age -- What date is the second Tuesday in October of 2000? -- Setting up a payment schedule -- What date is ten business days from today? -- Gotcha! Strict date format and parameterized views -- Working with numbers -- Converting numbers to strings -- Gotcha! calculations that involve money -- String functions -- Gotcha! string concatenation -- Converting between strings and data -- Other useful functions -- How do I determine if a tag exists? -- How do I determine if a string contains at least one alphabetic character? -- How to convert numbers to words -- How to extract a specified item from a list -- Is there a simple way of encrypting passwords? -- Where do you want to GOTO? -- Chapter 3 Design, Design and Nothing Else -- So why all the fuss about OOP anyway? -- So, just what does all this OOP jargon mean? -- Property -- Method -- Event -- Messages -- Classes and Objects -- Inheritance -- Composition -- Aggregation -- Delegation -- Encapsulation -- Polymorphism -- Hierarchies -- Practical object oriented programming (POOP) -- When should you define a class? -- So how do you go about designing a class? -- This all sounds very good but what does it mean in practice? -- How do you go about building your classes?
But does all this design stuff really work in practice? -- How does the design actually translate into code? -- Working with your classes -- How do I get my classes into the form controls toolbar? -- While we're at it, how can I identify my custom classes in the toolbar? -- But whenever I want white in my bitmaps it shows up gray! -- How do I make Visual FoxPro use my classes instead of base classes? -- How do I change the caption of the label that VFP adds? -- So can I get a browse to show the field name when a caption is set? -- User interface design -- Perception governs acceptance -- Keep your users focussed -- Use the right control for the job -- Chapter 4 Basic Controls -- What do we mean by 'basic'? -- Text boxes -- Text box label class -- Date text box -- Incremental search text box -- Numeric text box -- Handling time -- A time entry text box -- A time entry composite class -- The true time spinner -- Blinking labels -- The expanding edit box -- Calendar combo -- Command buttons -- Gotcha! Programming the logical controls -- Pages and page frames -- Chapter 5 Combos and Lists -- Combo and list box basics -- List and ListItem collections -- When do the events fire? -- How do I bind my combo and list boxes? -- How do I refer to the items in my combo and list boxes? -- What is the difference between DisplayValue and Value? -- What's the difference between RowSourceTypes "alias" and "fields"? -- How do I make my combo and list boxes point to a particular item? -- Quickfill combos -- How do I add new items to my combo and list boxes? -- How do I filter the items displayed in a second combo or list box based on the selection made in the first? -- A word about lookup tables -- Generic lookup combos and lists -- So what if I want to bind my combo to a value that isn't in the list? -- How do I disable individual items in a combo or list?
How do I create a list box with check boxes like the one displayed by Visual FoxPro when I select "View Toolbars" from the menu? -- A mover list class -- What if I need to display hundreds of items in my combo box? -- Chapter 6 Grids: The Misunderstood Controls -- When do the events fire? -- Gotcha! Grid's valid fires before the valid of the current control -- What is the difference between ActiveRow and RelativeRow? -- Gotcha! ActiveColumn does not really tell you which is the active column -- How do I highlight the current grid row? -- How do I keep my grid from scrolling when the user tabs off the last column? -- How do I create multiline headers? -- Gotcha! Scrolled event does not fire when cursor keys scroll the grid -- Using tool tip text instead of multiline headers -- How do I change the grid's display order? -- How do I control the cursor? -- How do I display the last full page of a grid? -- How do I use a grid to select one or more rows? -- How do I give my multiselect grid incremental search capability? -- How do I use DynamicCurrentControl? -- How do I filter the contents of a grid? -- So what about data entry grids? -- How do I add new records to my grid? -- How do I handle row level validation in my data entry grid? -- How do I delete records in my data entry grid? -- How do I add a combo box to my grid? -- Conclusion -- Chapter 7 Working with Data -- Tables in Visual FoxPro -- Some basics -- How to open the specific table you want to use -- How to get the structure of a table -- How to compare the structures of two tables? -- How to test for the presence of a field in a table -- How to check if a table is being used by another user -- What is exactly is a cursor? -- Indexes in Visual FoxPro -- Types of indexes -- How to get information about an index -- How to test for the existence of an index tag -- Using candidate (and primary) keys
What is a "surrogate key"? -- Managing user-entered keys -- Using indexes with bound tables -- How to index mixed data types when creating a compound key -- How to index a buffered table -- Working with the database container -- Using long table names -- Using long field names - don't!!! -- Using database containers -- How to validate a database container -- How to pack a database container -- Moving a database container -- Renaming a database container -- Managing referential integrity in Visual FoxPro -- Limitations of the generated RI Code -- Using compound keys in relationships -- What about other RI options? -- Using triggers and rules in Visual FoxPro -- So what's the practical difference between a 'trigger' and a 'rule'? -- Why, when adding a trigger to a table, does VFP sometimes reject it? -- Can I temporarily disable a trigger or rule then? -- How do I actually create my trigger and rule procedures? -- How do I add a trigger to a table? -- So when should I use a trigger? -- And when should I use a rule? -- Must a trigger or rule always refer to a single function? -- Chapter 8 Data Buffering and Transactions -- Using data buffering -- Where are we coming from? -- What do we mean by 'buffering' anyway? -- What does all this mean when creating data-bound forms? -- So just how do I set up buffering in a form? -- So what mode of buffering should I use in my forms? -- Changing the buffer mode of a table -- IsChanged() - another function that FoxPro forgot? -- Using TableUpdate() and TableRevert() -- Managing the scope of updates -- TableUpdate()'s second (force) parameter -- Specifying the table to be updated or reverted -- Conclusion -- How can I handle 'save' and 'undo' functionality generically? -- The design of the form class -- Using the new form class -- Detecting and resolving conflicts -- The role of OldVal() and CurVal()
So how do I actually detect conflicts?
Description based on publisher supplied metadata and other sources
Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2020. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
Link Print version: Kramek, Andy 1001 Things You Wanted to Know About Visual FoxPro Milwaukee : Hentzenwerke Publishing, Inc.,c2000
Subject Visual FoxPro for Windows.;Database management
Electronic books
Alt Author Akins, Marcia
Schummer, Rick
Hosier, John
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