Tuesday, March 03, 2009 by rain
12 .1 is printed in palette
Support prints the main function that is POWER BUILDER.We operate palette in the database perhaps undertake printing the job among data window palette,Also can write code to fulfil printed function in script program.
...Tuesday, March 03, 2009 by rain
11 .3 kind user object
Besides the user boy or girl friend that can look,The user target that POWER BUILDER still offerred a kind to cannot be inspected:Kind user object.It also has very extensive application field.Say for example,When making a business use database software,Classics regular meeting uses certain business regulation to undertake repeatedly calculation and processing to data.If we define an user target,By the method that it will come to manage this to cover data processing,That can make the design work of the program a lot of more convenient.
...Tuesday, March 03, 2009 by rain
11 .Object of 2 visible user
Alleged can looking user boy or girl friend is but a when have some kind of action of put sb in a very important position or one group accuses.A case is cited below,Define an user target.Click the pushbutton of user object palette above POWER BAR above all,An user object is played to choose a dialog box on screen.The 11-1 that be like a graph.
...Tuesday, March 03, 2009 by rain
11 .1 brief introduction
The core idea of object-oriented to seeming programming.An object can own a certain number of property,And a series of the method that has operating to these attribute.An object can be passed a certain number of interface has each other effect with the object of other,Complete a work jointly.After been define when the object,It had energy,Can fulfil particular function.We give out after the definition of an object,Can use according to needing for many times,And do not need to do any additional works,The sex of put sb in a very important position that this raised script greatly and easy safeguard a gender.POWER BUILDER offerred user target this character,Supported an object very well to change programming.How are we with respect to specific introduction below in POWER BUILDER definition and use user object.
...Tuesday, March 03, 2009 by rain
10.3 revises unborn target
The purpose that successive ancestor window is not us.The end that uses successive character is a few common characteristic definitions many similar objects between ancestral object,Next through acceding this ancestor object makes unborn object acquires these collective character,After completing successive work,Still having a main job is make through revising these unborn targets they obtain their distinctive function,The job that finishs these unborn object itself thereby.
...Tuesday, March 03, 2009 by rain
10 .2 derive an object
Below,We explain through an example how derive object of a window.Actually,This is exceedingly simple.
Click the window palette pushbutton above POWER BAR,The window appeared to choose a dialog box above screen.The pushbutton that clicks mark to INHERIT accedes next,Next the system lets you choose successive where a window,We choose W_ANCESTER window,Click OK pushbutton next.
...Tuesday, March 03, 2009 by rain
10 .1 accedes
You had heard of certainly object-oriented this term,Object-oriented the mainstream direction that is design of eye future foreword.POWER BUILDER also offerred a few object-oriented character for the user.Inheritance is among them one of.Acceding is one of character with the strongest POWER BUILDER,Use successive,We can say from the object example that has built the window, user, menu waits derive setting out a moment its child object.By the object of derive we say for the ancestor,And to the object that comes out by ancestral derive,We say for offspring.Unborn will successive ancestor all character and program.And,When we revise ancestral target,These modification also will mirror go among offspring.Apparent,Use successive character,The time that programmer can save encode greatly,Generated applied program also will more safeguard easily.
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Tuesday, March 03, 2009 by rain
9 .5 makes HTML file
Apply extensively in network technology today,INTERNET also is risen by wider and wider application.Use POWER BUILDER,We are OK operate in data palette perhaps retrieves among data window palette come out data is saved with the format of HTML file rise,The content that such network browsers can scan data directly.Exceedingly convenient.
...Tuesday, March 03, 2009 by rain
9 .4 uses forms for reporting statistics
Making etc is the requirement that the user should raise for certain,Use data window,We can make rich commercial forms for reporting statistics.We carry a case below how is the specification designed and print name of a piece of employee to express.
...Tuesday, March 03, 2009 by rain
9 .Window of 3 dynamic data
9 .3 .1 brief introduction
From the content in front in the center,The data window that we know a window to go up accuses,Must cooperate to rise to just can have the job with a real data window target.All substance that data window object and place of data window object contain (be like text, graph) the property that has oneself.When the program moves,We can be passed get, the method that revises these attribute will reach the control that its belong to entity to undertake trends to data window object,Can establish a new data window target dynamicly even.Below,We operate with respect to what will introduce trends the method of data window object.
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