Programming Guide - Actian

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Listview FieldsextensionSpecifies a telephone extensionimage_indexSpecifies an integerNow, to display the frame script to understand the following discussion, clickTools, Script on the floating menu bar.The following script is displayed:The script declares a variable, names, as an array of name_and_extension.The populate_name_array procedure loads the names array with data.262 <strong>Programming</strong> <strong>Guide</strong>
Listview FieldsThe set_listview_images procedure sets up the SmallImageList andLargeImageList arrays of the listview field. SmallImageList and LargeImageListare arrays of bitmapobjects. In this example, the bitmaps display letters, andthe nth item of each array is a bitmap representing the nth letter of thealphabet.The next step in setting up the listview field is to associate bitmaps with eachitem in the names array. This example uses the bitmap corresponding to thefirst letter of the last name. The set_image_indexes procedure calculates theappropriate bitmap index for each item in the names array and stores theindex in the image_index attribute.Initially, the name array is sorted by last name. The sort_names_arrayprocedure sorts the array using the values of sort_column and sort_order todetermine how the array is sorted.Finally, the load_listview procedure is called to load the listview field with data.How You Can Load the Listview Field with DataA listview field is a choice field, and like other choice fields has a ValueListattribute. The ValueList attribute is a ChoiceList. Unlike the other choice fields,the ChoiceItems attribute of the ValueList of a listview field is an array ofChoiceDetail objects. Each ChoiceDetail object contains information about arow in the listview field.The ChoiceDetail class has the following attributes:EnumDisplayContains the text, which is displayed in the first column of the listviewEnumTextContains a text stringEnumValueContains an integer value that you may use to identify an item in the listIsSelectedIndicates at runtime whether the item is currently selectedEnumBitmapIs not used by listview fieldsEnumSubTextSpecifies an array of StringObjects. The nth item in the array contains thetext that is displayed in column n + 1 of the listview.Working with List Views and Tree Views 263
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Ingres OpenROAD ® 2006Programming
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ContentsChapter 1: Introduction 13I
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Using an Object-oriented Approach t
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How You Can Retrieve Array Informat
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Chapter 12: Managing Event Queues 3
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Chapter 17: Preprocessing Your 4GL
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Chapter 1: IntroductionThis section
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ConventionsConventionsThe following
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Your Support OptionsYour Support Op
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OpenROAD NamesThe rules for these n
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OpenROAD Names3. Enclosing field sc
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OpenROAD NamesThe following code ex
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VariablesThe following illustrates
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VariablesIn the first example, film
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VariablesOpenROAD checks references
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VariablesHow You Can Declare Dynami
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VariablesFor example, assume that y
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ExpressionsHowever, you cannot use
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ExpressionsThe general syntax for h
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ExpressionsCurSessionSpecifies, for
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ExpressionsString OperatorThe conca
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ExpressionsOperatorlikenot likeOper
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Expressions• You can use the esca
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ExpressionsBecause procedures can r
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System-defined FunctionsThis rule h
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System-defined FunctionsNameOperand
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System-defined FunctionsName Operan
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System-defined FunctionsNameshift(c
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System-defined FunctionsSome date f
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System-defined FunctionsThe followi
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System-defined FunctionsCount Funct
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System-defined FunctionsResult Data
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Chapter 3: Writing Scripts and Proc
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ScriptsDeclare local variables that
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ScriptsUserEventSpecifies a user ev
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ScriptsExample—Field and Menu Ite
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ProceduresOpenROAD lets you create
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ProceduresReturning from a Procedur
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ProceduresExample—Local Procedure
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Procedures4GL DataTypedatemoneyfloa
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Calling Procedures• In this call
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Calling ProceduresparameterAssigns
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How Procedure Handles Work (ProcHan
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Compiler LimitationsYou can avoid t
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How You Can Invoke FramesHow the Cu
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How You Can Invoke FramesHow You Ca
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How You Can Invoke FramesFor more i
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How You Can Invoke FramesFor exampl
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How You Can Invoke FramesIf the obj
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How You Can Invoke FramesHow You Ca
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How You Can Invoke Frames• Prompt
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How You Can Invoke FramesThe syntax
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How You Can Run Non-interactive App
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How You Can Reference ObjectsHow Yo
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How You Can Reference ObjectsHow Yo
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How You Can Reference ObjectsUse an
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Using an Object-oriented Approach t
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InheritanceClass RelationshipsYou c
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InheritanceYou can specify a user c
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InheritanceThe Terminate method is
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How You Can Create a User ClassWhen
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How You Can Create a User ClassHow
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How You Can Create a User Class3. G
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How You Can Create a User ClassTo e
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External ClassesHow You Can Use Ext
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External ClassesExample—ActiveX C
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How You Can Manipulate Objects Gene
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Overview of the OpenROAD System Cla
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How You Can Access a Database with
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How You Can Manage TransactionsHow
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How You Can Manage TransactionsDivi
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How You Can Manage TransactionsTo c
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How Programming for Multiple Sessio
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Handling Database ErrorsIn OpenROAD
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Handling Database ErrorsIf a databa
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Handling Database ErrorsFor example
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Handling Database Errorsbeginerr_no
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Arrays and Table Fields—Conceptua
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ArraysBecause an individual attribu
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ArraysDeclaring an array variable d
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Page 216 and 217: ArraysHow You Can Add Rows to an Ar
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Page 224 and 225: ArraysAttributes used in a sort can
Page 226 and 227: ArraysThe format parameter can be a
Page 228 and 229: Table FieldsTable Fields and Associ
Page 230 and 231: Table FieldsThe following applicati
Page 232 and 233: Table FieldsThis syntax references
Page 234 and 235: Table FieldsFor example, the follow
Page 236 and 237: Table Field OperationsTable Field C
Page 238 and 239: Table Field OperationsHow You Can U
Page 240 and 241: Table Field OperationsWhen you use
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Page 244 and 245: Table Field OperationsThe following
Page 246 and 247: Table Field OperationsHow You Can T
Page 248 and 249: Table Field OperationsTableField Me
Page 250 and 251: Table Field OperationsFor example,
Page 252 and 253: Table Field OperationsControlling M
Page 254 and 255: CollectionsCollectionsA collection
Page 256 and 257: Collections// Open a workbook and p
Page 258 and 259: Listview_Treeview_DemoImport the De
Page 260 and 261: Listview FieldsListview FieldsA lis
Page 264 and 265: Listview FieldsImageIndexSpecifies
Page 266 and 267: TreeNode and Tree ClassesHeaderClic
Page 268 and 269: TreeNode and Tree ClassesMaintenanc
Page 270 and 271: Treeview FieldsHow You Can Build a
Page 272 and 273: Treeview FieldsThe second window is
Page 274 and 275: Treeview FieldsThe tree_ex2_class h
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Page 279 and 280: How You Can Work with ImagesThe fol
Page 281 and 282: How You Can Work with ImagesThe Col
Page 283 and 284: How You Can Work with ImagesThe Bit
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Page 287 and 288: How You Can Work with Text StringsD
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Page 296 and 297: How You Can Call 3GL ProceduresIn t
Page 298 and 299: How You Can Use Exec 4GL Statements
Page 306 and 307: How You Can Link 3GL ProceduresHow
Page 308 and 309: Sample 3GL ProceduresExec 4GL and E
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How You Can Use Data Entry Error Ha
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How You Can Use Data Entry Error Ha
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Chapter 12: Managing Event QueuesTh
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Event-based ProgrammingThe followin
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Event-based ProgrammingEvent TypesT
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Event-based ProgrammingField Events
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Event-based ProgrammingBecause all
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Event-based ProgrammingThe followin
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Event-based ProgrammingThe resume s
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Event-based ProgrammingNote: The da
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Communicating Between OpenROAD Fram
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How You Can Communicate with an Ext
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How You Can Communicate Between Ope
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How You Can Communicate Between Ope
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Chapter 14: Creating Dynamic Frames
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How You Can Change Field and Frame
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How You Can Create and Modify Field
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How You Can Remove Fields Dynamical
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How You Can Declare a Composite Fie
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How You Can Manipulate Data in Dyna
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How You Can Manage Operations with
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How You Can Build a Frame Dynamical
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Dynamic Statements ConsiderationsDy
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How You Can Write an AssistantNote:
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How You Can Write an AssistantFirst
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How You Can Write an AssistantBecau
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How You Can Ensure Compatibility Be
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Chapter 17: Preprocessing Your 4GL
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PreprocessorGeneral Preprocessor St
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PreprocessorThe #define StatementTh
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Error ProcessingGuidelines for Usin
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Chapter 18: Debugging Your Applicat
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How You Can Test an ApplicationHow
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How You Can Use Break ConditionsTo
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How You Can Use Break Conditions3.
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How You Can Use Break ConditionsWay
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How You Can Use Break ConditionsSet
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How You Can Use Break Conditions•
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How You Can Use Break ConditionsMet
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How You Can Log Trace InformationDa
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How You Can Monitor a Running Appli
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How You Can Monitor a Running Appli
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How You Can Debug Database QueriesT
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How Debugging an Application WorksS
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How Debugging an Application WorksH
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How Debugging an Application WorksW
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How Debugging an Application WorksH
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How Debugging an Application WorksW
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How Debugging an Application WorksL
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How Debugging an Application WorksA
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Appendix A: SQL Syntax SummaryThis
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SQL Syntax Summarygrant all [privil
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OpenSQL Syntax SummaryOpenSQL Synta
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Operating System CommandsThe follow
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BitmapObject classThe BitmapObject
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external classAn external class def
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local variableLocal variables conta
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StringObject classThe StringObject
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Index'' ' (single quotation marks)c
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Attributesdefined • 28referencing
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using to copy data • 244using wit
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application threads • 444array di
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examining values • 473hexadecimal
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Gmoney • 51numeric list • 53pad
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Namesapplication • 21dynamic •
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ReadOps attributesettings • 243Re
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concat function • 54functions •
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event chains • 323event queue •
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