Using Zen Components - InterSystems Documentation

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Zen Controls5.10 HiddenThe Zen control is a wrapper around the HTML element. The controlis present in the form, and has a value associated with it, but is never visible to the user. The value can be changed programmaticallyon the client or server side. When the form is submitted, the values of any controls are submitted alongwith all the others. has the same general-purpose attributes as any Zen control. For descriptions, see the section “Control Attributes.”150 Using Zen Components
6Model View ControllerModel View Controller, or MVC, is a well known architecture for user interface design. This chapter describes how Zenimplements MVC, and how to add MVC features to a Zen page.To simplify the flow of data from a data source to a Zen page, Zen provides a set of classes that let you define a data model(the model) and connect it to a set of Zen components (the view) via an intermediate object (the controller). When the modelassociated with a controller changes, these changes are automatically broadcast to all views connected to the controller.The following are some typical uses of MVC:• Create a form that displays a set of properties, loaded from a persistent object within the database. The form automaticallydisplays controls appropriate to the data type of each property.• Display a chart based on values within a form. The chart automatically updates its display whenever the user submitsany changes to the form.• Display meters representing values calculated on the server. When the page is refreshed, these meters automaticallyupdate themselves with current values from the server.The following figure shows the three parts of the Zen MVC architecture — model, view, and controller — and indicateswhere these objects execute their code. The controller and its associated views are Zen components, placed on the Zenpage. The controller component is hidden from view, but view components are user-visible. The view components displaydata values, which they obtain by requesting them from the controller. The controller resides on the client, but has theability to execute code on the server. The model resides entirely on the server. It draws its data values from a source on theserver and can respond to requests for data from the controller.Using Zen Components 151
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Using Zen ComponentsVersion 2012.23
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5.6 Selections ....................
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9 Other Zen Components ............
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List of TablesTable 1-1: XML Entiti
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1Zen TablesA Zen table is data-driv
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Data Sources1.2 Data SourcesA elem
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Data SourcesAttributewhereClauseDes
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Data SourcesAttributeOnExecuteResul
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Data SourcesPropertyrowCountDescrip
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Table Columns1.4 Table ColumnsThe
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Table ColumnsAttributeOnDrawCellDes
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Conditional Style for Rows or Cells
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Snapshot ModePredicateNEQSTARTSWITH
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Column Filters1.8 Column FiltersA Z
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Column LinksThis example uses the
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User InteractionsThis example does
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User InteractionsFor columns that c
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Table Touchups1.12 Table TouchupsAn
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Zen and SVG2.2 SVG Component Layout
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Zen and SVGAttributeZen componentat
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Zen and SVGAttributesnapToGridsvgAu
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Zen and SVGThe Zen element takes u
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Zen and SVG• • • • • •
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Zen and SVGAttributethresholdUpperv
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Zen and SVG2.4.5 The light bar prov
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Zen and SVGThe smiley is the famili
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Zen and SVG2.5 ChartsCharts are SVG
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Zen and SVGAttributecaptiononclickD
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3Zen ChartsThis chapter explains ho
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Types of Chart• High/Low Charts
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Types of ChartYou can supply up to
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Types of ChartFigure 3-7: Combo Cha
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Types of ChartFigure 3-10: Area Cha
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Types of ChartFigure 3-12: Line Cha
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Types of ChartA that plots the ite
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Types of ChartFigure 3-15: Pie Char
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Types of ChartFigure 3-17: How Zen
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Providing Data for Zen Page ChartsA
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Providing Data for Zen Page ChartsP
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Providing Data for Zen Page Charts1
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Chart Layout, Style, and BehaviorFi
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Chart Layout, Style, and BehaviorAt
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Chart Layout, Style, and BehaviorAt
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Chart Axes3.3.6 User SelectionsThe
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Chart AxesFigure 3-21: Same data Pl
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4Zen FormsForms permit the user to
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User InteractionsFigure 4-1: Class
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Defining a FormAttributekeymethodne
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Providing Values for a FormAttribut
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Errors and Invalid ValuesExecute th
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User Login FormsUser ViewpointIn th
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Page 112 and 113: Zen ControlsTable 5-1: Control Comp
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Page 116 and 117: Zen Controls• — The user click
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Page 120 and 121: Zen ControlsNote:For an example of
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Page 124 and 125: Zen Controls5.6.4 The component di
Page 126 and 127: Zen ControlsAttributevalueListDescr
Page 128 and 129: Zen Controlscan simply appear when
Page 130 and 131: Zen ControlsThe Zen control is not
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Page 134 and 135: Zen Controls• Solutions to proble
Page 136 and 137: Zen ControlsAttributescrollIntoView
Page 138 and 139: Zen Controls5.7.5.3 Logical and Di
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Page 150 and 151: Zen Controls5.9 GridThe control di
Page 152 and 153: Zen ControlsFigure 5-1: Data Model
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Page 201 and 202: Links7.1 LinksThe following Zen com
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Tabslabel="Color:" name="Color" />T
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Tabs has the following attributes:A
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Trees7.4 TreesThe following Zen com
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TreesThis definition references a n
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Trees7.4.2.1 Using a GlobalThe sim
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Trees• The method returns a %Bool
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Trees#; child nodes are placed unde
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TreesAttributeshowLinesonchangeDesc
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FiltersEvery component automatical
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Filters• An array passed by refer
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8Popup Windows and DialogsThis chap
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Modal GroupsNo data entered yet. 5.
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Modal Groups- An optional width val
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Modal Groups3. Finally, you must re
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Modal GroupsClicking OK on the popu
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Popup WindowsTable 8-1: Client Side
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Popup WindowsArgumentpageNamefeatur
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Dialogs8.3.2 Color Selection Dialog
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Dialogs• Copy the class %ZEN.Dial
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Other Zen ComponentsThe content may
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Other Zen ComponentsIE is different
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Other Zen ComponentsreadOnly="true"
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Other Zen ComponentsAttributecurrSl
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Other Zen ComponentsOn the output s
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Other Zen Components• pHeaders is
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Other Zen ComponentsAttributeidDesc
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Other Zen ComponentsAttributecaptio
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Other Zen ComponentsAttributeonsele
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Other Zen ComponentsAttributeZen co
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IndexSymbols%OnSubmit, 96%query, 15
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colorPane face, 246colorPane onchan
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dateText separator, 139dateText sho
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frameAlign, iframe, 241frameBorder,
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link style, 192link target, 192link
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onclick, link, 192onclick, menuItem
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plotStyle, chart, 80plotToEdge, 80p
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showTime, 135, 139showTime, calenda
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title, yAxis, 86titleList, 112, 115
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