NaturalONE Version 8.3.7
 —  Natural for Ajax  —

COMBODYN2

The COMBODYN control is the dynamic counterpart of the COMBOFIX control. Whereas the selection options inside the COMBOFIX control are defined in a fixed way inside the page definition, the COMBODYN2 control offers the possibility to control the selection options dynamically in the application.

The following topics are covered below:


Adapter Interface

1 COSTCENTER (U) DYNAMIC
1 VALIDCOSTCENTERS (1:*)
2 ID (U) DYNAMIC
2 NAME (U) DYNAMIC
2 SELECTED (L)

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Properties

Basic
valueprop

Name of the adapter parameter that provides the content of the control.

Obligatory  
validvaluesprop

Name of the adapter parameter that provides the valid values that are available as selectable options.

Obligatory  
width

Width of the control.

There are three possibilities to define the width:

(A) You do not define a width at all. In this case the width of the control will either be a default width or - in case of container controls - it will follow the width that is occupied by its content.

(B) Pixel sizing: just input a number value (e.g. "100").

(C) Percentage sizing: input a percantage value (e.g. "50%"). Pay attention: percentage sizing will only bring up correct results if the parent element of the control properly defines a width this control can reference. If you specify this control to have a width of 50% then the parent element (e.g. an ITR-row) may itself define a width of "100%". If the parent element does not specify a width then the rendering result may not represent what you expect.

Sometimes obligatory

100

120

140

160

180

200

50%

100%

comment

Comment without any effect on rendering and behaviour. The comment is shown in the layout editor's tree view.

Optional  
Appearance
width (already explained above)    
size

Number of rows that are displayed inside the control. If specified as "1" (default) then the control is rendered as combo box - if ">1" then the control is rendered as multi line selection.

Optional  
displayonly

If set to true, the FIELD will not be accessible for input. It is just used as an output field.

Optional  
direction

Presets the default(BiDi) direction of the control. Use black string in order to have the default value.

Optional

rtl

ltr

align

Horizontal alignment of control in its column.

Each control is "packaged" into a column. The column itself is part of a row (e.g. ITR or TR). Sometimes the size of the column is bigger than the size of the control itself. In this case the "align" property specifies the position of the control inside the column. In most cases you do not require the align control to be explicitly defined because the size of the column around the controls exactly is sized in the same way as the contained control.

If you want to directly control the alignment of text: in most text based controls there is an explicit property "textalign" in which you align the control's contained text.

Optional

left

center

right

valign

Vertical alignment of control in its column.

Each control is "packaged" into a column. The column itself is part of a row (e.g. ITR or TR). Sometimtes the size of the column is bigger than the size of the control. In this case the "align" property specify the position of the control inside the column.

Optional

top

middle

bottom

colspan

Column spanning of control.

If you use TR table rows then you may sometimes want to control the number of columns your control occupies. By default it is "1" - but you may want to define the control to span over more than one columns.

The property only makes sense in table rows that are snychronized within one container (i.e. TR, STR table rows). It does not make sense in ITR rows, because these rows are explicitly not synched.

Optional

1

2

3

4

5

50

int-value

rowspan

Row spanning of control.

If you use TR table rows then you may sometimes want to control the number of rows your control occupies. By default it is "1" - but you may want to define the control to span over more than one columns.

The property only makes sense in table rows that are snychronized within one container (i.e. TR, STR table rows). It does not make sense in ITR rows, because these rows are explicitly not synched.

Optional

1

2

3

4

5

50

int-value

renderasfield

If set to "true" then the combo box is rendered like a FIELD control that offers valid value support.

Default is "false".

The normal translation of COMBODYN2 into HTML renders an HTML-select control. This control has certain limitations inside Internet Explorer: it only offers a very reduced set of styles to manipulate its look and feel and - much worse: it always occupies z-index "0" i.e. if you other areas overlapping the COMBODYN2 area then COMBODYN2 is always on the top. This is quite ugly if e.g. a menu is opened and parts of the menu overlap a COMBODYN2 control.

Optional

true

false

allowmultiselection

If set to true then multiple selections are allowed.

Optional

true

false

combostyle

CSS style definition that is directly passed into this control.

With the style you can individually influence the rendering of the control. You can specify any style sheet expressions. Examples are:

border: 1px solid #FF0000

background-color: #808080

You can combine expressions by appending and separating them with a semicolon.

Sometimes it is useful to have a look into the generated HTML code in order to know where direct style definitions are applied. Press right mouse-button in your browser and select the "View source" or "View frame's source" function.

Optional  
invisiblemode

If the visibility of the control is determined dynamically by an adapter property then there are two rendering modes if the visibility is "false":

(1) "invisible": the control is not visible.

(2)"cleared": the control is not visible but it still occupies space.

Optional

invisible

cleared

tabindex

Index that defines the tab order of the control. Controls are selected in increasing index order and in source order to resolve duplicates.

Optional

-1

0

1

2

5

10

32767

datatype

By default, the control is managing its content as string. By explicitly setting a datatype you can define that the control will format the data coming from the server: if the field has datatype "date" and the user inputs "010304" then the input will be translated into "01.03.2004" (or other representation, dependent on date format settings).

Please note: the datatype "float" is named a bit misleading - it represents any decimal format number. The server side representation may be a float value, but also can be a double or a BigDecimal property.

Optional

xs:string

------------------------

N n.n

P n.n

string n

Binding
valueprop (already explained above)    
validvaluesprop (already explained above)    
displayprop

Name of the adapter parameter that dynamically passes information whether the field is displayonly("true") or not ("false"). Notice that in the Natural code the type for the field is alphanumeric.

Optional  
statusprop

Name of the adapter parameter that dynamically passes information how the control should be rendered and how it should act. Valid parameter values at runtime: "INVISIBLE", "FOCUS", "FOCUS_NO_SELECT", "ERROR", "ERROR_NO_FOCUS". Use DISPLAYPROP to dynamically define whether the field is displayonly.

Optional  
titleprop

Name of the adapter parameter that dynamically defines the title of the control. The title is displayed as tool tip when ther user moves the mouse onto the control.

Optional  
flush

Flushing behaviour of the input control.

By default an input into the control is registered within the browser client - and communicated to the server adapter object when a user e.g. presses a button. By using the FLUSH property you can change this behaviour.

Setting FLUSH to "server" means that directly after changing the input a synchronization with the server adapter is triggered. As consequence you directly can react inside your adapter logic onto the change of the corresponding value. - Please be aware of that during the synchronization always all changed properties - also the ones that were changed before - are transferred to the adapter object, not only the one that triggered the synchonization.

Setting FLUSH to "screen" means that the changed value is populated inside the page. You use this option if you have redundant usage of the same property inside one page and if you want to pass one changed value to all its representaion directly after changing the value.

Optional

screen

server

flushmethod

When the data synchronization of the control is set to FLUSH="server" then you can specify an explicit event to be sent when the user updates the content of the control. By doing so you can distinguish on the server side from which control the flush of data was triggered.

Optional  
Online Help
helpid

Help id that is passed to the online help management in case the user presses F1 on the control.

Optional  
titleprop (already explained above)    
Natural
njx:natname

If a Natural variable with a name not valid for Application Designer (for instance #FIELD1) shall be bound to the control, a different name (for instance HFIELD1) can be bound instead. If the original name (in this case #FIELD1) is then specified in this attribute, the original name is generated into the parameter data area of the Natural adapter and a mapping between the two names is generated into the PROCESS PAGE statement of the Natural adapter. This mapping must not break a once defined group structure. If for instance a grid control that is bound to a name of GRID1 contains fields that are bound to FIELD1 and FIELD2 respectively, the corresponding njx:natname values may be #GRID1.#FIELD1 and #GRID1.#FIELD2, but not #GRID1.#FIELD1 and #MYGRID1.#FIELD2.

Optional  
njx:natsysvar

If the control shall be bound to a Natural system variable, this attribute specifies the name of the system variable.

Optional  
njx:natsysio

If the control shall be bound to a Natural system variable with the attribute njx:natsysvar, this attribute indicates if the system variable is modifiable. The default is false.

Optional  
njx:natstringtype

If the control shall be bound to a Natural system variable of string format with the attribute njx:natsysvar, this attribute indicates the format of the string, A (code page) or U (Unicode). The default is A.

Optional  
njx:natcv

Name of a Natural control variable that shall be assigned to the control.

Optional  
njx:natcomment

The value of this attribute is generated as comment line into the parameter data area of the Natural adapter, before the field name. The Map Converter, for instance, uses this attributes to indicate for a generated statusprop variable to which field the statusprop belongs.

Optional  
Miscellaneous
testtoolid

Use this attribute to assign a fixed control identifier that can be later on used within your test tool in order to do the object identification

Optional  

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