The CHECKBOX control displays a check box. It represents a boolean value of an adapter property.
The following topics are covered below:
The XML layout definition is:
<rowarea name="Checkboxes">
<itr>
<checkbox valueprop="marked">
</checkbox>
<label name="Marked" asplaintext="true">
</label>
</itr>
</rowarea>
The corresponding Java code of the adapter is:
// property >marked<
boolean m_marked;
public boolean getMarked() { return m_marked; }
public void setMarked(boolean value) { m_marked = value; }
| Basic | |||
| valueprop |
Name of adapter property that is represented by checkbox. The property must be of type "boolean" or "Boolean" (or "String"). |
Obligatory | |
| comment |
Comment without any effect on rendering and behaviour. The comment is shown in the layout editor's tree view. |
Optional | |
| Appearance | |||
| 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. |
Optional |
100 120 140 160 180 200 50% 100% |
| displayonly |
If set to true, the FIELD will not be accessible for input. It is just used as an output field. |
Optional |
true false |
| 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 two 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 |
| 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 |
| Label | |||
| name |
Text that is displayed inside the control. Please do not specify the name when using the multi language management - but specify a "textid" instead. |
Optional | |
| textid |
Multi language dependent text that is displayed inside the control. The "textid" is translated into a corresponding string at runtime. Do not specify a "name" inside the control if specifying a "textid". |
Optional | |
| hdistpixelwidth |
Witdh of the distance between checkbox and label in pixel. |
Optional | |
| labelstyle |
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 |
background-color: #FF0000 color: #0000FF font-weight: bold |
| Binding | |||
| valueprop | (already explained above) | ||
| displayprop |
Name of adapter property that controls whether the field is displayonly(true) or not (false). By using this property you can dynamically control the "display"-status of the control by your adapter object. |
Optional | |
| statusprop |
Name of the adapter property that dynamically passes information how the field should be rendered and how it should act. |
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 method to be called 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 | |
| title |
Text that is shown as tooltip for the control. Either specify the text "hard" by using this TITLE property - or use the TITLETEXTID in order to define a language dependent literal. |
Optional | |
| titletextid |
Text ID that is passed to the multi lanaguage management - representing the tooltip text that is used for the control. |
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 | |
Typically, the CHECKBOX is followed by a LABEL control naming the
displayed check box. In the LABEL definition, set the property
asplaintext to
"true".
