List Image Column Current Item (PRIM_LIST.ImageCurrentItem)
Provides access to the Image for the current list item
Ancestors - List Current Item (PRIM_LIST.CurrentItem)Object (PRIM_OBJT)
Details
Prim_List.Image is a column in a List used to display images. Each column type has a corresponding Column class that provides access to the individual entries in the column. The image for each item can be modified independently using the current item for the column in the same way that other visual LANSA lists allow the current item for the list to be used. An image column is created whenever an Image control is dropped on the list. If a Blob field is dropped on the list, the Source property will be set to the field and it will be used as a column in the underlying working list. If the field value at run time contains a valid image file, the image will be shown. This is a simple and convenient shortcut that simplifies the processing of text and image data when being read from a database.
Example
This example shows a 4 column list, each using a repository field as the source. The image column has a source of a Blob field EMPTHM. This is rendered as an image at runtime.
Begin_Com Role(*EXTENDS #PRIM_WEB) Height(456) Width(864)
Define_Com Class(#PRIM_LIST) Name(#List) Displayposition(1) Left(8) Parent(#COM_OWNER) Tabposition(1) Top(8) Height(433) Width(841) Rowheight(28) Rowlines(False) Columnlines(False)
Define_Com Class(#PRIM_LIST.Image) Name(#ColumnEMPTHM1) Displayposition(1) Parent(#List) Source(#EMPTHM) Columnwidth(43) Imagesizing(BestFit) Cellmargintop(2) Cellmarginbottom(2)
Define_Com Class(#PRIM_LIST.String) Name(#ColumnEMPNO1) Displayposition(2) Parent(#List) Source(#EMPNO) Columnwidth(104)
Define_Com Class(#PRIM_LIST.String) Name(#ColumnSURNAME1) Displayposition(3) Parent(#List) Source(#SURNAME)
Define_Com Class(#PRIM_LIST.String) Name(#ColumnGIVENAME1) Displayposition(4) Parent(#List) Source(#GIVENAME)
Def_List Name(#Employees) Fields(#Empno #Surname #Givename #Empthm) Type(*working) entrys(*Max)
Mthroutine Name(Load)
Define_Com Class(#xDemoDataServices.GetEmployees) Name(#GetEmployees)
#GetEmployees.ExecuteAsync( #Employees )
Evtroutine Handling(#GetEmployees.Completed)
Selectlist Named(#Employees)
Add_Entry To_List(#List)
Endselect
Endroutine
Endroutine
End_Com
Properties
| Name | Description |
|---|---|
| ComponentClassName | ComponentClassName is the name of the component's class. Inherited from Object (PRIM_OBJT) |
| ComponentMembers | ComponentMembers provides access to all the member components of this component Inherited from Object (PRIM_OBJT) |
| ComponentPatternName | ComponentPatternName is used to qualify the class of the component. Inherited from Object (PRIM_OBJT) |
| ComponentTag | Generic space allowing a value to be stored for the instance Inherited from Object (PRIM_OBJT) |
| ComponentType | ComponentType gives you access to the type information about the component Inherited from Object (PRIM_OBJT) |
| ComponentTypeName | ComponentTypeName is the fully qualified name of the component's class. Inherited from Object (PRIM_OBJT) |
| Enabled | Enable or disable the list item Inherited from List Current Item (PRIM_LIST.CurrentItem) |
| Hint | Hint to be shown for the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem) |
| HintPopup | HintPopup to be shown for the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem) |
| HintTitle | Hint title to be shown for the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem) |
| Image | Repository enrolled image to show in the control |
| ImageAlignment | Position of the image within the view port |
| ImageFileName | File name of the image |
| ImageHeight | Height of the image. See ImageUnits |
| ImageLeft | Left position of the image. See ImageUnits |
| ImageOpacity | Percentage Opacity of the image |
| ImageSizing | Defines how the original image is sized |
| ImageTop | Top position of the image. See ImageUnits |
| ImageUnits | Specifies whether the image is measured using pixels or percentages |
| ImageWidth | Width of the image. See ImageUnits |
| MouseOverStyle | Style to be applied when the mouse enters the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem) |
| MouseOverStyles | Collection of styles to be applied when the mouse enters the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem) |
| Name | Name identifies the component Inherited from Object (PRIM_OBJT) |
| Owner | Owner owns this component Inherited from Object (PRIM_OBJT) |
| Parent | The component instance to which this instance is attached. The visual container for a control or the collector of a set of child instances Inherited from Object (PRIM_OBJT) |
| Popup | Popup to be shown for the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem) |
| Style | Style to be applied to the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem) |
| Styles | Collection of styles to be applied to the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem) |
| ThemeDrawStyle | ThemeDrawStyle to be applied to the current item in the column Inherited from List Current Item (PRIM_LIST.CurrentItem) |
| Visible | Show or hide the list item Inherited from List Current Item (PRIM_LIST.CurrentItem) |
Events
| Name | Description |
|---|---|
| CreateInstance | CreateInstance is signalled when an instance of a component is created Inherited from List Current Item (PRIM_LIST.CurrentItem) |
| DestroyInstance | DestroyInstance is signalled when an instance of a component is about to be destroyed Inherited from List Current Item (PRIM_LIST.CurrentItem) |
Methods
| Name | Description |
|---|---|
| SetFocus | Sets focus to the currentitem in the list Inherited from List Current Item (PRIM_LIST.CurrentItem) |
See also
LANSA Version 15, April 2020