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

NameDescription
ComponentClassNameComponentClassName is the name of the component's class. Inherited from Object (PRIM_OBJT)
ComponentMembersComponentMembers provides access to all the member components of this component Inherited from Object (PRIM_OBJT)
ComponentPatternNameComponentPatternName is used to qualify the class of the component. Inherited from Object (PRIM_OBJT)
ComponentTagGeneric space allowing a value to be stored for the instance Inherited from Object (PRIM_OBJT)
ComponentTypeComponentType gives you access to the type information about the component Inherited from Object (PRIM_OBJT)
ComponentTypeNameComponentTypeName is the fully qualified name of the component's class. Inherited from Object (PRIM_OBJT)
EnabledEnable or disable the list item Inherited from List Current Item (PRIM_LIST.CurrentItem)
HintHint to be shown for the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem)
HintPopupHintPopup to be shown for the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem)
HintTitleHint title to be shown for the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem)
ImageRepository enrolled image to show in the control
ImageAlignmentPosition of the image within the view port
ImageFileNameFile name of the image
ImageHeightHeight of the image. See ImageUnits
ImageLeftLeft position of the image. See ImageUnits
ImageOpacityPercentage Opacity of the image
ImageSizingDefines how the original image is sized
ImageTopTop position of the image. See ImageUnits
ImageUnitsSpecifies whether the image is measured using pixels or percentages
ImageWidthWidth of the image. See ImageUnits
MouseOverStyleStyle to be applied when the mouse enters the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem)
MouseOverStylesCollection of styles to be applied when the mouse enters the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem)
NameName identifies the component Inherited from Object (PRIM_OBJT)
OwnerOwner owns this component Inherited from Object (PRIM_OBJT)
ParentThe 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)
PopupPopup to be shown for the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem)
StyleStyle to be applied to the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem)
StylesCollection of styles to be applied to the current column/item Inherited from List Current Item (PRIM_LIST.CurrentItem)
ThemeDrawStyleThemeDrawStyle to be applied to the current item in the column Inherited from List Current Item (PRIM_LIST.CurrentItem)
VisibleShow or hide the list item Inherited from List Current Item (PRIM_LIST.CurrentItem)

Events

NameDescription
CreateInstanceCreateInstance is signalled when an instance of a component is created Inherited from List Current Item (PRIM_LIST.CurrentItem)
DestroyInstanceDestroyInstance is signalled when an instance of a component is about to be destroyed Inherited from List Current Item (PRIM_LIST.CurrentItem)

Methods

NameDescription
SetFocusSets focus to the currentitem in the list Inherited from List Current Item (PRIM_LIST.CurrentItem)

See also

All Component Classes

Technical Reference

LANSA Version 15, April 2020