List Image Column (PRIM_LIST.Image)

Column displaying an image

Ancestors - List Column (PRIM_LIST.Column)Object (PRIM_OBJT)

Details

Prim_List.Image is a column in a List used to display images.

Each column type has a corresponding CurrentItem class that provides access to the individual entries in the column accessible via the CurrentItem property.

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
CellAlignment	Position of the content of a list cell. Inherited from List Column (PRIM_LIST.Column)
CellHeight	Height of the cell in pixels when not overridden by CellSizing Inherited from List Column (PRIM_LIST.Column)
CellMarginBottom	Bottom margin of the cell in pixels when not overridden by CellSizing Inherited from List Column (PRIM_LIST.Column)
CellMarginLeft	Left margin of the cell in pixels when not overridden by CellSizing Inherited from List Column (PRIM_LIST.Column)
CellMarginRight	Right margin of the cell in pixels when not overridden by CellSizing Inherited from List Column (PRIM_LIST.Column)
CellMarginTop	Top margin of the cell in pixels when not overridden by CellSizing Inherited from List Column (PRIM_LIST.Column)
CellSizing	Sizing behavior of a list cell allowing for the content to only use a portion of the cell Inherited from List Column (PRIM_LIST.Column)
CellThemeDrawStyle	Drawstyle to be used on list cell
CellWidth	Width of the cell in pixels when not overridden by CellSizing Inherited from List Column (PRIM_LIST.Column)
ColumnCaption	Caption displayed in the column header Inherited from List Column (PRIM_LIST.Column)
ColumnCaptionAlign	Alignment of the text in the column header Inherited from List Column (PRIM_LIST.Column)
ColumnCaptionText	Caption displayed in the column header Inherited from List Column (PRIM_LIST.Column)
ColumnCaptionWordWrap	Wrap text on to the next line if there is insufficient space Inherited from List Column (PRIM_LIST.Column)
ColumnImage	Image to be show in the column heading Inherited from List Column (PRIM_LIST.Column)
ColumnImageHeight	Set the height and width of the column image in pixels Inherited from List Column (PRIM_LIST.Column)
ColumnMaxWidth	Maximum allow width of the column in pixels Inherited from List Column (PRIM_LIST.Column)
ColumnMinWidth	Minimum allow width of the column in pixels Inherited from List Column (PRIM_LIST.Column)
ColumnMouseOverStyle	Style to be applied to the column header on mouseOver Inherited from List Column (PRIM_LIST.Column)
ColumnMouseOverStyles	Collection of styles to be applied to the column header on mouseOver Inherited from List Column (PRIM_LIST.Column)
ColumnPinned	Pin the column to the left or right hand sides of the list Inherited from List Column (PRIM_LIST.Column)
ColumnPopup	Popup Panel to display as a menu Inherited from List Column (PRIM_LIST.Column)
ColumnPopupImage	Image to display in the column header in place of the default image Inherited from List Column (PRIM_LIST.Column)
ColumnPressedStyle	Style to be applied to the column header on click Inherited from List Column (PRIM_LIST.Column)
ColumnPressedStyles	Collection of styles to be applied to the column header on mouseOver Inherited from List Column (PRIM_LIST.Column)
ColumnResize	Specifies whether the column can be manually resized Inherited from List Column (PRIM_LIST.Column)
ColumnStyle	Style to be applied to the column Inherited from List Column (PRIM_LIST.Column)
ColumnStyles	Collection of styles to be applied to the column Inherited from List Column (PRIM_LIST.Column)
ColumnThemeDrawStyle	Name of the Theme DrawStyle to be applied to the column heading Inherited from List Column (PRIM_LIST.Column)
ColumnUnits	Specifies whether the column is a specific width or uses a proportion of the available space (See ColumnWidth) Inherited from List Column (PRIM_LIST.Column)
ColumnVisible	Show or hide the column Inherited from List Column (PRIM_LIST.Column)
ColumnWidth	Width of the column. See the ColumnUnits property Inherited from List Column (PRIM_LIST.Column)
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)
CurrentItem	The last item in the list touched either in the UI or via a list related command
DisplayPosition	Position of the column relative to the other columns Inherited from List Column (PRIM_LIST.Column)
Enabled	Enable or disable the column contents Inherited from List Column (PRIM_LIST.Column)
FocusItem	Reference to the focus item in the column
Image	Repository enrolled image to show in the control
ImageAlignment	Position of the image within the view port
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
Name	Name identifies the component Inherited from Object (PRIM_OBJT)
Owner	Owner owns this component Inherited from Object (PRIM_OBJT)
Parent	Reference to the list containing the column Inherited from List Column (PRIM_LIST.Column)
SortAsColumn	Specifies an alternate column to use to sort the data Inherited from List Column (PRIM_LIST.Column)
SortDirection	Sort the column ascending or descending Inherited from List Column (PRIM_LIST.Column)
SortPosition	Position of the column in the sort sequence Inherited from List Column (PRIM_LIST.Column)
Source	Field to be used as a source for the column. Blob fields containing images will show the image
Style	Styles to be applied to the item Inherited from List Column (PRIM_LIST.Column)
Styles	Collection of styles to be applied to the item Inherited from List Column (PRIM_LIST.Column)
ThemeDrawStyle	ThemeDrawStyle to be applied to the column Inherited from List Column (PRIM_LIST.Column)
Visible	Show or hide the content of a cell Inherited from List Column (PRIM_LIST.Column)

Events

Name	Description
Click	Fired when the mouse is clicked on the control
ColumnClick	Fired when the column header is clicked Inherited from List Column (PRIM_LIST.Column) Origin, Handled
ColumnDoubleClick	Fired when the column header is DoubleClicked Inherited from List Column (PRIM_LIST.Column) Origin, Handled
ColumnMouseEnter	Fired when the mouse enters the bounds of the column Inherited from List Column (PRIM_LIST.Column)
ColumnMouseLeave	Fired when the mouse leaves the bounds of the column Inherited from List Column (PRIM_LIST.Column)
CreateInstance	CreateInstance is signaled when an instance of a component is created Inherited from List Column (PRIM_LIST.Column)
DestroyInstance	DestroyInstance is signaled when an instance of a component is about to be destroyed Inherited from List Column (PRIM_LIST.Column)
DoubleClick	Fired when the user double clicks

Methods

Name	Description
SizeToContents	Set the column width to the widest content Inherited from List Column (PRIM_LIST.Column)

Content

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