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Difference between revisions of "HowTo:Create a new ViewItem"


 
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In a view are different [[ViewItem]]`s used to evaluate the [[Relation]]s or [[Reference]]s between [[MetaClass]]es. This is seen in the View Test Environment.
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__NOTOC__
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There are three different ''ViewItems'' in the namespace ''Custom.View.Items'' via the ''[[Class Browser]]''<br/>[[File:UI viewitem 01.PNG|thumb|330 px|border|alt=ViewItem|ViewItem]]
  
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==ReferenceViewItem==
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Use this to evaluate hierarchy informations between objects using [[REFERENCE|references]]:
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# Create a new instance of a '''[[REFERENCEVIEWITEM|ReferenceViewItem]]''' using the ''[[Bulk Editor]]''<br/>[[File:UI viewitem 03.PNG|990 px|border|alt=View|View]]
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# Set the name of the reference property in the '''REFERENCE''' cell
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# Set the '''REVERSE''' checkbox if the ''ReferenceViewItem'' should be evaluated from right to left instead of left to right
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# Assign a query instance of the ''ReferenceViewItem'' to the '''REVERSEREFTYPE''' attribute either by
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#* dragging and dropping a metaclass object onto the cell
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#* selecting the desired MetaClass from the dialog appearing after double-clicking the cell
  
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== RelationViewItem ==
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Use this to evaluate hierarchy informations between objects using [[RELATION|relations]]:
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# Create a new instance of a '''[[RELATIONVIEWITEM|RelationViewItem]]''' using the ''[[Bulk Editor]]''<br/>[[File:UI viewitem 04.PNG|990 px|border|alt=View|View]]
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# Set the '''REVERSE''' checkbox if the ''RelationViewItem'' should be evaluated from right to left instead of left to right
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# Assign a query instance of the ''RelationViewItem'' to the '''RELATION''' attribute either by
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#* dragging and dropping a relation object onto the cell
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#* selecting the desired Relation from the dialog appearing after double-clicking the cell
  
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== QueryViewItem ==
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Use this to place a query within a view:
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# Create a new instance of a '''[[QUERYVIEWITEM|QueryViewItem]]''' using the ''[[Bulk Editor]]''<br/>[[File:UI viewitem 02.PNG|880 px|border|alt=View|View]]
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# Assign a query instance of the ''QueryViewItem'' to the '''QUERY''' attribute either by
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#* Drag and drop a query object onto the cell
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#* Select the desired Query from the dialog appearing after double-clicking the cell
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== For all ViewItems ==
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# Set at least name and description
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# The required ViewItem's must be added to the view with the ''[[Relation Editor]]''.<br/>[[File:UI_view_03.png|330 px|border|alt=View|View]]
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# Save the changes with {{key press|Ctrl|S}} or the save command
  
 
==See also==
 
==See also==
* [[Create a new View]]
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* [[HowTo:Create a new View]]
 
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* [[HowTo:Create a new ReferenceViewItem automatically]]
 
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[[Category:How-To]]
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[[Category:How-To|Create a new ViewItem]]

Latest revision as of 06:58, 2 April 2024

There are three different ViewItems in the namespace Custom.View.Items via the Class Browser
ViewItem
ViewItem

ReferenceViewItem

Use this to evaluate hierarchy informations between objects using references:

  1. Create a new instance of a ReferenceViewItem using the Bulk Editor
    View
  2. Set the name of the reference property in the REFERENCE cell
  3. Set the REVERSE checkbox if the ReferenceViewItem should be evaluated from right to left instead of left to right
  4. Assign a query instance of the ReferenceViewItem to the REVERSEREFTYPE attribute either by
    • dragging and dropping a metaclass object onto the cell
    • selecting the desired MetaClass from the dialog appearing after double-clicking the cell

RelationViewItem

Use this to evaluate hierarchy informations between objects using relations:

  1. Create a new instance of a RelationViewItem using the Bulk Editor
    View
  2. Set the REVERSE checkbox if the RelationViewItem should be evaluated from right to left instead of left to right
  3. Assign a query instance of the RelationViewItem to the RELATION attribute either by
    • dragging and dropping a relation object onto the cell
    • selecting the desired Relation from the dialog appearing after double-clicking the cell

QueryViewItem

Use this to place a query within a view:

  1. Create a new instance of a QueryViewItem using the Bulk Editor
    View
  2. Assign a query instance of the QueryViewItem to the QUERY attribute either by
    • Drag and drop a query object onto the cell
    • Select the desired Query from the dialog appearing after double-clicking the cell

For all ViewItems

  1. Set at least name and description
  2. The required ViewItem's must be added to the view with the Relation Editor.
    View
  3. Save the changes with Ctrl+S or the save command

See also