How to use the ExecutePS function in selfVM
    (Updated Edited template to July 12, 2025.)
    No edit summary
    Line 1: Line 1:
    <message>Write the content here to display this box</message>
    <message>Write the content here to display this box</message>
    ==== NOTE: ExcutePS is replaced with selfVM.[[OCLOperators PSEval|PSEval]] - use that instead for new stuff ====
    ==== NOTE: ExcutePS is replaced with selfVM.[[Documentation:OCLOperators PSEval|PSEval]] - use that instead for new stuff ====
    This is a practical reference example of how to use the ExceutePS function from a ViewModel. There are many possible uses, but this one is fairly descriptive.  
    This is a practical reference example of how to use the ExceutePS function from a ViewModel. There are many possible uses, but this one is fairly descriptive.  


    Line 17: Line 17:
    If you have a million Thing objects in the database, this ViewModel will only load the ones with the same attribute1 as the Thing object you started with.  
    If you have a million Thing objects in the database, this ViewModel will only load the ones with the same attribute1 as the Thing object you started with.  


    '''See:''' [[OCLOperators_ExecutePS]]
    '''See:''' [[Documentation:OCLOperators ExecutePS|OCLOperators_ExecutePS]]
     
    [[Category:OCLPS]]
    [[Category:OCLPS]]
    [[Category:View Model]]
    [[Category:View Model]]
    [[Category:OCL ViewModel Operators]]
    [[Category:OCL ViewModel Operators]]
    {{Edited|July|12|2025}}
    {{Edited|July|12|2025}}

    Revision as of 05:17, 5 February 2025

    This page was created by Wikiadmin on 2018-10-30. Last edited by Charles@mdriven.net on 2025-03-12.

    NOTE: ExcutePS is replaced with selfVM.PSEval - use that instead for new stuff

    This is a practical reference example of how to use the ExceutePS function from a ViewModel. There are many possible uses, but this one is fairly descriptive.

    Need: Look up all the objects with the same value as one particular object. Maybe the user wants to know if something is unique or not…

    The Model:
    Execute -1.png
    The ViewModel:
    Execute -2.png

    Set the vValueToMatch to the Attribute1 of the ViewModel root Thing. Then, call the ExecutePS, stating that it will get a result collection with the objects of type Thing if it runs the expression found in OutOfLoopToAvoidStdFetch.col1. Collect this result and add the objects to a list you added as a variable – vMyList.

    The list can act as a root for Grid in the UI.

    If you have a million Thing objects in the database, this ViewModel will only load the ones with the same attribute1 as the Thing object you started with.

    See: OCLOperators_ExecutePS

    Retrieved from "https://learn.mdriven.net/index.php?title=Documentation:How_to_use_the_ExecutePS_function_in_selfVM&oldid=26315"

    © MDRIVEN . All Rights Reserved

    API Docs
    MDriven World | Portal | Blog | YouTube | StackOverflow | Facebook

    © MDRIVEN . All Rights Reserved