9 Jun’17

Dynamics 365, Enterprise, Dynamics AXOverride Form DataSource method using Extensions in D3fO

In this blog article, we will see how we can override Form Data source method using Extensions in Dynamics 365 Operations. Now as recommended by Microsoft we must avoid Overlayering and instead use Extension. For extension, we have to use pre or post event handlers methods. In this blog we will create event handler of OnActivated() method of SalesLine DataSource of form SalesTable.

Create a new Class:

class CFSActivateButton
{   

}

Copy and paste OnActivated() event handler of SalesTable DataSource in Class:

 

/// <summary>
/// To activate or deactivate Create Service Order button based on CFSProjId field of SalesLine
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>

[FormDataSourceEventHandler(formDataSourceStr(SalesTable, SalesLine), FormDataSourceEventType::Activated)]
public static void SalesLine_OnActivated(FormDataSource sender, FormDataSourceEventArgs e)
{     

        FormDataSource      fds = sender.formRun().dataSource("SalesLine");
        SalesLine           salesline = fds.cursor();
        FormRun             fr = sender.formRun();
        FormControl         fc = fr.design(0).controlName("CreateServiceOrder");       

        if(salesLine.ProjID)
        {
            fc.enabled(true);
        }
        else
        {
            fc.enabled(false);
        }
    }

 

Written by

Sohagani Shah

ERP Developer

3 thoughts on “Override Form DataSource method using Extensions in D3fO”

  1. I tried overriding form data source active method using OnActivated event handler but the event handler runs first then the standard active method code runs after hence can’t override. Is there another way of archiving this?

    1. Hi Percy,

      It seems you are using event handler ‘OnActivated()’ of form and not form DataSource as Form -> FormDatasource -> EventHandler ‘OnActivated()’ is always triggered after standard formdatasource active() method.

      Can you tell us the exact scenario you are trying so we can better help you?

  2. Hi,

    I was able to achieve this by using OnMarkChanged event as OnActivated runs before the standard active method of the data source.

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