当在Dynamic 365 Online中触发OnStageChange事件时，如何确定用户是转到业务流程的下一阶段还是上一步？

Question

I'm writing a JS script to intercept and do some additional validations when user moved to the next stage of business process flow in Dynamic 365 Online.

I'm binding my function to OnStageChange event of Dynamic 365, but that event is not only fired when a user moved to next stage but also when he moved back to previous stage as well.

Is the any way to tell if the user is moving to the next or the previous stage?

Answer 1

You'll need to update your code for the OnStageChange to getEventArgs , this will allow you to see if the getDirection was 'next' or 'previous.'

Without seeing your code, I can't provide specific implementation advice, but this answers your question.

Below is the link for further understanding how to handle `OnStageChange' events:

https://msdn.microsoft.com/en-us/library/gg334481.aspx#BKMK_OnStageChange

Answer 2

Thanks to @OneNeptune, I managed to solved my problem as follow.

const NEXT_STAGE_OPTION = "Next"

function onAccountFormLoad (context) {
    context.getFormContext().data.process.addOnStageChange(checkMoveStage);
}

function checkMoveStage(context) {
    var targetStageName = context.getFormContext().data.process.getActiveStage().getName();
    var direction = context.getEventArgs().getDirection();
    console.log("Move to " + direction + " stage:" + targetStageName);

    if (direction === NEXT_STAGE_OPTION) {
        // Perform necessary validation when moving to next stage.
    }
}

Function onFormLoad is added to onLoad event of form, with "Pass execution context as first parameter" option checked.