Layers , Models and Compare with baseline in Visual Studio

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Posted on by Krishnendu

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Hi everyone,

I have a doubt, whether in AX7 what is the importance of layers do they have any significance or models are having any precedence the way they are being created. I tried overlayering an object in a model(cus layer) in app suite package.Then I use compare with baseline( it is comparing with sys. I created a new model(isv layer) customized the same object and when comparing with baseline I can see both (sys+cus layer )as baseline and isv code being compared against them. Now when I created a new model (using sln layer) and try overlayering the same object and try to compare with the baseline the baseline is again sys layer not the models( with cus and isv). Is there any setting where we can set a specific layer in visual studio to as the baseline.

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Mea_ 60,284 on at

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Hi Krishnendu,

Models and layers exist only in design time now, evething is get compiled into one dll anyway. Please read this blog series, it has very detailed explanation of chnaes in AX 7 and new concepts daxmusings.codecrib.com/.../design-compile-run-part1-2012-paradigms.html

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Krishnendu 230 on at

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Thanks evgen , I went through, but how the layers are helping the developers I am still a bit confused, and do models have any precedence yesterday i got an error message saying cannot edit the object due as the model is having some precedence something like that and the compare with baseline is there any feature where we can set the baseline layer in visual studio.

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Andreas Hofmann on at

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This course explains it well: mbspartner.microsoft.com/.../1567.

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Joris dG 17,775 on at

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First, there is a mistake in your results. If you compare ISV code it will not compare to the higher layer as a baseline. Only lower models/layers are considered baseline. You can't change the baseline for compare, it's always all models below your current one.

You should consider models to be sort of like sub-layers. So for ordering purposes (during compile), it sorts by layer first, then it sorts by model ID within the layer. You can flip the model ordering within one layer by changing the IDs in the descriptor XML files. Note that with AX7 so far our experience has been that there's very little benefit (if any) to having multiple models in the same layer.

And in general, you should create your own package and create extensions. Avoid over-layering at all cost!

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Krishnendu 230 on at

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Hi Joris,

I got it that we dont have any option to select the baseline.

I got that only models created first will go as the baseline.(but)

to cross check my results I tried creating a new model wih cus layer and customized an object compare with baseline is ( application suite as the baseline)

now after that i created a new model with SLN layer and while trying to customize the object I dint see the changes which I made in Cus layer

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Joris dG 17,775 on at

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Correct, because the baseline of SLN is SYS, not CUS. So you don't see the CUS layer changes because SLN is lower.

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Krishnendu 230 on at

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Hi Joris,

If that is the case it is contradicting again if I create a cus Layer model and customize an object and compare it is comparing with with sys which is fine ...and then again create a new ISV model and customize the same object and compare with baseline I am able to see the CUS layer changes though the layer is higher. The later scenario happens if I select any layer between (CUS to ISV).

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