Getting lookup value on load

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I have a form that requires two lookups. The first one is loaded with a value from the previous form that it is being added from. I want to get the id of that lookup in the onLoad event, but it is not loaded yet. This code works in an onChange event, so I know the code is sound.

var thisRMA = Xrm.Page.getControl("lena_fr_rma");

var curRMAKey = thisRMA.getAttribute().getValue()[0].name;

I get the curRMAKey.

BUT - the onLoad seems to run before the value is actually loaded into the lookup. Is there a way to wait until the values are loaded on to the form? Both values are Business Required, so I can't run this in the onSave event.

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Mahadeo Matre 17,021 on at

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Hi..

You can add wait by using setTimeout javascript function.

setTimeout(Getlookup, 2000);

parameters for this function are, GetLookup: your function name, 2000- time in mil. sec.

your code will be similar to below.. code will wait until lena_fr_rma is not loaded.

function Getlookup()

{

var thisRMA = Xrm.Page.getControl("lena_fr_rma");

if(thisRMA == null)

{

setTimeout(Getlookup, 2000);

return;

}

var curRMAKey = thisRMA.getAttribute().getValue();

}

Hope this will help..

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Bruno Lucas 5,421 on at

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Have you tried to separate in two methods and load one first? maybe you can do that along with a call-back. something like this: nycrmdev.blogspot.co.nz/.../an-alternative-approach-to-loading-form.html

last resource you can use javascript wait but it is not the very best approach because it will cause a delay.

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Community Member on at

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Yeah, I thought about that, but the control is not returning null. I think it's because it's a lookup. Here is the code:

var thisRMA = Xrm.Page.getControl("lena_fr_rma");

if (document.getElementById('lena_fr_rma') != null) {

if ((typeof (thisRMA) != "undefined" && thisRMA != null)) {

var rmaid = thisRMA.getAttribute().getValue()[0].id;

var dlpid = getDLPSN(rmaid);

}

} else {

setTimeout("FindControl()", 1000);

}

As I step through the code, it passes through the if statements, meaning the control is NOT null or undefined, but when it gets to the following statement it gives an error.

var rmaid = thisRMA.getAttribute().getValue()[0].id;

Here is the error: "Unable to get property '0' of undefined or null reference"

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Mahadeo Matre 17,021 on at

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try this way..

function getLookup() { var thisRMA = Xrm.Page.getControl("lena_fr_rma"); if (thisRMA == null) { setTimeout(getLookup, 1000); } else if (thisRMA.getAttribute() == null || thisRMA.getAttribute().getValue()) { setTimeout(getLookup, 1000); } else { var rmaid = thisRMA.getAttribute().getValue()[0].id; var dlpid = getDLPSN(rmaid); } }

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Community Member on at

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Mahadeo,

I just had to change one thing:

else if (thisRMA.getAttribute() == null || !thisRMA.getAttribute().getValue())

I added a NOT (!) for the second part.

This now retrieves the value - thx.

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