How to display method in form ?

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Hi All,

1. Created a table ABC_DS with field XYZ_fld which will be lookup field of another table and a display method xyz() which is description of XYZ_fld.

2. Created a form where I have added field XYZ_fld and method xyz() in grid.

3. Now want to display value in method xyz() when user selects/modify value in XYZ_fld. But Description is not displaying.

Please Kindly suggest me where I'm lacking to achieve this.

Regards,

Aimon Fatima

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Pete Alberts 3,542 on at

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There isn't much more to it than that... Your implementation seems correct. If i were you I'd just go through everything again step by step to see if you missed some sort of property. And then build your project again and maybe "restore" the form.

A wild guess: Did you remember the "display" keyword on your display method?

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nmaenpaa 101,160 Moderator on at

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Could you please share the code of your display method?

Does the display method / field work on records that already exist on the grid?

Also, does it start displaying the value on new record after the user saves the record?

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Pete Alberts 3,542 on at

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On second thought. I am worried you did something strange. Here are some steps:

On your table, add your method like the example below.

On your form, create a String control where you need it.

Specify the Datasource and Data method properties. Screenshot supplied below.

That is it. Nothing more to it.

class XYZMyTable extends Common { [SysClientCacheDataMethod] //BP check display Description myDisplayMethod() { Description myDisplayMethod; myDisplayMethod = *some logic, probably including a find method*; return myDisplayMethod; } }

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Community Member on at

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Ya. I have done all these steps.

I got the problem, that datasource of not refreshing at the moment so I have refresh by datasource at modified method of field.

Thanks for the response..

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Community Member on at

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Thanks for the response Nikolaos..

Ya. In display method I have passed my table buffer, so that it will get the current record and display the description against that record and refresh my datasource after executing of this code.

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nmaenpaa 101,160 Moderator on at

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Did you notice my question about sharing your code?

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Community Member on at

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ohh..I missed it. Sharing my code below which I have created in my XYZ_table table

[SysClientCacheDataMethodAttribute(true)]

public display Description displayDescription(XYZ_table _XYZ_table )

{

ABC_table abc_Table;

select firstonly Description from abc_Table

where abc_Table.XYZ_field == _XYZ_table .XYZ_Field;

return abc_Table.Description;

}

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nmaenpaa 101,160 Moderator on at

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Remove the caching attribute and it will work. If caching is used, display methods are refreshed only when data is updated and this happens only when the user saves the record that they are working on.

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Pete Alberts 3,542 on at

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I think you should revisit your OOP. If I need your email address - I don't need to ask you "What is Almon's email address?", but rather "What is your email address?". The same with XYZ_Table. You already have an instance of the object. It is not necessary (and wrong) to specify the XYZ_Table instance from which you want the description.

Maybe you confused display methods on form datasources with this. In that case it makes sense that you need a parameter. In this case it does not.

So the correct code will be like this:

[SysClientCacheDataMethod(true)] display Description displayDescription() { Description displayDescription; //side note - this should be a find method ABC_Table lookupTable; select firstonly Description from lookupTable where lookupTable.XYZ_Field == this.XYZ_Field; displayDescription = lookupTable.Description; return displayDescription; }

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Community Member on at

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Thank you...

Ya its working now .

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