Skip to main content

Refreshing (executeQuery) a calling form from the called form.

A feature that you often need when you work with code that is called from a form and manipulates data, is to be able to refresh the calling form to reflect the changes made, when the code has been run.

This could also be a form calling an other form, where data changes are made, in the called form, but the changes must be reflected in the calling form, when the called form is closed.

I have seen it done by making call back to a method on the calling form, that does the refresh.

You can however make the refresh from the CALLED form or code, using an args-object.

When a form calls an other form it is typically done via a menu item, and thus automatically an args object is passed to the called form.

The args object can carry a tablebuffer object that is acessed with the record method on the args object.

You can determine if the tablebuffer object is a formDataSource, and if so, you can instantiate a formDataSource-object on which you call the executeQuery-metod.

One example could be:

Form SalesTable
has a menuitembutton that calls Form SalesLine.

Form SalesTable has a display method that sums up data manipulated in Form SalesLine.
When closing form SalesLine we need Form SalesLine to re-execute the query in Form SalesTable and thus refreshing the data form SalesTable is showing.

This can be done by overriding the close method on Form SalesLine and putting the following code into it:

public void close()
{
FormDataSource fds; // Form data source object
SalesTable salesTable; // tablebuffer passed in args object

super();
// Refresh calling form data source
salesTable = element.args().record();
if (salesTable.isFormDataSource())
{
fds = salesTable.dataSource();
if (fds)
{
fds.executeQuery();
}
}
}

The above shown can also be used in a main-method on a class, so that code in the class that manipulates data shown in a form, where the class is called via a menu-button on the form.

I thought of doing it with a common object, and putting the code in a method on the GLOBAL class, to make it useable everywhere from a single line of code, but the Axapta client (3.0) kept crashing when calling common.dataSource() :0(.

Comments

Popular posts from this blog

Suppressing the infolog

Supressing the infolog is often useful in D365FO when augmenting code. When augmenting code using COC (Chain Of Command), you can have new code run either before or after the code you are augmenting. This means that any infolog-messages that the standard application code does, will be shown to the user, even if your augmentation supports a scenario where there must be no infolog-messages. How do you avoid the standard application infolog-messages ? To the rescue comes temporary supression of the infolog. The suppression consists of: 1) Saving the current infologLevel 2) Setting the infologLevel to SysInfologLevel::None 3) Run your code 4) Restoring the saved infologLevel to the infolog For example a table could have a validatewrite-method that validates that you are only allowed to use 3 out of 6 options in an enum-field, and you need to allow for a fourth one. Table a - validateWrite method: boolean validateWrite() {     Switch (this.enumField)     {         boolean ret;         case

Dynamics ax 2012 traversing selected records in a form data source

A classical developer challenge in Dynamics AX is to enable a form button when multiple records have been selected in the form by the user. This usually involves writing some form of loop (for or while or do-while) that starts out with calling _ds.getFirst() and continuing the loop as long as _ds.getNext() returns a tablebuffer. Well things got a little bit easier in AX 2012. In AX 2012 you can use the MultiSelectionHelper class. One example is the following that I encountered in AX 2012: Can you make the customer collection letter print out run for each selected collection record in the Print/Post collection letters form (Accounts receiveable / Periodic / Collections / Print/Post Collection letters). If we ignore the possibility for setting up print destination for running each report we can do this in two steps: 1) Change the "Multiselect" property of the "MenuButton" and the "Menuitembutton" in the MenuButton in the form from "Auto&quo

Subtle but important difference between _ds.executeQuery() and ds.Research()

This is actually an old entry. Been tumbling with a problem for the last few days. A form in our Dynamics AX module for Preventive Maintenance Control was not behaving. The form has "explicit" filter fields that the user can see without having to activate the form filter (CTRL+F3), for setting up filters most commonly used in an easy way. And this is working ok. However at this customer site, the form has been adjusted so that the user can have the form refreshed automatically periodically, and when the users at the customer site were making use of the "explicit" filter combined with the AX's normal filtering (CTRL+F3), the form simply threw away the normal form filtering. I discovered a subtle but very important difference between writing _ds.executeQuery(); (which was the way our code was doing it) and _ds.Research(); The difference is that _ds.Research() will retain the filter ranges in the forms query as they are right now. _ds.executeQuery() will NOT. It