How to clear the combobox value if I move to next values in the grid

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Posted on by Faqruddin

1,883

Hello,

I have a grid in the left side of the form which display data of some IDs. I have also combobox in DetailsHeader(Group) and its display weekdays. Here I need to clear the combobox and edit the combobox as manually once the value of Ids controller changed in the grid. For next Id2, Id3 values in the grid I need to clear the combobox and edit the combobox as manually. Please advice how can I achieve this. I'm using simple list and details grid form.

Thanks

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Martin Dráb 237,880 Most Valuable Professional on at

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Which version of AX are you using? I'm assuming it's either AX 2012, or you actually mean D365FO and asking in the AX forum by mistake?

Is the combo box bound to a data source field? If so, is it the same data source as in the grid? If so, you're getting the value that you have stored in database. Are you saying that you want to ignore the current data and always set a fixed value?

What do you mean by "edit as manually"?

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Faqruddin 1,883 on at

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The version D365 Fo. The combo box is not bound to the datasource field. I added the controler called weekdays and set the enumtype weekdays. In the form actual datasource it already holds the field called day and it has data from external sources. I wrote excutequey() and selectionchanged() method to filter. But here as I said above once I move id2, id3 I need combobox to be empty and allow to be editable and clear previous selections.

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Waed Ayyad 9,039 Super User 2025 Season 2 on at

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Hi Faqru,

Do you want to filter date of the grid based on the enum?

Do you clear its value every time you open the Form?

If yes, try to clear it on the init of the form.

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Waed Ayyad 9,039 Super User 2025 Season 2 on at

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Hi Faqru,

Do you want to filter date of the grid based on the enum?

Do you want clear its value every time you open the Form?

If yes, try to clear it on the init method of the form.

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Faqruddin 1,883 on at

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Hello Waed,

First thing the date is not placed on the grid. The date day enum is on DetailsHeader(Group) and its display weekdays The grid contain list of data of RouteIDs. So whenever each time I select new RouteID from the gird left I need clear date enum. I follow below approach not worked. Please check my code. As you see below down when I shift to Rout-B and I need weeekdaysCombo to be empty. Currently the combo takes previous selection of Rout-A. The weekdays combo help to filters Customer available & not available data after weekday selection.

[FormDataFieldEventHandler(formDataFieldStr(DAWCustSeq, DAWRoutes, RouteID), FormDataFieldEventType::Modified)]
    public static void RouteID_OnModified(FormDataObject sender, FormDataFieldEventArgs e)
    {
        FormRun formRun = sender.datasource().formRun();
        DAWRoutes DAWRoutes = formRun.dataSource(formdatasourcestr(DAWCustSeq, DAWRoutes)).cursor();
        formRun = sender.datasource().formRun();

        FormComboBoxControl WeekDays = formRun.design(0).controlName("WeekDays");

        if(DAWRoutes.RouteID !=null)
               {

               WeekDays.clear();
               }
    }

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Waed Ayyad 9,039 Super User 2025 Season 2 on at

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Hi Faqru,

Try to move your code to the active Event handler of form data source not to the modified as you want to clear the value once you move from record to another. Try it and tell me the result, also I think you should add your code to the init method of the form if you want it to be empty when you open the form.

I noticed you declare formRun = sender.datasource().formRun(); twice remove the second one. Also are you sure weekday.clear is working? Try to set the value to the default value of the enum. Does the enum has empty value ?

Thanks

Waed

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Faqruddin 1,883 on at

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Thanks Waed. I moved my code to active() of datasource. Now its completely cleared no values found in the combo box at all to select :). I need combo box value also once I move from record to another.

    [DataSource]
    class DAWRoutes
    {
        /// <summary>
        ///
        /// </summary>
        /// <returns></returns>
        public int active()
        {
            int ret;

            ret = super();

            if(DAWRoutes_RouteID.valueStr() !=null)
            {
                WeekDays.clear();
            }

            return ret;
        }
    }

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Martin Dráb 237,880 Most Valuable Professional on at

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The combobox is based on an enum, right? Then resettting it means setting the default value into it. For example: WeekDays.selection(YourEnum::None).

By the way, the condition DAWRoutes_RouteID.valueStr() !=null doesn't make a good sense because string in X++ can't ever be null. Also, you should refer to the data source field rather than the control. Therefore you can use simply if (dawRoutes.RouteID).

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Faqruddin 1,883 on at

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Thank you martin. It works. Now the combo box is empty once I select next RoutId in the grid. But I have small thing left. I have SysListPanelRelationTableCallback and records still exists of previous selection of RoutID and WeekDay. I want to be empty SysListPanelRelationTableCallback records once I select next RoutId in the grid. Please advice.

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Martin Dráb 237,880 Most Valuable Professional on at

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Please create a new thread for the other problem and explain it in detail there. It doesn't belong under the title "How to clear the combobox value if I move to next values in the grid".

If the problem with combobox is resolved (which seems to be the case), please verify the answer.

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