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How to create a dynamic fields in form?

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Posted on by junior AX

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Hi,

I want to create a control in form by code (not actual control) -- how can i do that?

It needs to appear based on conditions.

So let's say if a standard control is filled, then the control created by code needs to appear..and if it's a filled another control that i will create by code needs to appear

There is no limit to how many controls needed that's why i want it dynamic and not actual controls as they need to appear based on conditions

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Anton Venter 20,694 Super User 2026 Season 1 on at

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Have a look at the standard tutorial_Form_AddControl form, here is the code below. It demonstrates the basics of how to do add form controls at runtime. Also with events like validate.

[Form] public class tutorial_Form_AddControl extends FormRun { int i; public void run() { // Create a dummy control to use so all dynamically added controls can register to its override FormBuildDesign formBuildDesign = form.design(); FormBuildGroupControl formBuildGroupControl; FormStringControl c; ; c = addGroup.addControl(FormControlType::String,'runTimeControl'); c.label("Dummy control"); c.registerOverrideMethod(methodStr(FormStringControl, validate), 'runTimeControl_validate'); c.visible(false); formBuildGroupControl = formBuildDesign.control( addGroup.id() ); super(); } public boolean runTimeControl_validate(FormStringControl stringControl) { boolean ret; ; ret = stringControl.validate(); // Same as calling super in the control::validate warning(funcname() ' Control:' stringControl.Label() ' Value:' stringControl.valueStr()); return ret; } [Control("Button")] class Button { void clicked() { FormBuildDesign formBuildDesign = form.design(); FormBuildGroupControl formBuildGroupControl; FormStringControl c; ; i ; // Add the control - increment control name by 1 c = addGroup.addControl(FormControlType::String, 'runTimeControl' int2str(i)); c.width(300); // register the controls validate override c.registerOverrideMethod(methodStr(FormStringControl, validate), 'runTimeControl_validate'); // set the controls label name c.label('New Control - runTimeControl' int2str(i)); formBuildGroupControl = formBuildDesign.control( addGroup.id() ); } } }

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junior AX 1,552 on at

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Hi,

How to do it by extension and how to override it's lookup?

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