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DefaultValue ComboBox in Dynamics AX with X++

Contents

Beside modify metadata on form properties, as best practice we can use code like below to assign default value for combobox.

  • You can use this code in the form’s init method after super():

{% highlight csharp %} ComboBoxName.selection(ComboBoxName::DefaultValue); {% endhighlight %}

  • If this is a table field we should you best practice overriding the initValue method in the table:

{% highlight csharp %} this.ComboBoxName = ComboBoxName::DefaultValue; {% endhighlight %}

  • Override initValue in the form’s datasource only if it should be a specific behaviour in this form only.

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