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This post is machine-translated. The original post in german language can be found here.

Consider the following scenario: In the dialog of a SysOperation construct, a field must be manipulated depending on other fields, for example, the AllowEdit property should be changed.

Dialog

In the following you will find the code for a DataContract and the corresponding UIBuilder, in which the corresponding program logic is to be installed.

Here, depending on the selection in the Module field, you can either activate the Customer account field or the Vendor account field.

DataContract

[DataContractAttribute, SysOperationContractProcessingAttribute(classStr(TutorialSysOperationUIBuilder))]
public class TutorialSysOperationDataContract
{
    ModuleCustVend moduleCustVend;
    CustAccount custAccount;
    VendAccount vendAccount;
}

 

[DataMemberAttribute, SysOperationControlVisibilityAttribute(true), SysOperationDisplayOrderAttribute('1')]
public ModuleCustVend parmModuleCustVend(ModuleCustVend _moduleCustVend = moduleCustVend)
{
    moduleCustVend = _moduleCustVend;

    return moduleCustVend;
}

 

[DataMemberAttribute, SysOperationControlVisibilityAttribute(true), SysOperationDisplayOrderAttribute('2')]
public CustAccount parmCustAccount(CustAccount _custAccount = custAccount)
{
    custAccount = _custAccount;

    return custAccount;
}

 

[DataMemberAttribute, SysOperationControlVisibilityAttribute(true), SysOperationDisplayOrderAttribute('3')]
public VendAccount parmVendAccount(VendAccount _vendAccount = vendAccount)
{
    vendAccount = _vendAccount;

    return vendAccount;
}

 

UIBuilder

public class TutorialSysOperationUIBuilder extends SysOperationAutomaticUIBuilder
{
    DialogField df_ModuleCustVend;
    DialogField df_CustAccount;
    DialogField df_VendAccount;
}

The methods generated by the framework are made accessible in the method build().

This is the first time the modifyDialogFields() method is called, so that the property of the desired field is changed immediately, when the dialog is opened.

public void build()
{
    super();

    df_ModuleCustVend = this.bindInfo().getDialogField(this.dataContractObject(), methodStr(TutorialSysOperationDataContract, parmModuleCustVend));
    df_CustAccount = this.bindInfo().getDialogField(this.dataContractObject(), methodStr(TutorialSysOperationDataContract, parmCustAccount));
    df_VendAccount = this.bindInfo().getDialogField(this.dataContractObject(), methodStr(TutorialSysOperationDataContract, parmVendAccount));

    this.modifyDialogFields();
}

In the postRun() method, the modify() method of the module field is overridden.

public void postRun()
{
    super();

    // Override modified method
    df_ModuleCustVend.registerOverrideMethod(methodStr(FormComboBoxControl, modified),
                                             methodStr(TutorialSysOperationUIBuilder, moduleCustVend_modified),
                                             this);
}

In this overridden method, we call the modifyDialogFields() method. Here, it is important that the method obtain the correct parameter profile and return the expected AX data type.

private boolean moduleCustVend_modified(FormComboBoxControl _control)
{
    this.modifyDialogFields();

    return _control.modified();
}

The "magic" goes through the modifyDialogFields() method. The fields are enabled or disabled, depending on the value selected in the module field.

private void modifyDialogFields()
{
    df_CustAccount.allowEdit(df_ModuleCustVend.value() == ModuleCustVend::Cust);
    df_VendAccount.allowEdit(df_ModuleCustVend.value() == ModuleCustVend::Vend);
}

Of course, many other properties of dialog boxes can be changed dynamically in the same way.

These post applies to following versions:
Dynamics AX 2012

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