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Enabling Wizard Buttons Depending on User Input

  • Artículo

Applies To: Microsoft Dynamics AX 2012 R3, Microsoft Dynamics AX 2012 R2, Microsoft Dynamics AX 2012 Feature Pack, Microsoft Dynamics AX 2012

You can disable the Next button for a particular step in a wizard until the user has entered the required information.

Disable the Next Button

  • Set the initial state of the button by using the setupNavigation method.

  • Test for user input, and then use the nextEnabled method to enable the button if the user input has been validated.

For example, the Next button for the Naming tab page in the Wizard Wizard is disabled until there is something in the Specify the Name of your Wizard box.

Setting the Initial State of the Next Button

The setupNavigation method allows you to set the initial states of the Back and Next buttons on your wizard. This method is available if you have based your wizard on the SysWizard class, for example, by using the Wizard Wizard.

For example, the setupNavigation method for the Wizard Wizard is shown in the following example.

    void setupNavigation()
    {
    // First, complete the name.
        nextEnabled[formRun.namesTabIdx()]          =   false; 
    // Default data tabbed page.
        skipTab[formRun.defaultDataSetupTabIdx()]   = true;  
    }

Testing the user input

You can test to discover whether the user has entered the required information, and whether the enabling of the Next button is performed on the relevant form control method.

For example, the code that enables the Next button on the Naming tab page in the Wizard Wizard is located in the textChange method on the StringEdit:WizardName control of the SysWizardWizard form.

    if (this.text())
    {
        if   (!sysWizard.isNextEnabled())
        {
            sysWizard.nextEnabled(true,   sysWizard.curTab(), false);
        }
    }
    else
    {
        if   (sysWizard.isNextEnabled())
            sysWizard.nextEnabled(false,   sysWizard.curTab(), false);
    }

The first line of the code tests whether text has been entered in the Specify the Name of your Wizard box. If it has, the Next button is enabled.

The second and third parameters in nextEnabled are optional. The second parameter specifies the tab page where the Next button should be enabled. The default is the current tab page. The third parameter indicates whether focus should be moved to the Next button; the default is true.

See also

How to: Create Wizards

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