Question

In my Ext Js3 application I created a form with a checkbox with the following code:

    }, {
        xtype: 'checkbox',
        fieldLabel: 'Is Automation Failure',
        inputValue: 'true',
        name: 'isAutomationFailure'
    }, {

When I check the checkbox it correctly sends isAutomationFailure: true to my Asp.NET MVC action, and life is good. However, if I leave the checkbox unchecked, it gives:

The parameters dictionary contains a null entry for parameter ‘isAutomationFailure’ of non-nullable type ‘System.Boolean’ for method

I understand that checkboxes do not send anything over if a checkbox isn’t checked, but I was under the impression that a non-specified bool would default to false if not specified. My action has the following signature:

    public virtual JsonResult SetTestRunFailureInfo(int runId, bool isAutomationFailure, int? tfsWorkitemId)

How can I get this to work (without having to resort to turning the parameter into a nullable type)?

Answer 1

Change your bool to bool? and treat null as false. That’s a “feature” of Ext JS.

isAutomationFailure = isAutomationFailure ?? false;