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POWindows Forms radiobutton data binding
 

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    <p>I am following the <a href="http://martinfowler.com/eaaDev/PresentationModel.html" rel="nofollow noreferrer">presentation model</a> design pattern suggested by <a href="http://en.wikipedia.org/wiki/Martin_Fowler" rel="nofollow noreferrer">Martin Fowler</a> for my GUI architecture in a Windows Forms project.</p> <p>"<em>The essence of a Presentation Model is of a fully self-contained class that represents all the data and behavior of the UI window, but without any of the controls used to render that UI on the screen. A view then simply projects the state of the presentation model onto the glass...."</em> - Martin Fowler</p> <p>I am finding the concept very fluid and easy to understand except this one issue of data binding RadioButtons to properties on the Data/Domain object.</p> <p>Supposing I have a Windows Form with three radio buttons to depict some "Mode" options as -</p> <ul> <li>Auto</li> <li>Manual</li> <li>Import</li> </ul> <p>How can I use boolean properties on Data/Domain Objects to DataBind to these buttons? I have tried many ways but to no avail. For example I would like to code like -</p> <pre><code>rbtnAutoMode.DataBindings.Add("Text", myBusinessObject, "IsAutoMode"); rbtnManualMode.DataBindings.Add("Text", myBusinessObject, "IsManualMode"); rbtnImportMode.DataBindings.Add("Text", myBusinessObject, "IsImportMode"); </code></pre> <p>There should be a fourth property like "SelectedMode" on the data/domain object which at the end should depict a single value like "SelectedMode = Auto". I am trying to update this property when any of the "IsAutoMode", "IsManualMode" or "IsImportMode" is changed, e.g. through the property setters. I have INotifyPropertyChanged implemented on my data/domain object so, updating any data/domain object property automatically updates my UI controls, that's not an issue.</p> <p>There is a good example of binding two radio buttons in Stack&nbsp;Overflow question <em><a href="https://stackoverflow.com/questions/344964/how-do-i-use-databinding-with-windows-forms-radio-buttons">How do I use databinding with Windows Forms radio buttons?</a></em>, but I am missing the link while implementing the same with three buttons. I am having very erratic behaviors for the radio buttons.</p> <p>I hope I was able to explain it reasonably. I am actually in a hurry and could not put a detailed code on post, but any help in this regard is appreciated.</p> <p>There is a simple solution to this issue by exposing a method like -</p> <pre><code>public void SetMode(Modes mode) { this._selectedMode = mode; } </code></pre> <p>which could be called from the "CheckedChanged" event of the radio buttons from the UI and would perfectly set the "SelectedMode" on the business object, but I need to stretch the limits to verify whether this can be done by DataBinding.</p>
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