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POMVC 2, IModelBinder & ValueProvider changes
 

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    <p>I'm trying to migrate to ASP.Net MVC 2 and meet some issues. Here is one : I needed to bind directly a <strong>Dictionary</strong> as result of a view post.</p> <p>In ASP.Net MVC 1 it worked perfectly using a custom <strong>IModelBinder</strong> :</p> <pre><code>/// &lt;summary&gt; /// Bind Dictionary&lt;int, int&gt; /// /// convention : &lt;elm name="modelName_key" value="value"&gt;&lt;/elm&gt; /// &lt;/summary&gt; public class DictionaryModelBinder : IModelBinder { #region IModelBinder Members /// &lt;summary&gt; /// Mandatory /// &lt;/summary&gt; public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) { IDictionary&lt;int, int&gt; retour = new Dictionary&lt;int, int&gt;(); // get the values var values = bindingContext.ValueProvider; // get the model name string modelname = bindingContext.ModelName + '_'; int skip = modelname.Length; // loop on the keys foreach(string keyStr in values.Keys) { // if an element has been identified if(keyStr.StartsWith(modelname)) { // get that key int key; if(Int32.TryParse(keyStr.Substring(skip), out key)) { int value; if(Int32.TryParse(values[keyStr].AttemptedValue, out value)) retour.Add(key, value); } } } return retour; } #endregion } </code></pre> <p>It worked in pair with some smart HtmlBuilder that displayed dictionary of data.</p> <p>The problem I meet now is that <strong>ValueProvider</strong> is not a Dictionary&lt;> anymore, it's a IValueProvider that only allow to get values whose name is known</p> <pre><code>public interface IValueProvider { bool ContainsPrefix(string prefix); ValueProviderResult GetValue(string key); } </code></pre> <p>This is really not cool as I cannot perform my smart parsing...</p> <p>Question :</p> <ol> <li>Is there another way to get all keys ?</li> <li>Do you know another way to bind a collection of HTML elements to a Dictionary</li> </ol> <p>Thanks for your suggestions</p> <p>O.</p>
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    1. COSee here: http://stackoverflow.com/questions/2290473/ivalueprovider-in-mvc-2-rc-2/2290520#2290520
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