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POUsing Generics to Create HtmlHelper Extension Methods
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  1. POUsing Generics to Create HtmlHelper Extension Methods
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    copied!<p>I'm not really familiar with creating generic methods, so I thought I'd put this question to the community &amp; see what comes back. It might not even be a valid use of generics!</p> <p>I'd like to create a HtmlHelper extension method where I can specify that the method is of a certain type. I pass into the method an instance of that type, and an instance of a TagBuilder object. I then specify the class attribute of the tag to be the type of object I passed in, with all the object's properties serialized into the tag's attributes.</p> <p><strong>edit...</strong> the benefit of this would be that I could then easily serialize my Html elements in into javascript objects for jQuerying to the server &amp; Model Binding, as well as the ability to specify style for a type <strong>...end edit</strong></p> <p>This code sample might clarify.</p> <p>I have a type like this:</p> <pre><code>public class MyType { public int Prop1 { get; set; } public int Prop2 { get; set; } public MyType(int val1, int val2) { this.Prop1 = val1; this.Prop2 = val2; } } </code></pre> <p>What I'm thinking is to produce a helper method, maybe with a signature similar to this:</p> <pre><code>public static string GetTag&lt;T&gt;(this HtmlHelper h, object myType, TagBuilder tag) { // cast myType to T //(i.e. MyType) // use reflection to get the properties in MyType // get values corresponding to the properties // build up tag's attribute/value pairs with properties. } </code></pre> <p>Ideally I could then call:</p> <pre><code>&lt;% var myType = new MyType(123, 234); %&gt; &lt;% var tag = new TagBuilder("div"); %&gt; &lt;%= Html.GetTag&lt;MyType&gt;(myType, tag) %&gt; </code></pre> <p>and the html produced would be</p> <pre><code>&lt;div class="MyType" prop1="123" prop2="234" /&gt; </code></pre> <p>And later on, I can call</p> <pre><code>&lt;%= Html.GetTag&lt;MyOtherType&gt;(myOtherType, tag) %&gt; </code></pre> <p>to get</p> <pre><code>&lt;div class="MyOtherType" prop1="123" prop2="234" /&gt; </code></pre> <p>Is it even possible? Or am I looking at this totally the wrong way? Anyone care to fill me on on a better approach? </p> <p>Thanks</p> <p>Dave</p>
 

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