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copied!<p><code>params</code> is just syntactic sugar, why not just do something like this:</p> <pre><code>var myWebService = new MyWebService(); myWebService.MyMethod(new string[] { "one", "two", "three" }); </code></pre> <p>The method signature on the web service side would just be:</p> <pre><code>public void MyMethod(string[] values); </code></pre> <p>If you post your web method maybe I can provide a better answer.</p> <p><strong>EDIT</strong><br /> If you can't modify the web method signature, then I would use an <a href="http://msdn.microsoft.com/en-us/library/bb383977.aspx" rel="nofollow">extension method</a> to wrap the difficult to call web service. For example, if our web service proxy class looks like:</p> <pre><code>public class MyWebService { public bool MyMethod(string a1, string a2, string a3, string a4, string a5, string a6, string a7, string a8, string a9, string a10) { //Do something return false; } } </code></pre> <p>Then you could create an extension method that accepts the string array as <code>params</code> and makes the call to <code>MyWebService</code>.</p> <pre><code>public static class MyExtensionMethods { public static bool MyMethod(this MyWebService svc, params string[] a) { //The code below assumes you can pass in null if the parameter //is not specified. If you have to pass in string.Empty or something //similar then initialize all elements in the p array before doing //the CopyTo if(a.Length > 10) throw new ArgumentException("Cannot pass more than 10 parameters."); var p = new string[10]; a.CopyTo(p, 0); return svc.MyMethod(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], p[9]); } } </code></pre> <p>You could then call your web service using the extension method you created (just be sure to add a <code>using</code> statment for the namespace where you declared you extension method):</p> <pre><code>var svc = new MyWebService(); svc.MyMethod("this", "is", "a", "test"); </code></pre>

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