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copied!<p>The <a href="http://msdn.microsoft.com/en-us/library/ya5y69ds.aspx" rel="noreferrer">list of built-in types in C#</a> is quite short and not very likely to change, so I think having a dictionary or a big <code>switch</code> statement to map these shouldn't be difficult to maintain.</p> <p>If you want to support nullable types, I believe you have no other option than to parse the input string:</p> <pre><code>static Type GetTypeFromNullableAlias(string name) { if (name.EndsWith("?")) return typeof(Nullable<>).MakeGenericType( GetTypeFromAlias(name.Substring(0, name.Length - 1))); else return GetTypeFromAlias(name); } static Type GetTypeFromAlias(string name) { switch (name) { case "bool": return typeof(System.Boolean); case "byte": return typeof(System.Byte); case "sbyte": return typeof(System.SByte); case "char": return typeof(System.Char); case "decimal": return typeof(System.Decimal); case "double": return typeof(System.Double); case "float": return typeof(System.Single); case "int": return typeof(System.Int32); case "uint": return typeof(System.UInt32); case "long": return typeof(System.Int64); case "ulong": return typeof(System.UInt64); case "object": return typeof(System.Object); case "short": return typeof(System.Int16); case "ushort": return typeof(System.UInt16); case "string": return typeof(System.String); default: throw new ArgumentException(); } } </code></pre> <p>Test:</p> <pre><code>GetTypeFromNullableAlias("int?").Equals(typeof(int?)); // true </code></pre>

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