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POUsing Generics to return a literal string or from Dictionary<string, object>
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  1. POUsing Generics to return a literal string or from Dictionary<string, object>
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    copied!<p>I think I outsmarted myself this time. Feel free to edit the title also I could not think of a good one.</p> <p>I am reading from a file and then in that file will be a string because its like an xml file. But in the file will be a literal value or a "command" to get the value from the workContainer</p> <p>so</p> <pre><code>&lt;Email&gt;me@company.com&lt;/Email&gt; </code></pre> <p>or </p> <pre><code>&lt;Email&gt;[? MyEmail ?]&lt;/Email&gt; </code></pre> <p>What I wanted to do instead of writing ifs all over the place to put it in a generic function</p> <p>so logic is </p> <pre><code>If Container command grab from container else grab string and convert to desired type Its up to the user to ensure the file is ok and the type is correct </code></pre> <p>so another example is </p> <p>so</p> <pre><code>&lt;Answer&gt;3&lt;/Answer&gt; </code></pre> <p>or </p> <pre><code>&lt;Answer&gt;[? NumberOfSales ?]&lt;/Answer&gt; </code></pre> <p>This is the procedure I started to work on</p> <pre><code>public class WorkContainer:Dictionary&lt;string, object&gt; { public T GetKeyValue&lt;T&gt;(string Parameter) { if (Parameter.StartsWith("[? ")) { string key = Parameter.Replace("[? ", "").Replace(" ?]", ""); if (this.ContainsKey(key)) { return (T)this[key]; } else { // may throw error for value types return default(T); } } else { // Does not Compile if (typeof(T) is string) { return Parameter } // OR return (T)Parameter } } } </code></pre> <p>The Call would be </p> <pre><code> mail.To = container.GetKeyValue&lt;string&gt;("me@company.com"); </code></pre> <p>or</p> <pre><code> mail.To = container.GetKeyValue&lt;string&gt;("[? MyEmail ?]"); int answer = container.GetKeyValue&lt;int&gt;("3"); </code></pre> <p>or</p> <pre><code> answer = container.GetKeyValue&lt;int&gt;("[? NumberOfSales ?]"); </code></pre> <p>But it does not compile?</p>
 

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