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POunable to access EventArgs e value to use in HandleRequest
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  1. POunable to access EventArgs e value to use in HandleRequest
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    copied!<p>I am just learning about events, delegates and subscribers. I've spent the last 2 days researching and wrapping my brain around it all. I am unable to access the information being passed in my EventArgs e value. I have a saved project that wants to be opened. The state of the necessary forms are deserialized into a dictionary. A loop is hit that raises the UnpackRequest passing the key/value with it.</p> <p>ProjectManager.cs file:</p> <pre><code>public delegate void EventHandler&lt;TArgs&gt;(object sender, TArgs args) where TArgs : EventArgs; public event EventHandler&lt;UnpackEventArgs&gt; UnpackRequest; </code></pre> <p>Then farther down:</p> <p>ProjectManager.cs file:</p> <pre><code>//Raise a UnpackEvent //took out virtual protected void RaiseUnpackRequest(string key, object value) { if (UnpackRequest != null) //something has been added to the list? { UnpackEventArgs e = new UnpackEventArgs(key, value); UnpackRequest(this, e); } } </code></pre> <p>Then within the open method, after dictionary gets populated with states of each form:</p> <p>ProjectManager.cs file:</p> <pre><code>foreach (var pair in dictPackState) { string _key = pair.Key; dictUnpackedState[_key] = dictPackState[_key]; RaiseUnpackRequest(pair.Key, pair.Value); //raises the event. } </code></pre> <p>I have a class for the Event:</p> <pre><code>public class UnpackEventArgs : EventArgs { private string strKey; private object objValue; public UnpackEventArgs(string key, object value) { this.strKey = key; this.objValue = value; } //Public property to read the key/value ..and get them out public string Key { get { return strKey; } } public object Value { get { return objValue; } } } </code></pre> <p>I am still working on the code to add subscribers and how the project components get re-constituted in the individual forms. But the part I'm trying to work on now is in the MainForm.cs where I handle the Unpacked Request using the arguements getting passed. My e contains the key values and the key represents where to send the value (which is the form object).</p> <pre><code>private void HandleUnpackRequest(object sender, EventArgs e) { //reflection happens here. turn key into object //why can't i get e.key ??? object holder = e; //holder = VBTools.UnpackEventArgs key... value...all info //object goToUnpack = (e.key).GetType(); //goToUnpack.unpackState(e.value); } </code></pre> <p>I think I included all the necessary parts to get any help?! THANKS!</p>
 

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