SharePoint WebPart | Unexpected Error

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So you want to create a new web part with custom editable controls in "Modify Shared Web Part" area

ERROR:
An unexpected error has occurred.

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Troubleshoot issues with Windows SharePoint Services.



SOLUTION:
- Add constructor to editor file, with ID
- Make sure your CreationEditorParts() method is returning something
- Make sure you add IWebEditable to header and implement the functions


public class MyWebPart: System.Web.UI.WebControls.WebParts.WebPart, IWebEditable


/* editor part */

public MyEditorPart()
{
this.ID = "MyEditorPart";
this.Title = "My Editor Title";
}


/* main webpart */

#region IWebEditable Members
EditorPartCollection IWebEditable.CreateEditorParts()
{
try
{
List editors = new List();

MyEditorPart slideShowEditor = new MyEditorPart();
editors.Add(slideShowEditor);
return new EditorPartCollection(editors);
}
catch
{
return new EditorPartCollection();
}
}

object IWebEditable.WebBrowsableObject
{
get { return this; }
}
#endregion


SOURCE:
http://www.tonstegeman.com/Blog/Lists/Posts/Attachments/36/editorpart1_cced0bad340a4d51a650502eab149c6e.png

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