Hi Pete,

Maybe you'll try creating a new 'PJKTabPage' object first and then assign it.

This is what I mean:

...
PJKTabPage oTP = new PJKTabPage();
oTP = Activator.CreateInstance(type) as PJKTabPage;
...

HTH


>Hi All, I'm trying to dynamically load some TabPages that are defined in seperate dlls using the code below, the problem I'm having is with the line : "PJKTabPage oTP = Activator.CreateInstance(type) as PJKTabPage;" where PJKTabPage is the name of the class, the class loads ok ( I've stepped through the code with the debugger ) but the variable oTP is always null, can't understand why ?
>
>
>

>private void frmPluginTest_Load(object sender, EventArgs e)
>{
>    string[] dllFilenames = Directory.GetFiles(@"P:\PJKPlugin\TabPagePlugins","TabPage*.dll");
>    foreach (string filename in dllFilenames)
>    {
>        try
>        {
>            Assembly asm = Assembly.LoadFrom(filename);
>            Type[] typesInAssembly = asm.GetTypes();
>            foreach (Type type in typesInAssembly)
>            {
>                 if (null != type.GetInterface(typeof(PJKPlugins.ICMSTabPage).FullName))
>                 {
>                      PJKTabPage oTP = Activator.CreateInstance(type) as PJKTabPage;
>                      this.PluginTabControl.Controls.Add(oTP);
>                 }
>             }
>         }
>         catch
>         {
>              // Not a valid assembly, move on
>         }
>    }
>}
>