在直接引用其他dll的其他dll中调用方法会在原始调用中导致引用错误

Question

Call in my application

Essentials.Class.LoadProgressIndicater(parent)

Direct method fails

LoadProgressIndicater(object parent)
{
    var temp = parent as XtraForm; //XtraForm third party control/dll
}

Indirect method works

LoadProgressIndicater(object parent)
{
    _LoadProgressIndicater(parent);
}

_LoadProgressIndicater(object parent)
{
    var temp = parent as XtraForm; //XtraForm third party control/dll
}

Why does this happen and is there a cleaner approach?

Error

The type is defined in an assembly that is not referenced. You must add a reference to assembly

Answer 1

Resolved

A constructor with the same number of arguments must be evaluated through implicit conversion as to which function member(constructor) would be better.

Hence why I needed to add the reference to the second project so the compiler could determine which constructor was better.

If the constructors don't have the same number of arguments, evaluation doesn't need to occur, and the compiler doesn't need the reference to the second project.

Solution

Made just one method to handle all instances

public static void LoadProgressIndicator(object parent_control)
{
 if (parent_control is XtraForm)
    LoadProgressIndicator(parent_control as XtraForm, null, null, null);
 else
 {
    if (parent_control is XtraUserControl)
       LoadProgressIndicator(null, parent_control as XtraUserControl, null, null);
    else
    {
       if (parent_control is System.Windows.Forms.Form)
          LoadProgressIndicator(null, null, parent_control as System.Windows.Forms.Form, null);
       else
          LoadProgressIndicator(null, null, null, parent_control as System.Windows.Forms.UserControl);
    }
 }
}