C＃反射-设置属性值

Question

I'm trying to set a property of an object in a class, but the error says Object does not match target type .

FieldInfo dControl = window.GetType().GetField("dControl", BindingFlags.NonPublic | BindingFlags.Instance);
if (dControl == null) { Debug.Log ("dControl is null"); return;}

Type typeDC = dControl.FieldType;
PropertyInfo inPreviewMode = typeDC.GetProperty("InPreviewMode", BindingFlags.Public | BindingFlags.Instance);
if (inPreviewMode == null) { Debug.Log ("dControl.InPreviewMode is null"); return;}

bool value = false;
inPreviewMode.SetValue(dControl, value, null);

This is the property I'm trying to access:

public class DControl : TimeArea
{
    public bool InPreviewMode
    {
        get
        {
            return dState.IsInPreviewMode;
        }
        set
        {
            if (cutscene != null)
            {
                ...
            }
        }
        dState.IsInPreviewMode = value;
    }
    ...
}

Help is appreciated.

Answer 1

The first parameter of SetValue is the instance for which to set the value on. ie, it is expecting an instance of DControl - your code passes it an instance of FieldInfo .

So you might have to get that instance via reflection:

DControl ctrl = (DControl)dControl.GetValue(window);

And then pass that to the set value

inPreviewMode.SetValue(ctrl, value, null);