WinForm开发中几种找控件的方法

#region 在当前控件集中查找ToolStripButton
        private static ToolStripButton FindToolStripButton(Form owner, string controlId)
        {
            ToolStripButton result;
            result = null;
            foreach (Control ctl in owner.Controls)
            {
                if (ctl.GetType() == typeof(System.Windows.Forms.ToolStrip))
                {
                    ToolStrip ts = ctl as ToolStrip;
                    ToolStripItem[] items = ts.Items.Find(controlId, true);
                    if (items.Length > 0)
                    {
                        result = (ToolStripButton)items[0];
                        return result;
                    }
                }
            }
            return result;
        }
        #endregion

//Form中直接找

Control[] ctls = owner.Controls.Find(dr["ControlName"].ToString(), true);

//Form的Components中找控件

 ArrayList myList = owner.GetIntfObjects(typeof(IFindContainer));
for (int i = 0; i < myList.Count; i++)
{

　　if(myList[i] is DataSet)

　　{}

}

public ArrayList GetIntfObjects(Type intfType)
        {
            ArrayList aRet = new ArrayList();

            ReflectionPermission reflectionPerm1 = new ReflectionPermission(PermissionState.None);
            reflectionPerm1.Flags = ReflectionPermissionFlag.AllFlags;

            if (intfType.IsInterface)
            {
                Type type = this.GetType();
                FieldInfo[] myFields = type.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.DeclaredOnly);
                for (int i = 0; i < myFields.Length; i++)
                {
                    object newobj = myFields[i].GetValue(this);
                    if ((null != newobj) && (null != newobj.GetType().GetInterface(intfType.Name)))
                    {
                        aRet.Add(newobj);
                    }
                }
            }
            return aRet;
        }