Find child gridview control using button click

private void button1_Click(object sender, EventArgs e)
       {
           object childgrid;

           childgrid =  getControlByType(this, typeof(DataGridView).ToString());
           childgrid =  getControlByName(this, dataGridView1.Name);
       }

       private object getControlByType(Control Main, string controlType)
       {
           if (Main.HasChildren)
           {
               foreach (var control in Main.Controls)
               {
                   if (control.GetType().ToString() == controlType) return control;
               }
           }

           return null;
       }

       private object getControlByName(Control Main, string controlName)
       {
           if (Main.HasChildren)
           {
               foreach (var control in Main.Controls)
               {
                   var ctl = (Control) control;
                   object ctl2 = null;

                   if (ctl.GetType().ToString() == typeof (DataGridView).ToString())
                   {
                       ctl2 = ctl;
                       if (ctl.Name == controlName)
                       {return ctl2;}
                       ctl2 = null;
                   }

                   if (ctl.GetType().ToString() == typeof(Button).ToString())
                   {
                       ctl2 = ctl;
                       if (ctl.Name == controlName)
                       { return ctl2; }
                       ctl2 = null;
                   }

                   if (ctl.HasChildren)
                   {
                     ctl2 =  getControlByName(ctl, controlName);
                   }

                   if (ctl2 != null)
                       return ctl2;

               }
           }

           return null;
       }