C# winform 无API函数实现系统快捷键

protected void ErgodicChildrenControls(Control parent, KeyEventArgs e)      

   {          

        DataTable dt=new DataTable();          

      //dt= bga.GetTable("select * from d_short_keys where login_code='" + bga.LoginID + "'");     

        dt = bga.GetTable("select * from d_code_list where mark=upper('short_key')");     

         if (dt == null || dt.Rows.Count == 0) return;//没有设置快捷键，返回。     

        foreach (Control c in parent.Controls)         

       {

                if (c is DevExpress.XtraEditors.SimpleButton)        

              {

　　　　　　  DevExpress.XtraEditors.SimpleButton btn = (DevExpress.XtraEditors.SimpleButton)c;        

                   for (int i = 0; i < dt.Rows.Count; i++)         

                  {              

           if (e.Alt && e.KeyCode.ToString() == dt.Rows[i]["B_CODE"].ToString() && btn.Text.Trim()==dt.Rows[i]["CODE_NAME"].ToString()      &&            btn.Parent.GetType().ToString() == "DevExpress.XtraBars.Docking.ControlContainer")           

              {         

                               btn.PerformClick();              

              　　　　　　 return;                       

　　　　  }                 

　　            }                                 

          }              

   if (c.Controls.Count > 0)       // 判断该控件是否有下属控件。     

        {              

               ErgodicChildrenControls(c, e);    //递归，访问该控件的下属控件集。             

        }          

   }     

    }