在pad上点击输入框调出小键盘

在页面加载时加入： 

                var asForm = System.Windows.Automation.AutomationElement.FromHandle(this.Handle);

 private void frmPadWIPCallMaterial_Load(object sender, EventArgs e)
        {
            try
            {
                var asForm = System.Windows.Automation.AutomationElement.FromHandle(this.Handle);//调出小键盘
                InitControl();
                if (mbLoadFlag == false && BindGV() == true)//&& BindGV() == true
                {
                    mbLoadFlag = true;
                }
            }
            catch (Exception ex)
            {
                CommonFunction.ShowMsgBox(ex.Message);
            }
        }