H5端在工作流审批界面显示审批路线二开示例。这样显示是会影响任务审批界面的加载速度，如果对效率无过高要求，可参考如下步骤实现。

先在BOS设计器中对元数据WF_AssignmentApproval（工作流审批界面元数据）进行扩展。

然后在对应的位置加上一个面板，面板标识为：F_PAEZ_Panel 截图如下：

然后加上表单插件，插件代码如下：

using Kingdee.BOS.Authentication;
using Kingdee.BOS.Core;
using Kingdee.BOS.Core.DynamicForm;
using Kingdee.BOS.Core.DynamicForm.PlugIn;
using Kingdee.BOS.Workflow.Model;
using Kingdee.BOS.Workflow.Models.EnumStatus;
using Kingdee.BOS.Workflow.ServiceHelper;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Kingdee.BOS.Printing.PlugIn.Test
{
    public class H5ShowChartFlowWay : AbstractDynamicFormPlugIn
    {
        public H5ShowChartFlowWay()
        { }

        public override void AfterBindData(EventArgs e)
        {
            base.AfterBindData(e);
            ShowChartFlowWay();
        }

        void ShowChartFlowWay()
        {
            var _currentAssignId = GetParameterAssignId(this.View);
            ApprovalItemStatus _assignStatus = GetParameterItemStatus(this.View);
            string procInstId = AssignmentServiceHelper.GetPrcInstByAssignId(this.View.Context, _currentAssignId, _assignStatus);
            DynamicFormShowParameter param = new DynamicFormShowParameter();
            param.PageId = Guid.NewGuid().ToString();
            param.FormId = WFDynamicFormConst.ChartFlowWay;
            param.CustomParams.Add("procInstId", procInstId);
            param.CustomParams.Add("hideMenu", true.ToString());         // 菜单隐藏
            param.OpenStyle.TagetKey = "F_PAEZ_Panel";
            param.OpenStyle.ShowType = ShowType.InContainer;

            this.View.ShowForm(param);
        }
        string GetParameterAssignId(IDynamicFormView view)
        {
            string result = Convert.ToString(view.OpenParameter.GetCustomParameter("AssignId"));
            if (string.IsNullOrWhiteSpace(result))
            {
                StartAppHomePageArgs homePageArgs = view.OpenParameter.GetCustomParameter(FormConst.StartAppArgs) as StartAppHomePageArgs;
                if (homePageArgs != null)
                {
                    result = homePageArgs.PkId;
                }
            }
            return result;
        }

        ApprovalItemStatus GetParameterItemStatus(IDynamicFormView view)
        {
            ApprovalItemStatus result = ApprovalItemStatus.UnCompleted;
            string itemStatus = Convert.ToString(view.OpenParameter.GetCustomParameter("Status"));
            if (!string.IsNullOrWhiteSpace(itemStatus))
            {
                result = ((ApprovalItemStatus)Enum.Parse(typeof(ApprovalItemStatus), itemStatus));
            }
            return result;
        }
    }
}

最终实现的效果如下所示：