【应用场景】

通过插件的方式，切换任意单据类型。

【案例演示】

采购订单，通过插件的方式切换单据类型。

【实现步骤】

<1>编写单据插件，代码如下。

using Kingdee.BOS.Core.Bill;
using Kingdee.BOS.Core.Bill.PlugIn;
using Kingdee.BOS.Core.DynamicForm;
using Kingdee.BOS.Core.DynamicForm.PlugIn.Args;
using Kingdee.BOS.Core.Metadata.FieldElement;
using Kingdee.BOS.Orm.DataEntity;
using Kingdee.BOS.Util;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Reflection;
namespace Jac.XkDemo.BOS.Business.PlugIn
{
    /// <summary>
    /// 【单据插件】切换单据类型
    /// </summary>
    [Description("【单据插件】切换单据类型"), HotUpdate]
    public class ChangeBillTypeAfterMainOrgChangedBillPlugIn : AbstractBillPlugIn
    {
        public override void BarItemClick(BarItemClickEventArgs e)
        {
            base.BarItemClick(e);
            if (e.BarItemKey.EqualsIgnoreCase("test"))
            {
                // 获取下一个单据类型
                var billTypeField = this.View.BillBusinessInfo.GetBillTypeField();
                var enumList = billTypeField.BuildEnumList();
                var currentBillTypeValue = ((DynamicObject)this.Model.GetValue(billTypeField))[0].ToString();
                var index = 0;
                for (; index < enumList.Count; ++index)
                {
                    if (currentBillTypeValue == enumList[index].Value)
                    {
                        break;
                    }
                }
                var nextIndex = index >= enumList.Count - 1 ? 0 : index + 1;
                var nextBillTypeValue = enumList[nextIndex].Value;
                var nextBillType = billTypeField.BillTypeInfo.First(o => o["Id"].ToString() == nextBillTypeValue);
                var nextLayoutId = nextBillType["LayoutSolution_Id"].ToString();
                // 切换单据类型并刷新视图
                BillTypeChanged1(nextBillTypeValue, nextLayoutId);
                //BillTypeChanged2(billTypeField, nextBillTypeValue);
            }
        }
        #region 方案1
        /// <summary>
        /// 切换单据类型（通过ShowForm刷新视图）
        /// </summary>
        /// <param name="billTypeId"></param>
        /// <param name="layoutId"></param>
        private void BillTypeChanged1(string billTypeId, string layoutId)
        {
            var para = new BillShowParameter();
            this.CopyCustomeParameter(para);
            para.OpenStyle.ShowType = ShowType.InCurrentForm;
            para.FormId = this.View.OpenParameter.FormId;
            para.DefaultBillTypeId = billTypeId;
            para.LayoutId = layoutId;
            para.Status = this.View.OpenParameter.Status;
            para.PKey = null;
            para.ParentPageId = this.View.OpenParameter.ParentPageId;
            // PageId必须确保一致
            para.PageId = this.View.PageId;
            // 本view标记为已经失效，需要重新构建
            this.View.OpenParameter.IsOutOfTime = true;
            this.View.ShowForm(para);
        }
        /// <summary>
        /// 复制用户定制的属性
        /// </summary>
        /// <param name="para"></param>
        private void CopyCustomeParameter(BillShowParameter para)
        {
            Type openParamType = this.View.OpenParameter.GetType();
            var properties = openParamType.GetProperties();
            var IsnotCustomerPropertyKeys = new List<string>() { "pk", "billType" };
            // 复制定制参数
            var customerParams = this.View.OpenParameter.GetCustomParameters();
            if (customerParams != null && customerParams.Count > 0)
            {
                foreach (var item in customerParams)
                {
                    if (IsnotCustomerPropertyKeys.Contains(item.Key)) continue;
                    if (item.Value == null) continue;
                    if (!(item.Value is string)) continue; // 只复制字符串参数
                    var prop = properties.FirstOrDefault(p => p.Name.EqualsIgnoreCase(item.Key));
                    if (prop != null) continue;
                    para.CustomParams[item.Key] = Convert.ToString(item.Value);
                }
            }
        }
        #endregion
        #region 方案2
        /// <summary>
        /// 切换单据类型(调用标准产品未公开方法)
        /// </summary>
        /// <param name="billTypeField"></param>
        /// <param name="value"></param>
        private void BillTypeChanged2(BillTypeField billTypeField, object value)
        {
            // private void BillTypeChanged(BillTypeField billTypeField, object value)
            var method = this.View.GetType().GetMethods(BindingFlags.Instance | BindingFlags.NonPublic).FirstOrDefault(o => o.Name == "BillTypeChanged" && o.GetParameters().Length == 2);
            if (method == null)
            {
                return;
            }
            method.Invoke(this.View, new[] { billTypeField, value });
        }
        #endregion
    }
}

<2>拷贝插件组件到应用站点的WebSite\Bin目录下，重启IIS。

<3>BOSIDE扩展采购订单，菜单集合新增菜单项，注册表单插件，保存元数据，开发完毕。

【功能验证】

<1>登录业务站点，打开采购订单新增界面，点击菜单test，即可按当前单据类型的下拉列表，自动切换到下一个单据类型。

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【金蝶云星空BOS二次开发案例演示】https://vip.kingdee.com/article/94751030918525696