【应用场景】

已审核单据，单据体内的多选基础资料字段无法实现点击单元格弹出列表的功能，不方便单据查看

通过二开实现，方便单据查看

【注意事项】

需要单元格处于锁定状态

【案例演示】

【实现步骤】

<1>编写表单插件，代码如下。 

#region 单据体内的多选基础资料实现链接功能

        public override void EntryButtonCellClick(EntryButtonCellClickEventArgs e)
        {
            base.EntryButtonCellClick(e);
            ShowMulBaseDateList(e);
        }

        /// <summary>
        /// 单据体内的多选基础资料实现超链接功能
        /// 业务对象xml里多选基础资料字段外观需要加上
        ///           <ListColumnStyle>1</ListColumnStyle>
        ///           <BlAppLstColStyle>1</BlAppLstColStyle>
        /// </summary>
        /// <param name="e"></param>
        private void ShowMulBaseDateList(EntryButtonCellClickEventArgs e)
        {
            if (e.FieldKey.EqualsIgnoreCase("F_Jac_MulBase_83g"))
            {
                e.Cancel = true;
                ILookUpField field = this.View.BusinessInfo.GetField("F_Jac_MulBase_83g") as ILookUpField;
                if (field == null) return;
                FieldAppearance ap = ap = this.View.LayoutInfo.GetFieldAppearance("F_Jac_MulBase_83g");
                DynamicFormShowParameter parameter = null;
                DynamicObject activeRow = this.Model.GetEntityDataObject(((Field)field).Entity, e.Row);
                parameter = field.GetLookUpListParameter(this.Model, activeRow);
                parameter.ParentPageId = this.View.PageId;
                parameter.MultiSelect = false;
                string strCaption = ap.Caption;
                BaseDataField baseDatafield = ap.Field as BaseDataField;

                if (baseDatafield != null && baseDatafield.LookUpObject != null
    && baseDatafield.LookUpObject.Name != null && !baseDatafield.LookUpObject.Name.Equals(strCaption))
                {
                    strCaption += string.Format("({0})", baseDatafield.LookUpObject.Name);
                }
                if (baseDatafield == null || baseDatafield.LookUpObject == null) return;
                dynamic baseValue = this.Model.GetValue(baseDatafield.Key, e.Row);

                DynamicFormShowParameter listpara = null;
                string strPermissionItemId = "";
                if (parameter != null && parameter is ListShowParameter)
                {
                    listpara = parameter;
                }
                else
                {
                    listpara = new ListShowParameter()
                    {
                        FormId = baseDatafield.LookUpObject.FormId
                    };
                }

                if (baseDatafield.LookUpObject.PermissionControl == 1)
                {
                    strPermissionItemId = GetFormPermissionItemId(baseDatafield.LookUpObject.FormId, FormOperationEnum.View.ToString());
                }

                //打开的列表中只显示已选择的数据记录
                var baseValueCollection = baseValue as DynamicObjectCollection;
                if (baseValueCollection != null && baseValueCollection.Any())
                {
                    var pks = "";
                    var quotes = baseDatafield.LookUpObject.PkFieldType == EnumPkFieldType.STRING ? "'" : "";
                    foreach (var baseValueObj in baseValueCollection)
                    {
                        pks += string.Format("{0}{1}{0},", quotes, baseValueObj[1]);
                    }
                    var pkFilter = new ListRegularFilterParameter();
                    pkFilter.Filter = string.Format("{0} in ({1})", baseDatafield.LookUpObject.PkFieldName, pks.TrimEnd(','));
                    ((ListShowParameter)listpara).ListFilterParameter.MergeFilter(pkFilter);
                }

                if (strPermissionItemId.IsEmpty() == false)
                {
                    //加上打开列表的权限项
                    listpara.PermissionItemId = strPermissionItemId;
                }

                this.View.ShowForm(listpara);
            }
        }

        /// <summary>
        /// 获取单据的查看权限
        /// </summary>
        /// <param name="formId"></param>
        /// <param name="formOperation"></param>
        /// <returns></returns>
        private string GetFormPermissionItemId(string formId, string formOperation)
        {
            var fm = FormMetaDataCache.GetCachedFormMetaData(this.Context, formId);
            var opView = fm.BusinessInfo.GetForm().GetOperation(formOperation);
            if (opView != null && !opView.PermissionItemId.IsNullOrEmptyOrWhiteSpace())
            {
                return opView.PermissionItemId;
            }
            return string.Empty;
        }
        #endregion

<2>修改单据元数据。

    <2-1>若是自定义字段

    <2-2>若是预置字段或扩展下来的字段

随便修改一下多选基础资料字段的外观属性，保存

同样修改元数据，增加两行属性

<ListColumnStyle>1</ListColumnStyle>          <BlAppLstColStyle>1</BlAppLstColStyle>

<3>拷贝插件组件到应用站点的WebSite\Bin目录下，重启IIS。

<4>BOSIDE，注册表单插件，保存元数据，开发完毕。