效果图：
原本的普通搜索帮助，改成上面这样层级的搜索帮助。这里只做了两级。
一，新建一个TREE节点
1.新建tree结构：ZGRTEXT
2.新建树叶节点处理类：
修改超类为CL_BSP_WD_TREE_NODE_PROXY
重定义取子节点的方法：(因为这里是两级节点，所以这步可以不用)
添加值属性节点GET方法：CODE的
修改方法的传入传出参数：CODE对应上面结构中的CODE
METHOD get_code. DATA:lr_entity TYPE REF TO if_bol_bo_property_access."cl_crm_bol_entity. IF me->bo IS BOUND. lr_entity = me->bo. lr_entity->get_property_as_string( EXPORTING iv_attr_name = 'CODE' RECEIVING rv_result = value ). ENDIF. ENDMETHOD.
添加文本描述的节点GET方法：
参数同上：KURZTEXT对应上面结构中的KURZTEXT
METHOD get_kurztext. DATA:lr_entity TYPE REF TO if_bol_bo_property_access."cl_crm_bol_entity. IF me->bo IS BOUND. lr_entity = me->bo. lr_entity->get_property_as_string( EXPORTING iv_attr_name = 'KURZTEXT' RECEIVING rv_result = value ). ENDIF. ENDMETHOD.
3.创建一级节点处理类：ZCL_LYTREE_PROXY_MAIN
同上一个类，重定义GET_CHILDREN方法：这里会使用到上面定义的处理类
method IF_BSP_WD_TREE_NODE~GET_CHILDREN. DATA:lr_coll TYPE REF TO if_bol_bo_col, lr_coll2 TYPE REF TO if_bol_bo_col, lr_entity TYPE REF TO if_bol_bo_property_access, "cl_crm_bol_entity, lr_child TYPE REF TO if_bsp_wd_tree_node, gt_qpgt TYPE TABLE OF zgrtext, gw_qpgt LIKE LINE OF gt_qpgt, lr_line TYPE REF TO zgrtext, lr_valuenode TYPE REF TO cl_bsp_wd_value_node, lr_col TYPE REF TO if_bol_bo_col. lr_entity ?= me->bo. TRY. lr_entity->get_properties( IMPORTING es_attributes = gw_qpgt ). IF gw_qpgt-codegr IS NOT INITIAL. SELECT a~sales_org a~zcode_catalog a~zprod_category a~zscode_id AS code b~kurztext INTO CORRESPONDING FIELDS OF TABLE gt_qpgt FROM ziriscode_config AS a INNER JOIN qpct AS b ON a~zcode_catalog = b~katalogart AND a~zprod_category = b~codegruppe AND a~zscode_id = b~code WHERE a~sales_org = gw_qpgt-sales_org AND a~zcode_catalog = gw_qpgt-zcode_catalog AND a~zprod_category = gw_qpgt-zprod_category AND a~zfcode_id = gw_qpgt-codegr AND b~sprache = sy-langu. ENDIF. IF gt_qpgt IS NOT INITIAL. CREATE OBJECT lr_col TYPE cl_crm_bol_bo_col. LOOP AT gt_qpgt INTO gw_qpgt. CREATE DATA lr_line. CREATE OBJECT lr_valuenode EXPORTING iv_data_ref = lr_line. lr_valuenode->set_properties( gw_qpgt ). lr_col->add( lr_valuenode ). lr_entity ?= lr_col->get_last( ). IF lr_entity IS BOUND. lr_child = me->node_factory->get_proxy( iv_bo = lr_entity iv_proxy_type = 'ZCL_CATE_PROXY_CUSTOMER' iv_parent_proxy = me ). lr_child->is_leaf = abap_true. APPEND lr_child TO rt_children. ENDIF. ENDLOOP. ENDIF. CATCH cx_crm_genil_model_error. ENDTRY. endmethod.
同样添加CODE GROUP和GROUP TEXT的GET方法：
METHOD get_codegr. DATA:lr_entity TYPE REF TO if_bol_bo_property_access. IF me->bo IS BOUND. lr_entity = me->bo. lr_entity->get_property_as_string( EXPORTING iv_attr_name = 'CODEGR' RECEIVING rv_result = value ). ENDIF. ENDMETHOD.
method GET_KURZTEXT. DATA:lr_entity TYPE REF TO if_bol_bo_property_access. IF me->bo IS BOUND. lr_entity = me->bo. lr_entity->get_property_as_string( EXPORTING iv_attr_name = 'KURZTEXT' RECEIVING rv_result = value ). ENDIF. endmethod.
4.执行事务代码BSP_WD_CMPWB，输入组件名，点击创建ZLYTREE
5.Component Controller 中新建参数节点：COND都是从上面的结构中选取的字段
需求是根据销售组织，品类，编码组 来显示对应的编码搜索帮助
使用最上面的结构做为值节点：
6.新建视图表类型视图，可配置，VALUE node还是上面的结构
给视图添加值节点：
给值节点添加字段：
视图类型选择表视图，可配置：
7.修改CODE节点下的属性类，改其超类为：CL_BSP_WD_CONTEXT_NODE_TREE
8.修改视图的HTML属性：
<chtmlb:configTree id = "ConfCellTable" nodeTable = "<%= code->node_tab %>" nodeTextColumn = "CODEGR" onCollapseNode = "COLLAPSE" onExpandNode = "EXPAND" onRowSelection = "SELECT" selectionMode = "SINGLESELECT" onNodeClick = 'CLICK' selectedRowIndexTable = "<%= CODE->SELECTION_TAB %>" selectedRowIndex = "<%= CODE->SELECTED_INDEX %>" type = "<%= CL_THTMLB_TREE=>GC_TYPE_COLUMN %>" usage = "EDITLIST" downloadToExcel = "FALSE" noFrame = "X" personalizable = "TRUE" table = "//CODE/Table" visibleRowCount = "10" xml = "<%= controller->configuration_descr->get_config_data( ) %>" />
需要注意的是上面的nodeTable属性，是节点->属性code是节点名table也对应的是节点表CODE
点击保存。此时推出界面，然后重新进入，节点就已经变成tree了：
9.重定义刷新功能REFRESH:使用上面定义的类，
METHOD refresh. super->refresh( ). DATA:lr_entity TYPE REF TO cl_crm_bol_entity, lr_coll_wr TYPE REF TO cl_bsp_wd_collection_wrapper, lr_iterator TYPE REF TO if_bol_bo_col_iterator, lr_root TYPE REF TO if_bsp_wd_tree_node. DATA:lv_ent_pro TYPE REF TO if_bol_bo_property_access, lv_ent TYPE REF TO cl_crm_bol_entity, lr_col TYPE REF TO if_bol_bo_col.. TRY. lv_ent_pro ?= me->collection_wrapper->get_first( )."get_current( ). WHILE lv_ent_pro IS BOUND. lr_root = me->node_factory->get_proxy( iv_bo = lv_ent_pro iv_proxy_type = 'ZCL_CATE_PROXY_MAIN' ). lr_root->node_key = add_root_node( lr_root ). lv_ent_pro ?= me->collection_wrapper->get_next( ). ENDWHILE. CATCH cx_sy_move_cast_error cx_sy_ref_is_initial. ENDTRY. ENDMETHOD.
10.冲定义DO_INIT_CONTEXT，初始化节点值
METHOD do_init_context. *SUPER->DO_INIT_CONTEXT( ). DATA:gt_qpgt TYPE TABLE OF zgrtext, gw_qpgt LIKE LINE OF gt_qpgt, lr_line TYPE REF TO zgrtext, lr_valuenode TYPE REF TO cl_bsp_wd_value_node, lr_col TYPE REF TO if_bol_bo_col, * lr_comp TYPE REF TO zl_zcategor_bspwdcomponen_impl, gr_cond TYPE REF TO if_bol_bo_property_access, gw_cond TYPE zgrcond. * lr_comp ?= me->comp_controller. * IF lr_comp IS BOUND. * gr_cond = lr_comp->typed_context->cond->collection_wrapper->get_current( ). * IF gr_cond IS BOUND. * gr_cond->get_properties( * IMPORTING * es_attributes = gw_cond ). * * ENDIF. * ENDIF. SELECT a~zfcode_id AS codegr a~sales_org a~zcode_catalog a~zprod_category b~kurztext AS kurztext INTO CORRESPONDING FIELDS OF TABLE gt_qpgt FROM ziriscode_config AS a INNER JOIN qpct AS b ON a~zcode_catalog = b~katalogart AND a~zprod_category = b~codegruppe AND a~zfcode_id = b~code WHERE a~sales_org = 'O 50000005'"gw_cond-sales_org AND a~zcode_catalog = 'Z1'"gw_cond-katalogart AND a~zprod_category = 'TV1'"gw_cond-codegr AND b~sprache = sy-langu. SORT gt_qpgt. DELETE ADJACENT DUPLICATES FROM gt_qpgt COMPARING ALL FIELDS. CREATE OBJECT lr_col TYPE cl_crm_bol_bo_col. LOOP AT gt_qpgt INTO gw_qpgt. CREATE DATA lr_line. CREATE OBJECT lr_valuenode EXPORTING iv_data_ref = lr_line. lr_valuenode->set_properties( gw_qpgt ). lr_col->add( lr_valuenode ). ENDLOOP. me->typed_context->code->collection_wrapper->set_collection( lr_col ). ENDMETHOD.
11.冲定义DO_PREPARE_OUTPUT方法，显示节点
method DO_PREPARE_OUTPUT. *SUPER->DO_PREPARE_OUTPUT( ** iv_first_time = ABAP_FALSE * ). IF me->typed_context->code->node_tab IS INITIAL. me->typed_context->code->refresh( ). ENDIF. super->do_prepare_output( iv_first_time = abap_false ). endmethod.
12.将视图添加到窗口中，设为默认
13.双击视图，点击配置页面：
这时候点击运行，就可以看到结果啦：
默认显示的是10行，这个可以在上面的配置显示行中设定，100，200.。。
14.到这里只是显示出来了，还有展开和关闭按钮功能没做，新加事件处理(EXPAND对应前面html里的方法名)
method EH_ONEXPAND. DATA:lr_event_ic TYPE REF TO cl_crm_ic_tree, lr_event_thtmlb TYPE REF TO cl_thtmlb_tree. FIELD-SYMBOLS:<fs_line> TYPE crmt_bsp_treetable_node. TRY. lr_event_ic ?= htmlb_event_ex. typed_context->code->collapse_node( lr_event_ic->row_key ). CATCH cx_sy_move_cast_error. TRY. lr_event_thtmlb ?= htmlb_event_ex. typed_context->code->expand_node( lr_event_thtmlb->row_key ). CATCH cx_sy_move_cast_error. ENDTRY. ENDTRY. endmethod.
到这里就可以点击展开按钮了，但是不能关闭：
METHOD eh_oncollapse. DATA:lr_event_ic TYPE REF TO cl_crm_ic_tree, lr_event_thtmlb TYPE REF TO cl_thtmlb_tree. FIELD-SYMBOLS:<fs_line> TYPE crmt_bsp_treetable_node. TRY. lr_event_ic ?= htmlb_event_ex. typed_context->code->collapse_node( lr_event_ic->row_key ). CATCH cx_sy_move_cast_error. TRY. lr_event_thtmlb ?= htmlb_event_ex. typed_context->code->collapse_node( lr_event_thtmlb->row_key ). CATCH cx_sy_move_cast_error. ENDTRY. ENDTRY. ENDMETHOD.
到这就可以展开和关闭二级项目了。。。
15。下面额外加点东西。
如果这个东西做成搜索帮助，需要点击选中返回。这里是用清空节点，并绑定单值回节点。
METHOD eh_onselect. "ZCATEGORY/CUCATE DATA: ls_zgrtext TYPE zgrtext. DATA lr_context_node_tree TYPE REF TO cl_bsp_wd_context_node_tree. DATA lr_node TYPE REF TO if_bsp_wd_tree_node. DATA lr_tree_event TYPE REF TO cl_thtmlb_tree. DATA lr_category TYPE REF TO if_bol_bo_property_access. DATA lv_sel_index TYPE int4. DATA :lv_row_index TYPE int4, lr_comp TYPE REF TO zl_zcategor_bspwdcomponen_impl, lr_window TYPE REF TO cl_bsp_wd_window. TRY. lr_tree_event ?= htmlb_event_ex. IF lr_tree_event IS BOUND. lv_row_index = lr_tree_event->row_index. ENDIF. CATCH cx_sy_move_cast_error. "#EC NO HANDLER. EXIT. ENDTRY. lr_context_node_tree ?= me->typed_context->tree. lv_sel_index = lr_context_node_tree->selected_index. IF lv_row_index EQ lv_sel_index. lr_node = lr_context_node_tree->get_node_by_index( iv_index = lv_row_index ). lr_node->selected = abap_false. ELSEIF lv_row_index IS NOT INITIAL AND lv_row_index > 0. lr_context_node_tree->eh_on_row_selection( iv_htmlb_event_ex = lr_tree_event ). * Get the corresponding category lr_category ?= me->typed_context->tree->get_bo_by_index( lv_row_index ). CHECK lr_category IS BOUND. TRY . lr_category->get_properties( IMPORTING es_attributes = ls_zgrtext ). CATCH cx_root. ENDTRY. lr_comp ?= me->comp_controller. lr_comp->typed_context->tree->collection_wrapper->clear_collection( ). lr_comp->typed_context->tree->collection_wrapper->add( iv_entity = lr_category iv_set_focus = abap_true ). lr_window = me->view_manager->get_window_controller( ). lr_window->call_outbound_plug( iv_outbound_plug = 'CATE_SELECT' ). ENDIF. * ENDIF. ENDMETHOD.
双击窗口，添加传入导航链接：IP_CODE_SEARCH
METHOD ip_code_search. DATA:lr_tabline TYPE REF TO zcrmstock, lr_valuenode TYPE REF TO cl_bsp_wd_value_node, lr_stock TYPE REF TO if_bol_bo_col, lr_control TYPE REF TO ZL_ZLYTREE_BSPWDCOMPONENT_IMPL, * lr_control TYPE REF TO zl_zcategor_bspwdcomponen_impl, lr_category TYPE REF TO if_bol_bo_property_access. DATA: lr_cuco TYPE REF TO zl_zcategor_cutree_impl . lr_cuco ?= me->get_custom_controller( 'ZLYTREE/CUCODE' ). * lr_category = iv_collection->get_current( ). * lr_control->typed_context->cond->clear_collection( ). * me->typed_context->cond->collection_wrapper->add( iv_entity = lr_category * iv_set_focus = abap_true ). "清空客户化控制器 lr_cuco->typed_context->code->clear_collection( ). "对控制器进行赋值 * lr_control->typed_context->cond->set_collection( collection = * iv_collection ). "LR_STOCK ). ENDMETHOD.
效果如下：
