昨天写了一个ko+easyui的同样的实现，感觉写的太乱，用起来十分麻烦，于是今天照着edatagrid，写了一个etreegrid，这样再用ko绑定就方便多了。
使用很简单,$(tableId).etreegrid({idField:''parentIdField:'',treeField:'',saveUrl:'',deleteUrl:''});
还支持一些事件，onSave,onBeforeSave,onEdit,onAdd,onRemove；
Url可以不指定，指定Data即可。
/*** etreegrid - jQuery EasyUI* * Licensed under the GPL:* http://www.gnu.org/licenses/gpl.txt** Copyright 2013 maddemon [ zhengliangjun@gmail.com ] * * Dependencies:* treegrid* messager* */
(function ($) {function buildGrid(target) {var opts = $.data(target, 'etreegrid').options;$(target).treegrid($.extend({}, opts, {onDblClickCell: function (field, row) {if (opts.editing) {$(this).etreegrid("editRow", row);focusEditor(field);}},onClickCell: function (field, row) {if (opts.editId >= 0) {if (!trySaveRow()) {focusEditor(field);return;}}},onAfterEdit: function (row, changes) {//opts.editId = undefined;var url = row.isNewRecord ? opts.saveUrl : opts.updateUrl || opts.saveUrl;if (url) {$.post(url, row).done(function (json, statusText, xhr) {if (opts.editId === 0) {json = eval("(" + json + ")");//注意这个地方，接口返回的数据的格式，可以根据自己的情况修改$(target).treegrid("remove", opts.editId);var data = json.data;//console.log(data);$(target).treegrid("append", { parent: data[opts.parentIdField], data: [data] });} else {//refresh$(target).treegrid("refresh", row[opts.idField]);}opts.editId = undefined;}).error(function (xhr) {var result = eval("(" + xhr.responseText + ")");$.messager.alert("失败", result.message || result, "warning");});opts.onSave.call(target, row);} else {opts.onSave.call(target, row);}if (opts.onAfterEdit) opts.onAfterEdit.call(target, row);},onCancelEdit: function (row) {opts.editId = undefined;if (row.isNewRecord) {$(this).treegrid("remove", row[opts.idField]);}if (opts.onCancelEdit) opts.onCancelEdit.call(target, row);},onBeforeLoad: function (row, param) {if (opts.onBeforeLoad.call(target, row, param) == false) {return false;};$(this).treegrid("rejectChanges");}}));function trySaveRow() {if (!$(target).treegrid("validateRow", opts.editId)) {$(target).treegrid("select", opts.editId);return false;}if (opts.onBeforeSave.call(this, opts.editId) == false) {setTimeout(function () {$(target).treegrid('select', opts.editId);}, 0);return false;}$(target).treegrid('endEdit', opts.editId);return true;}function focusEditor(field) {var editor = $(target).treegrid('getEditor', { id: opts.editId, field: field });if (editor) {editor.target.focus();} else {var editors = $(target).treegrid('getEditors', opts.editId);if (editors.length) {editors[0].target.focus();}}}}$.fn.etreegrid = function (options, param) {if (typeof (options) == "string") {var method = $.fn.etreegrid.methods[options];if (method) {return method(this, param);} else {return this.treegrid(options, param);}}options = options || {};return this.each(function () {var state = $.data(this, "etreegrid");if (state) {$.extend(state.options, options);} else {$.data(this, "etreegrid", { options: $.extend({}, $.fn.etreegrid.defaults, $.fn.etreegrid.parseOptions(this), options) });};buildGrid(this);});};$.fn.etreegrid.parseOptions = function (target) {return $.extend({}, $.fn.treegrid.parseOptions(target), {});};$.fn.etreegrid.methods = {options: function (jq) {var opts = $.data(jq[0], "etreegrid").options;return opts;},enableEditing: function (jq) {return jq.each(function () {var opts = $.data(this, "etreegrid").options;opts.editing = true;});},disableEditing: function (jq) {return jq.each(function () {var opts = $.data(this, "etreegrid").options;opts.editing = false;});},editRow: function (jq, row) {return jq.each(function () {var dg = $(this);var opts = $.data(this, "etreegrid").options;var rowId = row[opts.idField];var editId = opts.editId;if (editId != rowId) {if (dg.treegrid("validateRow", editId)) {if (editId >= 0) {if (opts.onBeforeSave.call(this, editId) == false) {setTimeout(function () {dg.treegrid("select", editId);}, 0);return;}}dg.treegrid("endEdit", editId);dg.treegrid("beginEdit", rowId);opts.editId = rowId;var node = dg.treegrid("find", rowId);opts.onEdit.call(this, node);} else {setTimeout(function () {dg.treegrid("select", editId);}, 0);}}});},addRow: function (jq) {return jq.each(function () {var dg = $(this);var opts = $.data(this, "etreegrid").options;var editId = opts.editId;if (opts.editId >= 0) {if (!dg.treegrid("validateRow", editId)) {dg.treegrid("select", editId);return;}if (opts.onBeforeSave.call(this, opts.editId) == false) {setTimeout(function () {dg.treegrid('select', opts.editId);}, 0);return;}dg.treegrid('endEdit', opts.editId);} else {var selected = dg.treegrid("getSelected");var parentId = selected ? selected[opts.idField] : 0;var newRecord = {};newRecord[opts.idField] = 0;newRecord[opts.parentIdField] = parentId;console.log(newRecord)dg.treegrid("append", { parent: parentId, data: [newRecord] });if (parentId > 0) {var children = dg.treegrid("getChildren");}opts.editId = 0;dg.treegrid("beginEdit", opts.editId);dg.treegrid("select", opts.editId);}});},saveRow: function (jq) {return jq.each(function () {var dg = $(this);var opts = $.data(this, 'etreegrid').options;if (opts.editId >= 0) {if (!dg.treegrid("validateRow", opts.editId)) {dg.treegrid("select", opts.editId);return;}if (opts.onBeforeSave.call(this, opts.editId) == false) {setTimeout(function () {dg.treegrid('select', opts.editId);}, 0);return;}$(this).treegrid('endEdit', opts.editId);}});},cancelRow: function (jq) {return jq.each(function () {var rowId = $(this).etreegrid('options').editId;$(this).treegrid('cancelEdit', rowId);});},removeRow: function (jq) {return jq.each(function () {var dg = $(this);var opts = $.data(this, 'etreegrid').options;var row = dg.treegrid('getSelected');if (!row) return;if (row.isNewRecord) {dg.treegrid("remove", row[opts.idField]);return;}$.messager.confirm("确认", "确认删除这条数据吗？", function (r) {if (!r) return;var idValue = row[opts.idField];if (opts.deleteUrl) {$.post(opts.deleteUrl, { id: idValue }).done(function (json) {dg.treegrid("remove", idValue);opts.onRemove.call(dg[0], json, row);}).error(function (xhr) {var json = eval('(' + xhr.responseText + ')');$.messager.alert('错误', json.message || json, "warning");});} else {dg.datagrid('cancelEdit', idValue);dg.datagrid('deleteRow', idValue);opts.onRemove.call(dg[0], row);}});});}};$.fn.etreegrid.defaults = $.extend({}, $.fn.treegrid.defaults, {editing: true,editId: undefined,messager: {},url: null,saveUrl: null,updateUrl: null,deleteUrl: null,onAdd: function (row) { },onEdit: function (row) { },onBeforeSave: function (index) { },onSave: function (row) { },onRemove: function (row) { },});
})(jQuery);
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