Extjs4 grid根据model自动生成列
/** * model中设置visible属性使该列可生成，设置editor可以传递编辑器， * model中设置columnName可传递列名，默认为model的name为列名 * grid中设置autoGenerateColumns: true,可使自动生成列 * author:dys1990@qq.com */Ext.override(Ext.grid.Panel, { initComponent: function() { this.autoGenerateColumn(); this.callParent(arguments); }});Ext.define('Ext.ux.AutoGenerateColumn', { autoGenerateColumn: function() { var me = this, noModel = Ext.isDefined(me.model) === false, noAutoGenerate = Ext.isDefined(me.autoGenerateColumns) === false; if (noModel && noAutoGenerate) { return; } if (me.autoGenerateColumns === true) { if(Ext.isString(me.model)) { me.model = Ext.ModelManager.getModel(me.model); } var modelFields = me.model.prototype.fields; me.columns = new Array(); // Adding columns to grid for (var i=0; i < modelFields.length; i++) { var modelField = modelFields.items[i]; var isVisible = (Ext.isDefined(modelField.visible) && (modelField.visible === true));var columnName; if (isVisible) { columnName=modelField.name; if(Ext.isDefined(modelField.columnName)){ columnName=modelField.columnName; } var column = { text: columnName, dataIndex: modelField.name }; if (modelField.type.type === 'floatOrString') { column.renderer = Ext.util.Format.numberOrString; }if(Ext.isDefined(modelField.editor)){column.editor=modelField.editor;} me.columns.push(column); } } } if (me.columns.length == 0) { Ext.Error.raise('No fields declared in ' + me.model.$className + ' with property visible. Columns will not be created!'); } }});Ext.grid.Panel.mixin('AutoGenerateColumn', Ext.ux.AutoGenerateColumn);