ExtJs 扩展类CheckColumn修改源码，支持按条件禁用启用下拉框功能

 1 Ext.ns('Ext.ux.grid');
 2 Ext.ux.grid.CheckColumn = Ext.extend(Ext.grid.Column, {
 3     editable: true,
 4     processEvent: function (name, e, grid, rowIndex, colIndex) {
 5         if (name == 'mousedown') {
 6             prj.curGrid = grid;
 7             this.init(name, e, grid, rowIndex, colIndex);
 8             var record = grid.store.getAt(rowIndex);
 9             this.fireEvent('checkchange', this, record.data[this.dataIndex]);
10             if (this.editable) {
11                 record.set(this.dataIndex, !record.data[this.dataIndex]);
12                 return false;
13             } else {
14                 return Ext.grid.ActionColumn.superclass.processEvent.apply(this, arguments);
15             }
16         } else {
17             return Ext.grid.ActionColumn.superclass.processEvent.apply(this, arguments);
18         }
19     },
20     renderer: function (v, p, record) {
21         p.css += ' x-grid3-check-col-td';
22         return String.format('<div class="x-grid3-check-col{0}">&#160;</div>', v ? '-on' : '');
23     },
24     init: Ext.emptyFn,
25     setEditable: function (f) {
26         this.editable = f;
27     }
28 });
29
30 // register ptype. Deprecate. Remove in 4.0
31 Ext.preg('checkcolumn', Ext.ux.grid.CheckColumn);
32
33 // backwards compat. Remove in 4.0
34 Ext.grid.CheckColumn = Ext.ux.grid.CheckColumn;
35
36 // register Column xtype
37 Ext.grid.Column.types.checkcolumn = Ext.ux.grid.CheckColumn;

 1             {
 2                 header: "证书", dataIndex: "MAT_CERTIFICATE", id: 'MAT_CERTIFICATE', width: 90, align: 'center', xtype: "checkcolumn", listeners: {
 3                     checkchange: function (column, checked) {
 4                         if (checked) {
 5                             certificateTypeCombo.disable();
 6                         } else {
 7                             certificateTypeCombo.enable();
 8                         }
 9                     }
10                 }
11             },
12             { header: "证书类型", dataIndex: "MAT_CERTIFICATE_TYPE", width: 120, align: 'center', editor: certificateTypeCombo, renderer: LCE_TYPE.toValue }
13 ------------------------------------------------------------
14     var LCE_TYPE = new Ext.data.RSStore({
15         url: "STL001.csx?tag=GetLceType",
16         fields: ["MSID_N","MSVALUE" ],
17         root: "data",
18         id: "MSID_N",
19         autoLoad: true,
20         toValue: function (v) {
21             var rec = LCE_TYPE.getById(v);
22             return rec ? rec.data.MSVALUE : v;
23         }
24     });
25
26     var certificateTypeCombo = new Ext.form.SComboBox({
27         store: LCE_TYPE,
28         displayField: 'MSVALUE',
29         valueField: 'MSID_N',
30         mode: 'local',
31         disabled: true,
32         triggerAction: 'all',
33         listeners: {
34             focus: function (res) {
35                 debugger;
36                 var res = c_grid.getSelectionModel().getSelections();
37                 if (res[0].data.MAT_CERTIFICATE == false) {
38                     certificateTypeCombo.disable()
39                 }
40                 else {
41                     certificateTypeCombo.enable() ;
42                 }
43             }
44         }
45     });