ExtJs常用功能

1.判断内容是否修改

1)

var cgrid = query_panel.cgrid;
var v = cgrid.getValues();
//console.log(v);
if (v != "" && typeof (v) != "undefined") {
    Ext.Msg.alert(MsgMrg.OptMsg, '修改信息后请先保存!');
    return;
}

2)

if (cgrid.getStore().getModifiedRecords().length > 0) {
    Ext.Msg.alert(MsgMrg.OptMsg, '修改信息后请先保存!');
    return;
}

 2.获取选中行的某个值

listeners: {
    beforeload: function (v) {
    debugger
    Ext.apply(v.baseParams, {
        //SFields: ["USERID"],//
        //SFieldTypes: ['string'],
        //Relations: ["="],
        //SValues: ['qcy'],
        UserId:grid.getSelectionModel().getSelected().get('UserID')
        });
    }
}

3.后台返回json格式的输出

return "{success:false,msg:'不存在此按钮'}";

4.前台渐变弹窗

prityTip(MsgMrg.OptMsg, '已是启用状态!');

5.点击后弹出输入文本框弹窗

Ext.Msg.prompt(MsgMrg.OptMsg, "请填写启用原因", function (btn, text) {
                    if (btn == "ok") {
                        if (text == '' || text == null) {
                            Ext.Msg.alert(MsgMrg.OptMsg, '请填写启用原因！');
                            return;
                        }

                        //mainfunction                        

                    }
                })

6.根据列名获取在列中索引

var i= c_gridColumns.findColumnIndex("name");

7.store加载完后执行事件

store.load({
    callback: function () {
        var rec = store.getAt(0);
        console.log(rec);
        form_panel.getForm().reset();
        if (rec) {
            form_panel.getForm().loadRecord(rec);
        }
    }
});

 8.成功后选中状态失去

grid.success = function () {
    grid.getStore().load({
        callback: function () {
            grid.getStore().queryBy(function (r) {
                debugger;
                if (r.data.ID== curId) {
                    var arr = [r];
                    grid.getSelectionModel().selectRecords(arr);
                    //grid.success();
                    return true;
                }
            })
        }
    });
};