DoJo增强网格动态更新约束不起作用

我有一个DoJo增强型数据网格，带有可编辑的数字文本框，并带有一些默认的min&最大限制.网格完全加载后，我需要更改约束.请提出同样的建议.下面是代码段，其中我将默认约束应用为最小值0和最大值100.

I have a DoJo enhanced data grid with editable number text box with some default min & max constraints. I need to change the constraints once grid loaded completely. Please advise on same. below is the code snippet, where i have applied default constraint as min 0 and max 100.

1. 是否可以在定义布局时从dataStore字段设置最小约束值和最大约束值，即minAge和maxAge?

2. 是否可以更新那些默认约束?

1. Is it possible to set min and max constraints values from the dataStore fields i.e minAge and maxAge while defining the layout?

2. If not is it possible to update those default constraints?

require(["dojox/grid/cells/dijit","dojox/grid/DataGrid"],function() {   
       window.masterlayout = [ [
        {'name' : 'Employee Name',styles:"word-wrap:break-word;", 'field' : 'msisdn',editable : false},
        {'name' : 'Min Age','field' : 'minAge' ,styles:"word-wrap:break-word;",editable : false},
        {'name' : 'Max age','field' : 'maxAge' ,styles:"word-wrap:break-word;",editable : false},
        {'name' : 'Age',
         'field' : 'age',
         'editable': true, 
          singleClickEdit :true,
         'alwaysEditing': false,
          styles:"word-wrap:break-word;",
          autoSave : false, 
          type:dojox.grid.cells._Widget, 
          widgetClass: dijit.form.NumberTextBox ,
          widgetProps: {required: true }, 
          constraint:{min:0,max:100,places:0} ,
          formatter : function(item, rowIndex, cell) { 
              var html = '<a href="javascript:ageLimitStatusGrid.edit.setEditCell(ageLimitStatusGrid.getCell(3),'+rowIndex+');">'+item+'</a>';
          return html; 
         }
       }
        ] ];
});

            var url = "Test URL";
            dataStore =new ServerSideStore({target:url});
            ageLimitStatusGrid = new EnhancedGrid({
                    store: dataStore,
                    structure: masterlayout,
                    selectionMode : 'none',
                    autoHeight : true,
                    //autoWidth : true,
                    autoRender : true,
                    queryOptions : {'deep' : true},
                    noDataMessage : '<span class="dojoxGridNoData">No Data found</span>',
                    loadingMessage : '<fmt_rt:message key="clls.loading.message"/>',
                    rowsPerPage: 5,
                    baseClass: 'balance_list',
                    plugins: {
                        pagination: { 
                            pageSizes: [],maxPageStep: 5,
                            description: true,
                            sizeSwitch: true,
                            position: "bottom"
                        }
                    }
            }, "ageLimitStatusGrid");
            ageLimitStatusGrid.startup();