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刚写的B/S高级查询界面(基于ExtJs框架)

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这几天赶着做一个B/S系统,基于ExtJs框架,从中学了不少东西,今天写的高级查询界面感觉比较有意义,很多人应该也用得着,特拿出来共享一下。当然没正式完工,余下与服务器交互、Lookup列表、取生成查询条件一部分没有完成,做得有点腻了,先放出来,曾经做过的不妨交流一下。

 

界面:

 

代码:

 

<DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html><head><title>XXXX系统V1.0</title>
<meta name="Author" contect="彭国辉">
<meta name="Keywords" content="blog:http://blog.csdn.net/nhconch" />
<meta http-equiv="Content-Type" content="text/html; charset=utf8">
<link rel="stylesheet" type="text/css" href="resources/css/ext-all.css">
<link rel="stylesheet" type="text/css" href="resources/css/hndc.css">
<script type="text/javascript" src="adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="ext-all.js"></script>
<script type="text/javascript" src="source/locale/ext-lang-zh_CN.js"></script>
<script type="text/javascript">
Ext.BLANK_IMAGE_URL = 'resources/images/default/s.gif';
Ext.onReady(function () {

var dsPQ=new Ext.data.JsonStore({
   fields:["idx","relation","leftParenthesis","fieldname","operator","value","rightParenthesis"] 
});
var fieldsDef = new Ext.data.JsonStore({
    fields: ['value','text','type'],
    data:[
        {value:'A.Billno',text:'预约单号',type:'string'},
        {value:'A.Date',text:'时间',type:'date'},
        {value:'A.boolean',text:'布尔',type:'boolean'},
        {value:'A.int',text:'整形',type:'int'},
        {value:'A.float',text:'浮点',type:'float'},
        {value:'A.lookup',text:'Lookup',type:'lookup',data:[[1,'list1'],[2,'list2'],[3,'list3']]}
    ]
});

var numericOp = datetimeOp = new Ext.data.SimpleStore({
    fields: ['value','text'],
    data : [['=','='],['<>','<>'],['<','<'],['<=','<='],['<','>'],['>=','>='],['is null','空白'],['is not null','非空白']]
});
var stringOp = new Ext.data.SimpleStore({
    fields: ['value','text'],
    data : [['=','='],['<>','<>'],['<','<'],['<','>'],
    ['like |%','以...开头'],['like %|','以...结尾'],['like %|%','包含字符'],['not like %|%','不包含字符'],
    ['is null','空白'],['is not null','非空白']]
});
var lookupOp = booleanOp = new Ext.data.SimpleStore({
    fields: ['value','text'],
    data : [['=','='],['<>','<>'],['is null','空白'],['is not null','非空白']]
});

var objGridTextEditor = new Ext.grid.GridEditor(new Ext.form.TextField());
//var objGridMemoEditor = new Ext.grid.GridEditor(new Ext.form.TextArea());
var objGridDateEditor = new Ext.grid.GridEditor(new Ext.form.DateField({format:'Y-m-d'}));
var objGridIntegerEditor = new Ext.grid.GridEditor(new Ext.form.NumberField({allowBlank:false,allowNegative:false,allowDecimals:false}));
var objGridFloatEditor = new Ext.grid.GridEditor(new Ext.form.NumberField({allowBlank:false,allowNegative:false}));
var objGridBooleanEditor = new Ext.grid.GridEditor(new Ext.form.ComboBox({
    store: [[true,'是'],[false,'否']],
    mode: 'local',
    readOnly: true,
    triggerAction: 'all',
    allowBlank: false,
    editable: false,
    forceSelection: true,
    blankText:'请选择...'
}));
var objGridLookupEditor = new Ext.grid.GridEditor(new Ext.form.ComboBox({
    //store: [],
    mode: 'local',
    readOnly: true,
    triggerAction: 'all',
    allowBlank: false,
    editable: false,
    forceSelection: true,
    blankText:'请选择...'
}));

function fileListChange(field,newValue,oldValue){
    //alert(field);
}
function findRecordValue(store,prop, propValue,field){
    var record;
    if(store.getCount() > 0){
        store.each(function(r){
            if(r.data[prop] == propValue){
                rrecord = r;
                return false;
            }
        });
    }
    return record ? record.data[field] : '';
}
function displayOperator(v){
    switch(v){
        case 'is null': return '空白';
        case 'is not null': return '非空白';
        case 'like |%': return '以...开头';
        case 'like %|': return '以...结尾';
        case 'like %|%': return '包含字符';
        case 'not like %|%': return '不包含字符';
        default: return v;
    }
}
function displayValue(v, params, record){
    var dataType = findRecordValue(fieldsDef,'value',record.get('fieldname'),'type');
    var operator = record.get('operator');
    if (operator=='is null'||operator=='is not null') return '';
    switch(dataType){
        case 'date': return v ? v.dateFormat('Y-m-d'): '';
        case 'boolean': return (v?'是':'否');
        default: return v;
    }
}

var qRowData = Ext.data.Record.create([
    {name:'idx',type:'int'},
    {name:'relation',type:'string'},
    {name:'leftParenthesis',type:'string'},
    {name:'fieldname',type:'string'},
    {name:'operator',type:'string'},
    {name:'value',type:'string'},
    {name:'rightParenthesis',type:'string'}
]);

var dsPQ=new Ext.data.JsonStore({
   data:[],
   fields:["idx","relation","leftParenthesis","fieldname","operator","value","rightParenthesis"] 
});

var colM=new Ext.grid.ColumnModel([
    {
        header:"关系",
        dataIndex:"relation",
        width:50,
        renderer: function(v){return (v=='and'?'并且':'或者')},
        editor:new Ext.form.ComboBox({ 
            store: [['and','并且'],['or','或者']],
            mode: 'local',
            readOnly: true,
            triggerAction: 'all',
            allowBlank: false,
            editable: false,
            forceSelection: true,
            blankText:'请选择'
        })
    },{
        header:"括号",
        dataIndex:"leftParenthesis",
        width:40,
        editor:new Ext.form.ComboBox({
            store: ['(','((','((','(((','(((('],
            mode: 'local',
            triggerAction: 'all',
            valueField: 'value',
            displayField: 'text',
            editable: false
        })
    },{
        header:"字段名",
        dataIndex:"fieldname",
        width:130,
        renderer: function(v){return findRecordValue(fieldsDef,'value',v,'text');},
        editor:new Ext.form.ComboBox({
            store: fieldsDef,
            mode: 'local',
            triggerAction: 'all',
            valueField: 'value',
            displayField: 'text',
            editable: false,
            listeners:{change:fileListChange}
        })
    },{
        header:"运算符",
        width:80,
        dataIndex:"operator",
        renderer: displayOperator
    },{
        header:"内容",
        dataIndex:"value",
        width:130,
        renderer: displayValue
    },{
        header:"括号",
        width:40,
        dataIndex:"rightParenthesis",
        editor:new Ext.form.ComboBox({
            store: [')','))',')))','))))'],
            mode: 'local',
            triggerAction: 'all',
            valueField: 'value',
            displayField: 'text',
            editable: false
        })
    }
]);

var grdDPQuery = new Ext.grid.EditorGridPanel({
    height:500,
    width:490,
    renderTo:"hello",   
    cm:colM,
    sm:new Ext.grid.RowSelectionModel({singleSelect:false}),
    store:dsPQ,
    region:'center',
    border: false,
    enableColumnMove: false,
    enableHdMenu: false,
    loadMask: {msg:'加载数据...'},
    clicksToEdit:1,
    tbar:[
        {text:'添加',handler:function(){
                var count = dsPQ.getCount();
                var r = new qRowData({idx:dsPQ.getCount(),relation:'and',leftParenthesis:'',fieldname:'',operator:'=',value:'',rightParenthesis:''});
                dsPQ.commitChanges();
                dsPQ.insert(count,r);
            }
        },
        {text:'删除',handler:function(){
                //store = grid.getStore();
                var selections = grdDPQuery.getSelectionModel().getSelections();
                for(var i = 0; i < selections.length; i++){ 
                    dsPQ.remove(selections[i]); 
                }
            }
        },
        {text:'全部清除',handler:function(){dsPQ.removeAll();}}
    ],
    listeners: {
        afteredit: function(e){
            if (e.column==2/*e.field=='fieldname'*/){
                var oldDataType = findRecordValue(fieldsDef,'value',e.originalValue,'type');
                var newDataType = findRecordValue(fieldsDef,'value',e.value,'type');
                if (oldDataType!=newDataType){
                    e.record.set('operator', '=');
                    e.record.set('value', '');
                }
            }
        },
        cellclick: function(grid, rowIndex, columnIndex, e){
            if (columnIndex!=3&&columnIndex!=4) return;
            var record = grid.getStore().getAt(rowIndex);  // Get the Record
            //var fieldName = grid.getColumnModel().getDataIndex(columnIndex); // Get field name
            //var data = record.get(fieldName);
            var dataType = findRecordValue(fieldsDef,'value',record.get('fieldname'),'type');
            if (dataType=='') return;//未选定字段,退出
            if (columnIndex==3){//绑定运算符
                var grdEditor = grid.colModel.getCellEditor(columnIndex,rowIndex);
                if (grdEditor) grdEditor.destroy();
                var _store;
                switch(dataType){
                    case 'string': _store = stringOp; break;
                    case 'date': _store = datetimeOp; break;
                    case 'boolean': _store = booleanOp; break;
                    case 'int':
                    case 'float': _store = numericOp; break;
                    case 'lookup': _store = lookupOp; break;
                }
                grdEditor = new Ext.form.ComboBox({
                    store: _store,
                    mode: 'local',
                    triggerAction: 'all',
                    valueField: 'value',
                    displayField: 'text',
                    editable: false
                })
                grid.colModel.setEditor(columnIndex, new Ext.grid.GridEditor(grdEditor));
            }
            else if (columnIndex==4){//绑定编辑器
                var operator = record.get('operator');
                if (operator=='is null'||operator=='is not null'){
                    grid.colModel.setEditor(columnIndex, null);
                    return;
                }
                var grdEditor;
                switch(dataType){
                    case 'string': grdEditor = objGridTextEditor; break;
                    case 'date': grdEditor = objGridDateEditor; break;
                    case 'boolean': grdEditor = objGridBooleanEditor; break;
                    case 'int': grdEditor = objGridIntegerEditor; break;
                    case 'float': grdEditor = objGridFloatEditor; break;
                    case 'lookup': grdEditor = objGridLookupEditor; break;
                }
                if (grid.colModel.getCellEditor(columnIndex,rowIndex)!=grdEditor){
                    grid.colModel.setEditor(columnIndex, grdEditor);
                }
            }
        }
    }
});

});
</script>
</head><div id="hello"></div><body>
</body></html>
文章出处:DIY部落(http://www.diybl.com/course/1_web/javascript/Javascriptxl/2008921/144280.html)

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