Question

我尝试使用此格式

[
    {
        name: 'Apple',
        data: [
            { name: 'April', y: 35 },
            { name: 'June', y: 1 }
        ]
    },
    {
        name: 'Orange',
        data: [
            { name: 'April', y: 7 },
            { name: 'July', y: 11 },
            { name: 'June', y: 7 },
            { name: 'May', y: 6 }
        ]
    }, 
    {
        name: 'Mango',
        data: [
            { name: 'July', y: 1 }
        ]
    }, 
    {
        name: 'Grapes', data: [
            { name: 'June', y: 1 }
        ]
    }, 
    {
        name: 'Cheery',
        data: [
            { name: 'June', y: 1 }
        ]
    }
];

所以我尝试使用此代码获取上述格式

var mdata1 = new TrackDataEntities1().spdatasumry(frDate, to_Date, RegNo)
            .Select(s => new { s.Name }).ToArray().Distinct();

foreach (var c in mdata1) {
    voil.Add(c.Name);
}

var sdata = new TrackDataEntities1().spdatasumry(frDate, to_Date, RegNo)
            .Select(s => new {s.Name,s.Month,s.total }).ToArray();

string data2 = "[";
foreach(string vo in voil) {
    data2 += "{name:'" + vo + "',";
    data2 += "data:[";

    foreach(string mo in vmonths) {
        decimal tv = 0;

        try {
            tv = sdata.Single(t => t.Month == mo && t.Name == vo).total;
        } catch {
            tv = 0;
        }

        if (tv > 0) {
            data2 += "{name:'" + mo + "',y:" + tv + "},";
        }
    }
    data2 += "]},";
}

data2 = data2.Remove(data2.Length - 1);
data2 += "]";

但上面的代码显示格式如下

在下面的代码中，该部分{name:'June',y:1},]},中有逗号，因此我想删除第二个,]},逗号以获得正确的格式

"[{name:'Apple',data:[{name:'April',y:35},{name:'June',y:1},]},
{name:'Orange',data:[{name:'April',y:7},{name:'July',y:11},{name:'June',y:7},{name:'May',y:6},]},
{name:'Mango',data:[{name:'July',y:1},]},
{name:'Grapes',data:[{name:'June',y:1},]},
{name:'Cheery',data:[{name:'June',y:1},]}]"

Answer 1

您在每个节点添加一个额外的逗号是错误的。您将不得不跳过在上一个节点中添加逗号，如下所示：

var i = 0;
foreach(string vo in voil) {
    data2 += "{name:'" + vo + "',";
    data2 += "data:[";

    var j = 0;
    foreach(string mo in vmonths) {
        decimal tv = 0;

        try {
            tv = sdata.Single(t => t.Month == mo && t.Name == vo).total;
        } catch {
            tv = 0;
        }

        if (tv > 0) {
            j++;
            if(vmonths.Length == j){
                data2 += "{name:'" + mo + "',y:" + tv + "}";
            }else{
                data2 += "{name:'" + mo + "',y:" + tv + "},";
            }
        }
    }
    i++;

    if(voil.Length == i){
        data2 += "]}";
    }else{
        data2 += "]},";
    }
}

JSON括号逗号

1 个答案: