var objs = { "name": "中海国际","blocks": [{ "id": 1, "name": "A座", "floors": [{ "id": 1, "name": "1F", "rooms": ["1001", "1002"] }, { "id": 2, "name": "2F", "rooms": ["2001", "2002"] }] }]}
console.log(objs.name)
for(var i=0i<objs.blocks.lengthi++){
var block = objs.blocks[i]
var floor = block.floors
console.log(objs.blocks[i].id+"~"+objs.blocks[i].name)
for(var j=0j<floor.lengthj++){
console.log(floor[j].id+"~"+floor[j].name)
var room = floor[j].rooms
for(var k=0k<room.lengthk++){
console.log(room[k])
}
}
}
</script>
无所谓有没有所谓的list数据,在序列化后传递到后端的结构都是根据的请求设置来定的,而json是有两种表示结构,对象和数组,而他们是可以任意混合的。list序列化后变成了json中的数组。后台取值可以在参数上获取,也可以在content上获取。所以Ajax如何传递JSON数据到controller,其中包括List数据,其实只要序列化这个对象给ajax即可。
datatable如果想转换成JSON类型的数据,是需要处理的。直接用微软提供的JavaScriptSerializer类直接序列化,会报错。
所以这里需要贴上两个方法,专门用来转换datatable的
#region DataTable转换为JSON/// <summary>
/// DataTable生成JSON
/// </summary>
/// <param name="dt"></param>
/// <returns></returns>
public static string CreateJSON(DataTable dt)
{
Dictionary<string, object> dit = new Dictionary<string, object>()
List<Dictionary<string, string>> list = DateTableConverter(dt)
if (list != null)
{
dit[dt.TableName] = DateTableConverter(dt)
return new JavaScriptSerializer().Serialize(dit)
}
else
{
return ""
}
}
/// <summary>
/// 将DataTable数据转化为字典类型
/// </summary>
/// <param name="dt"></param>
/// <returns></returns>
public static List<Dictionary<string, string>> DateTableConverter(DataTable dt)
{
List<Dictionary<string, string>> list = new List<Dictionary<string, string>>()
string cloName = string.Empty
foreach (DataRow dr in dt.Rows)
{
Dictionary<string, string> cloumn = new Dictionary<string, string>()
foreach (DataColumn dc in dt.Columns)
{
cloName = dc.ColumnName
cloumn.Add(cloName, dr[cloName].ToString())
}
list.Add(cloumn)
}
return list
}
#endregion
2.调用代码如下
DataTable table = new DataTable("Table1")DataColumn col1 = new DataColumn("ID", typeof(string))
DataColumn col2 = new DataColumn("Name", typeof(string))
table.Columns.Add(col1)
table.Columns.Add(col2)
DataRow row1 = table.NewRow()
row1["ID"] = "1"
row1["Name"] = "a"
table.Rows.Add(row1)
DataRow row2 = table.NewRow()
row2["ID"] = "2"
row2["Name"] = "b"
table.Rows.Add(row2)
string json = CreateJSON(table)
3.json结果如下
{"Table1":[{"ID":"1","Name":"a"},{"ID":"2","Name":"b"}]}4.数组中每一个元素,都是一行数据。只要循环遍历,然后将结果添加入你已经创建好的table中就可以了。还有疑问,继续追问吧。我先去吃饭了。
欢迎分享,转载请注明来源:内存溢出
评论列表(0条)