ASP.NET 将DataTable解析成JSON简介

这里解析json使用的是Newtonsoft.Json.dll程序集。下面请看code:

using System;
using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Data;

using Newtonsoft.Json;

/// <summary>

///DataTable解析JSON

/// </summary>

public class ConvertDataTable : JsonConverter

{

public ConvertDataTable()

{

//

//TODO: 在此处添加构造函数逻辑

//

}

public override bool CanConvert(Type objectType)

{

return typeof(DataTable).IsAssignableFrom(objectType);

}

public override object ReadJson(JsonReader reader, Type objectType)

{

throw new NotImplementedException();

}

public override void WriteJson(JsonWriter writer, object value)

{

DataTable dt = (DataTable)value;

writer.WriteStartArray();

foreach (DataRow dr in dt.Rows)

{

writer.WriteStartObject();

foreach (DataColumn dc in dt.Columns)

{

writer.WritePropertyName(dc.ColumnName);

writer.WriteValue(dr[dc].ToString());

}

writer.WriteEndObject();

}

writer.WriteEndArray();

}

}

使用上面这个类，然后再调用下面这个方法，就可以将datatable转换成json了。

JavaScriptConvert.SerializeObject(dt, new ConvertDataTable())