泛型/ JSON JavaScriptSerializer C#
我正在使用VS2008Express在NET3.5SP1中构建一个winForms应用程序。 我试图使用System.Web.Script.Serialization库反序列化一个对象。
错误是:类型'jsonWinForm.Category'不支持数组的反序列化。
干杯!
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Web;
using System.Net;
using System.IO;
using System.Web.Script.Serialization;
namespace jsonWinForm {
public class Category
{
public int categoryid;
public string name;
public int serverimageid;
public DateTime dateuploaded;
public bool enabled;
}
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
using (WebClient client = new WebClient())
{
//manipulate request headers (optional)
client.Headers.Add("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)");
string targetUri = "http://www.davemateer.com/ig/genius/category.php";
//execute request and read response as string to console
using (StreamReader reader = new StreamReader(client.OpenRead(targetUri)))
{
string s = reader.ReadToEnd();
textBox1.Text = s;
Category cat = new Category();
JavaScriptSerializer serializer = new JavaScriptSerializer();
// this fails with a
//Type 'jsonWinForm.Category' is not supported for deserialization of an array.
serializer.Deserialize<Category>(s);
}
}
}
}
}
很棒,你发现你的错误。 如果你正在寻找另一个JSON序列化工具,你可能想试试JSON.Net。
我发现我的错误..应该是:
干杯
JavaScriptSerializer serializer = new JavaScriptSerializer();
// create a generic list of categories
List<Category> listOfCategories = new List<Category>();
// deserialize as a list of Categories, and put into listOfCategories
listOfCategories = serializer.Deserialize<List<Category>>(s);
//iterate through list and display in text box
foreach (Category item in listOfCategories)
{
textBox2.Text += item.categoryid.ToString() + "rn";
textBox2.Text += item.name.ToString() + "rn";
textBox2.Text += item.serverimageid.ToString() + "rn";
textBox2.Text += item.dateuploaded.ToString() + "rn";
textBox2.Text += item.enabled.ToString() + "rn";
}
链接地址: http://www.djcxy.com/p/37869.html
上一篇: Generics / JSON JavaScriptSerializer C#
下一篇: How to tell Jackson to ignore a field during serialization if its value is null?