我想将json数据加载到我的wpf数据网格中。 我遵循了本教程:http://wpf-4-0.blogspot.com/2012/12/how-to-bind-json-data-to-datagrid-in.html
但出现问题,我不确定问题出在哪里。
我的xaml代码:
<Button Click="btnLoad_Click" Content="Load" Width="50" Grid.Row="0"></Button>
<DataGrid Grid.Row="1" x:Name="albuminfo" AutoGenerateColumns="True"></DataGrid>
C#代码:
private void btnLoad_Click(object sender, RoutedEventArgs e)
{
WebRequest req = WebRequest.Create("http://coderomusic.com/beta/SecuredAdministrator/mobile/getInfo.php?_mod=album");
req.ContentType = "application/json";
WebResponse resp = req.GetResponse();
Stream stream = resp.GetResponseStream();
StreamReader re = new StreamReader(stream);
string json = re.ReadToEnd();
json = "{\"AlbumDetail\":" + json + "}";
Wrapper w = (Wrapper)new JavaScriptSerializer().Deserialize(json, typeof(Wrapper));
albuminfo.ItemsSource = w.albumdetail;
}
AlbumDetail类:
public class AlbumDetail
{
#region//private property
private int albumId;
private string albumName;
private DateTime releasedate;
private int productionId;
private string duration;
private string category;
private string themes;
private ImageBrush coverImage;
private ImageBrush profileImage;
private string description;
private double albumPrice;
private double specialPrice;
private int[] artistIds;
#endregion
#region//public property
public int[] ArtistIds
{
get { return artistIds; }
set { artistIds = value; }
}
public double SpecialPrice
{
get { return specialPrice; }
set { specialPrice = value; }
}
public double AlbumPrice
{
get { return albumPrice; }
set { albumPrice = value; }
}
public string Description
{
get { return description; }
set { description = value; }
}
public ImageBrush ProfileImage
{
get { return profileImage; }
set { profileImage = value; }
}
public ImageBrush CoverImage
{
get { return coverImage; }
set { coverImage = value; }
}
public string Themes
{
get { return themes; }
set { themes = value; }
}
public string Category
{
get { return category; }
set { category = value; }
}
public string Duration
{
get { return duration; }
set { duration = value; }
}
public int ProductionId
{
get { return productionId; }
set { productionId = value; }
}
public DateTime Releasedate
{
get { return releasedate; }
set { releasedate = value; }
}
public string AlbumName
{
get { return albumName; }
set { albumName = value; }
}
public int AlbumId
{
get { return albumId; }
set { albumId = value; }
}
#endregion
}
和Wrapper类:
public class Wrapper
{
public List<AlbumDetail> albumdetail { get; set; }
}
最终结果如下图所示: https://dl.dropboxusercontent.com/u/59201118/json.JPG (Dropbox链接,因为我不允许发布图片!)
答案 0 :(得分:1)
您应该在后台线程上发出Web请求,然后使用dispatcher对象更新UI。我修改了你的代码以使它工作。以下是重点,
private static readonly ManualResetEvent AllDone = new ManualResetEvent(false);
private void BtnLoadClick(object sender, RoutedEventArgs e)
{
var request =
(HttpWebRequest)
WebRequest.Create("http://coderomusic.com/beta/SecuredAdministrator/mobile/getInfo.php?_mod=album");
request.ContentType = "application/json";
request.BeginGetResponse(GetResponseCallback, request);
AllDone.WaitOne();
}
private void GetResponseCallback(IAsyncResult ar)
{
var request = (HttpWebRequest) ar.AsyncState;
var response = (HttpWebResponse) request.EndGetResponse(ar);
Stream stream = response.GetResponseStream();
Wrapper w = null;
if (stream != null)
{
var re = new StreamReader(stream);
string json = re.ReadToEnd();
w = (Wrapper) new JavaScriptSerializer().Deserialize(json, typeof (Wrapper));
}
Dispatcher.BeginInvoke(
new Action(() => {
if (w != null)
albuminfo.ItemsSource = new ObservableCollection<AlbumDetail>(w.AlbumDetail);
}));
response.Close();
AllDone.Set();
}
根据您的需要进行更改。我希望它有效。
答案 1 :(得分:0)
简单方便地使用nuget中的jsonorm并通过(http://json2csharp.com/)
从收到的json创建数据层