【发布时间】:2016-06-10 09:46:28
【问题描述】:
我正在尝试将数据动态绑定到透视表头和项目。这是我如何绑定数据的编码。
类:
public class SubMenu
{
public SubMenu()
{
TestList = new List<SubMenu>();
ArticleDetails = new List<ArticleDetails>();
}
public string SectionId { get; set; }
public string ParentSectionId { get; set; }
public string TitleofAccess { get; set; }
public string SMenu { get; set; }
public string Headline { get; set; }
public List<ArticleDetails> ArticleDetails { get; set; }
public List<SubMenu> TestList { get; set; }
}
XAML.cs 代码:
private async Task GetArticlesListingData()
{
try
{
var subMenuList = new DataModel.SubMenu();
List<DataModel.ArticleDetails> detail = new List<DataModel.ArticleDetails>();
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, Constants.Constants.URL.LiveUrl + "/api/Menu/GetSubMenuList?parentSectionId=1");
request.Headers.Add("UserAgent", "Windows 8 app client");
HttpClient client = new HttpClient();
HttpResponseMessage response = await client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead);
var result = await response.Content.ReadAsStringAsync();
var rootObject = JArray.Parse(result);
for (var i = 0; i < rootObject.Count; i++)
{
subMenuList.TestList.Add(new DataModel.SubMenu()
{
SMenu = rootObject[i]["Title"].ToString(),
SectionId = rootObject[i]["SectionId"].ToString()
});
}
HttpRequestMessage request1 = new HttpRequestMessage(HttpMethod.Get, "http://52.70.18.77:84/api/News/NewsHome/Listing?recordCount=20§ionName=National&districtName=chennai");
request1.Headers.Add("UserAgent", "Windows 8 app client");
request1.Headers.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
request1.Headers.Add("Authorization", "bearer " + accessToken);
HttpClient client1 = new HttpClient();
HttpResponseMessage response1 = await client1.SendAsync(request1, HttpCompletionOption.ResponseHeadersRead);
var result1 = await response1.Content.ReadAsStringAsync();
result1 = Regex.Replace(result1, "<[^>]+>", string.Empty);
var rootObject1 = JArray.Parse(result1);
int mainitemsCount = rootObject1.Count();
for (int i = 0; i < mainitemsCount; i++)
{
subMenuList.ArticleDetails.Add(new DataModel.ArticleDetails
{
Articleid = rootObject1[i]["ArticleId"].ToString(),
Abstract = rootObject1[i]["Abstract"].ToString(),
URL = rootObject1[i]["Url"].ToString(),
HeadLine = rootObject1[i]["HeadLine"].ToString(),
});
}
pivotSubMenu.ItemsSource = subMenuList;
}
catch ()
{
}
}
这是我尝试绑定数据的 XAML 代码:
<Pivot x:Uid="Pivot" x:Name="pivotSubMenu" CommonNavigationTransitionInfo.IsStaggerElement="True"
SelectionChanged="pivotSubMenu_SelectionChanged">
<Pivot.HeaderTemplate>
<DataTemplate>
<ListView ItemsSource="{Binding TestList}">
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding SMenu}"/>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</DataTemplate>
</Pivot.HeaderTemplate>
<PivotItem>
<ListView Background="Brown" ItemsSource="{Binding ArticleDetails}"
ItemTemplate="{StaticResource ArticlesLisitngTemplate}" Margin="-17 0 -15 0">
</ListView>
</PivotItem>
</Pivot>
导致我的 Pivot 的输出
我想将一个列表中的数据绑定到标题,而将另一个列表绑定到PivotItem。
代码有什么问题吗。我无法在 UI 中查看数据。而且我的屏幕越来越空了。
请任何人建议继续进行。
【问题讨论】:
-
在绑定到 xaml 视图时始终使用 observable 集合。更新源时会更新用户界面
-
@eldho 能否请您在示例中解释如何使用 observable 集合来绑定数据,我以前没有使用过。谢谢。
-
ObservableCollection
集合;这是可观察到的字符串集合,您可以创建 ObservableCollection<DataModel.ArticleDetails>stackoverflow.com/questions/4279185/…
标签: c# xaml windows-phone-8.1