Question

这是我从服务器获得的响应，

:ok

event: data
data: {"target":42,"data": `{"text":"string","numer":0,"id":1234214214,"likes":0,"isNewInstance":true,"created":1458493863596,"edited":1458493863596},"type":"create"}`

但是，JSON的唯一部分是

{"text":"string","numer":0,"id":1234214214,"likes":0,"isNewInstance":true,"created":1458493863596,"edited":1458493863596},"type":"create"}

所以我想排除

:ok

event: data
data:

每次我尝试从服务器解析时，从我的解析

？

如何排除这个？

Answer 1

我同意服务器的更正，直到您可以执行该修补程序：

public class FirstLastDataTemplateSelector : DataTemplateSelector
{
    public DataTemplate DefaultTemplate { get; set; }
    public DataTemplate FirstItemTemplate { get; set; }
    public DataTemplate LastItemTemplate { get; set; }

    protected override DataTemplate SelectTemplateCore(object item, DependencyObject container)
    {
        var lv = GetListView(container);
        if (lv != null)
        {
            var i = lv.Items.IndexOf(item);
            if (i == 0)
            {
                return FirstItemTemplate;
            }
            else if (i == lv.Items.Count - 1)
            {
                return LastItemTemplate;
            }
        }
        return DefaultTemplate;
    }


    public static ListView GetListView(DependencyObject element)
    {
        var parent = VisualTreeHelper.GetParent(element);
        if (parent == null)
        {
            return null;
        }
        var parentListView = parent as ListView;
        return parentListView ?? GetListView(parent);
    }
}

这将打印出来：

{“target”：42，“data”：`{“text”：“string”，“numer”：0，“id”：1234214214，“likes”：0，“isNewInstance”：true，“created” “：1458493863596，” 编辑 “：1458493863596}，” 类型 “：” 创建“}

如何从服务器中排除数据以解析JSON？

1 个答案: