wpf - 字典绑定(bind)到 ListView WPF

Question

我有一个包含字典项目的列表。这意味着

List[0] = Dictionary Item => Item[0] = id，Item[1] = 名称，Item[2] = 金额。

我需要以网格的方式在 ListView 控件中显示它。字典可能会有所不同。

更新:

列表中的每个项目如下所示:

["_id"] = "11212131"["标题"] = "这是标题"["DateCreated"] = "某个日期"

字典中的项目可以不同。

更新 2:

我正在使用以下代码创建一个动态 Gridview 控件，然后将列添加到 GridView 控件中。它可以工作，但现在有一条长长的水平线，由相同的重复列组成。我需要显示列名以及属于该列的数据。

  var gridview = new GridView();

            foreach (var o in objs)
            {
                var dic = o as Dictionary<String, Object>;
                var enumerator = dic.GetEnumerator();
                while (enumerator.MoveNext())
                {
                    var current = enumerator.Current;
                    var gridViewColumn = new GridViewColumn();
                    gridViewColumn.Header = current.Key; 
                    var binding = new Binding(current.Key);
                    //binding.Source = current;

                    gridViewColumn.DisplayMemberBinding = binding;

                    gridview.Columns.Add(gridViewColumn);

                }

                // new row 

            }

            lvCollections.View = gridview; 

更新 3:

我很接近。它可以工作，但它只显示一个带有重复列的长单行。

 var gridview = new GridView();


            foreach (var o in objs)
            {

                var dic = o as Dictionary<String, Object>;
                var enumerator = dic.GetEnumerator();
                while (enumerator.MoveNext())
                {var gridViewColumn = new GridViewColumn(); 
                    var current = enumerator.Current;
                    gridViewColumn.Header = current.Key;
                    var binding = new Binding();
                    binding.Source = current; 
                    binding.Path = new PropertyPath("Value"); 

                    gridViewColumn.DisplayMemberBinding = binding;
                    gridview.Columns.Add(gridViewColumn);

                }


                // new row 

            }

            lvCollections.ItemsSource = objs; 
            lvCollections.View = gridview; 

Answer 1

像这样生成您的 GridView 列:

public void OnDataContextChanged(...)
{
  var distinctKeys = (
    from dict in (List<Dictionary<string,object>>)DataContext
    from key in dict.Keys
    select key
  ).Distinct();

  gridView.Columns.ReplaceWith(
    from key in distinctKeys
    orderby key
    select new GridViewColumn
    {
      Header = key,
      DisplayMemberBinding = new Binding("[" + key + "]"),
    });
}

// The above code uses an extension method like this
static void ReplaceWith<T>(this ObserableCollection<T> collection, IEnumerable<T> newItems)
{
  collection.Clear();
  foreach(var item in newItems)
    collection.Add(item);
}

除非您的字典键包含特殊字符，否则这将起作用。完成这项工作的关键是绑定(bind)路径中的索引器语法('[' 和 ']')。