如何在WPF的datd网格中添加字典（键和值）值？

本文介绍了如何在WPF的datd网格中添加字典（键和值）值？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 嗨朋友们， 我想将字典内容添加到数据网格中。 在WPF中，我尝试插入但网格显示为空。 Hi Friends,I want to add the dictionary contents into the data grid.In WPF, I tried to insert but grid shows as empty.dg = new DataGrid();dg.IsReadOnly = true;dg.HeadersVisibility = DataGridHeadersVisibility.None;dg.HorizontalScrollBarVisibility = ScrollBarVisibility.Visible;dg.VerticalScrollBarVisibility = ScrollBarVisibility.Auto;dg.AutoGenerateColumns = false;dg.CanUserSortColumns = false;dg.CanUserResizeColumns = false;dg.HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch;dg.VerticalAlignment = System.Windows.VerticalAlignment.Stretch;foreach (KeyValuePair<string, string=""> entry in spDic){ var data = new KeyValue { keyString = entry.Key, valString = entry.Value }; dg.Items.Add(data);}Grid.SetColumn(dg, 0);Grid.SetColumnSpan(dg, 5);Grid.SetRow(dg, 7);Grid.SetRowSpan(dg, 5);this.FormGrid.Children.Add(dg); 我的尝试： What I have tried:In above code i insert the Datagrid within <Grid Name="FormGrid"></Grid> at run time. 推荐答案 <DataGrid AutoGenerateColumns="True" ItemsSource="{Binding MyDictionaryObject}"> <DataGrid.Columns> <DataGridTextColumn Header="Key" Binding="{Binding Key}" /> <DataGridTextColumn Header="Value" Binding="{Binding Value}" /> </DataGrid.Columns></DataGrid> 您可能还需要创建一个ObservableDictionary对象来帮助WPF。 b $ b You may also need to create an ObservableDictionary object to help WPF.erializable]public class ObservableKeyValuePair<TKey,TValue>:INotifyPropertyChanged{ #region properties private TKey key; private TValue value; public TKey Key { get { return key; } set { key = value; OnPropertyChanged("Key"); } } public TValue Value { get { return value; } set { this.value = value; OnPropertyChanged("Value"); } } #endregion #region INotifyPropertyChanged Members [field:NonSerialized] public event PropertyChangedEventHandler PropertyChanged; public void OnPropertyChanged(string name) { PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) handler(this, new PropertyChangedEventArgs(name)); } #endregion}[Serializable]public class ObservableDictionary<TKey,TValue>:ObservableCollection<ObservableKeyValuePair<TKey,TValue>>, IDictionary<TKey,TValue>{ #region IDictionary<TKey,TValue> Members public void Add(TKey key, TValue value) { if (ContainsKey(key)) { throw new ArgumentException("The dictionary already contains the key"); } base.Add(new ObservableKeyValuePair<TKey, TValue>() {Key = key, Value = value}); } public bool ContainsKey(TKey key) { //var m=base.FirstOrDefault((i) => i.Key == key); var r = ThisAsCollection().FirstOrDefault((i) => Equals(key, i.Key)); return !Equals(default(ObservableKeyValuePair<TKey, TValue>), r); } bool Equals<TKey>(TKey a, TKey b) { return EqualityComparer<TKey>.Default.Equals(a, b); } private ObservableCollection<ObservableKeyValuePair<TKey, TValue>> ThisAsCollection() { return this; } public ICollection<TKey> Keys { get { return (from i in ThisAsCollection() select i.Key).ToList(); } } public bool Remove(TKey key) { var remove = ThisAsCollection().Where(pair => Equals(key, pair.Key)).ToList(); foreach (var pair in remove) { ThisAsCollection().Remove(pair); } return remove.Count > 0; } public bool TryGetValue(TKey key, out TValue value) { value = default(TValue); var r = GetKvpByTheKey(key); if (!Equals(r, default(ObservableKeyValuePair<TKey, TValue>))) { return false; } value = r.Value; return true; } private ObservableKeyValuePair<TKey, TValue> GetKvpByTheKey(TKey key) { return ThisAsCollection().FirstOrDefault((i) => i.Key.Equals(key)); } public ICollection<TValue> Values { get { return (from i in ThisAsCollection() select i.Value).ToList(); } } public TValue this[TKey key] { get { TValue result; if (!TryGetValue(key,out result)) { throw new ArgumentException("Key not found"); } return result; } set { if (ContainsKey(key)) { GetKvpByTheKey(key).Value = value; } else { Add(key, value); } } } #endregion #region ICollection<KeyValuePair<TKey,TValue>> Members public void Add(KeyValuePair<TKey, TValue> item) { Add(item.Key, item.Value); } public bool Contains(KeyValuePair<TKey, TValue> item) { var r = GetKvpByTheKey(item.Key); if (Equals(r, default(ObservableKeyValuePair<TKey, TValue>))) { return false; } return Equals(r.Value, item.Value); } public void CopyTo(KeyValuePair<TKey, TValue>[] array, int arrayIndex) { throw new NotImplementedException(); } public bool IsReadOnly { get { return false; } } public bool Remove(KeyValuePair<TKey, TValue> item) { var r = GetKvpByTheKey(item.Key); if (Equals(r, default(ObservableKeyValuePair<TKey, TValue>))) { return false; } if (!Equals(r.Value,item.Value)) { return false ; } return ThisAsCollection().Remove(r); } #endregion #region IEnumerable<KeyValuePair<TKey,TValue>> Members public new IEnumerator<KeyValuePair<TKey, TValue>> GetEnumerator() { return (from i in ThisAsCollection() select new KeyValuePair<TKey, TValue>(i.Key, i.Value)).ToList().GetEnumerator(); } #endregion} 这篇关于如何在WPF的datd网格中添加字典（键和值）值？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！