1
這是一個奇怪的問題。我正在使用數據表單,當我編輯數據時,保存按鈕被啓用,但取消按鈕不是。數據更改時未啓用DataForm提交按鈕
環顧了一下後,我發現我必須實現IEditableObject才能取消編輯。偉大的我做到了(這一切工作),但現在提交按鈕(保存)是灰色的,哈哈。任何人有任何想法,爲什麼提交按鈕不會再激活?
的Xaml
<df:DataForm x:Name="_dataForm"
AutoEdit="False"
AutoCommit="False"
CommandButtonsVisibility="All">
<df:DataForm.EditTemplate >
<DataTemplate>
<StackPanel Name="rootPanel"
Orientation="Vertical"
df:DataField.IsFieldGroup="True">
<!-- No fields here. They will be added at run-time. -->
</StackPanel>
</DataTemplate>
</df:DataForm.EditTemplate>
</df:DataForm>
結合
DataContext = this;
_dataForm.ItemsSource = _rows;
...
TextBox textBox = new TextBox();
Binding binding = new Binding();
binding.Path = new PropertyPath("Data");
binding.Mode = BindingMode.TwoWay;
binding.Converter = new RowIndexConverter();
binding.ConverterParameter = col.Value.Label;
textBox.SetBinding(TextBox.TextProperty, binding);
dataField.Content = textBox;
// add DataField to layout container
rootPanel.Children.Add(dataField);
數據類定義
public class Row : INotifyPropertyChanged , IEditableObject
{
public void BeginEdit()
{
foreach (var item in _data)
{
_cache.Add(item.Key, item.Value);
}
}
public void CancelEdit()
{
_data.Clear();
foreach (var item in _cache)
{
_data.Add(item.Key, item.Value);
}
_cache.Clear();
}
public void EndEdit()
{
_cache.Clear();
}
private Dictionary<string, object> _cache = new Dictionary<string, object>();
private Dictionary<string, object> _data = new Dictionary<string, object>();
public object this[string index]
{
get
{
return _data[index];
}
set
{
_data[index] = value;
OnPropertyChanged("Data");
}
}
public object Data
{
get { return this; }
set
{
PropertyValueChange setter = value as PropertyValueChange;
_data[setter.PropertyName] = setter.Value;
}
}
public event PropertyChangedEventHandler PropertyChanged;
protected void OnPropertyChanged(string property)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(property));
}
}
}
我想問題是我添加一個堆棧面板,然後文本框的堆棧面板...這似乎東西的按鈕。 無論如何動態添加控件沒有堆棧面板? – 2010-03-23 04:03:07