>我正在尝试实现一个进度条,这样当我单击搜索按钮时,我需要它弹出。这是我写的,但由于某些原因,它一直出现。任何回复将不胜感激。
以下是我在 xaml 文档中的内容:
<ProgressBar Name="searchProgressBar" IsIndeterminate="True" Width="200" Margin="10,10,0,0" Visibility="{Binding IsSearchbarVisible, UpdateSourceTrigger=PropertyChanged}"/>
这就是我在 VM.cs 类中拥有的内容:
private Visibility isSearchBarVisible = Visibility.Collapsed;
public Visibility IsSearchBarVisible
{
get { return isSearchBarVisible; }
set
{
isSearchBarVisible = value;
OnPropertyChanged("IsSearchBarVisible");
}
}
public ICommand OrderSearch
{
get
{
if (_orderSearch == null)
{
_orderSearch = new RelayCommand(param =>
{
IsSearchBarVisible = Visibility.Visible;
Console.WriteLine(isSearchBarVisible);
int orderID;
if(Int32.TryParse(param.ToString(), out orderID))
ShowMainOrderDetails(orderID);
IsSearchBarVisible = Visibility.Collapsed;
Console.WriteLine(isSearchBarVisible);
});
}
return _orderSearch;
}
}
绑定
是xaml IsSearchbarVisible(b很小)和viewmodel中的问题 IsSearchBarVisible(B是大写字母)
请尝试以下操作:
private ICommand _onOrderSearchClickCommand;
public ICommand OnOrderSearchClickCommand
{
get
{
if (_onOrderSearchClickCommand != null) return _onOrderSearchClickCommand;
_onOrderSearchClickCommand = new RelayCommand(OrderSearchButtonClick);
return _onOrderSearchClickCommand;
}
}
public void OrderSearchClick(object sender)
{
IsSearchBarVisible = Visibility.Visible;
Console.WriteLine(isSearchBarVisible);
int orderID;
if(Int32.TryParse(param.ToString(), out orderID))
ShowMainOrderDetails(orderID);
}
在你的方法的最后 显示主订单详细信息(订单 ID) 最后添加
IsSearchBarVisible = Visibility.Hidden;