问题描述
我有一个：
<controls:DataGrid>
在C＃中进行的UWP开发中的XAML页面中，该信息会更新Web服务的价格。
通过ObservableCollection，单元格会自动更新价格。
我希望该单元格在值更新时闪烁。
我不知道如何通过ObservableCollection元素获取GridView的最新更新单元，以及以编程方式对其进行更新时引发的哪个事件。
XAML部分：
<controls:DataGrid x:Name="dgBalances" Height="600" Margin="12" AutoGenerateColumns="True" ItemsSource="{x:Bind Info.Balances }" Grid.Row="4" Grid.Column="0" AlternatingRowBackground="SlateGray" RowBackground="DimGray"/>
功能部分：
private async Task UpdateBalancesServiceAsync(ObservableCollection<AssetBalance> balances,MyWebservice client)
{
//Run like service updating the observablecollection
while (true)
{
// Get All Balances
var ret = await client.GetBalancesAsync();
if (ret.Success)
{
foreach (var returnedbalance in ret.Data)
{
if (balances.FirstOrDefault(x => x.Currency.Equals(returnedbalance.Currency)) != null)
{
// If Balance exists and the Value needs update.
if (balances.FirstOrDefault(x => x.Currency.Equals(returnedbalance.Currency)).Value != returnedbalance.Total)
{
_ = CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal,() =>
{
balances.FirstOrDefault(x => x.Currency.Equals(returnedbalance.Currency)).Value = returnedbalance.Total;
balances.FirstOrDefault(x => x.Currency.Equals(returnedbalance.Currency)).LastUpdate = DateTime.Now;
});
}
else
{
// If Balance exists and the Value doesn't need update,just show the time last checked.
_ = CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal,() =>
{
balances.FirstOrDefault(x => x.Currency.Equals(returnedbalance.Currency)).LastUpdate = DateTime.Now;
});
}
}
else
{
// If Balance does not exists it will create the new one.
_ = CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal,() =>
{
balances.Add(new AssetBalance()
{
LastUpdate = DateTime.Now,Currency = returnedbalance.Currency,Value = returnedbalance.Total
});
});
}
}
}
Thread.Sleep(10000);
}
}
解决方法
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