private void ThePathNow_TextChanged(object sender, TextChangedEventArgs e)
{
if (thePathNow.Text == "")
{
SuggestionPopup.IsOpen = false;
}
else if (SelectedNode != null && thePathNow.Text == SelectedNode.FullPath) //屏蔽刚扫描完和点击树节点时
{
SuggestionPopup.IsOpen = false;
}
else
{
List <SuggestItems> SuggestItemsList = new List <SuggestItems>();
string FrontPath = "";
string BackName = "";
for (int p = thePathNow.Text.Length - 1; p > 0; p--)
{
if (thePathNow.Text[p] == '\\')
{
FrontPath = thePathNow.Text.Substring(0, p);
BackName = thePathNow.Text.Substring(p + 1);
break;
}
}
if (FrontPath != "")
{
DirectoryInfo dire = new DirectoryInfo(FrontPath);
foreach (DirectoryInfo folder in dire.GetDirectories())
{
int i;
for (i = 0; i < BackName.Length && i < folder.Name.Length; i++)
{
if (BackName[i] != folder.Name[i])
{
break;
}
}
if (i < BackName.Length)
{
continue;
}
SuggestItems item = new SuggestItems(folder.FullName);
SuggestItemsList.Add(item);
}
SuggestItemsListBox.ItemsSource = SuggestItemsList;
}
SuggestionPopup.IsOpen = (SuggestItemsList.Count > 0) ? true : false;
}
}
private async void UpdateProductSuggestions(string inputText)
{
if (string.IsNullOrEmpty(inputText) ||
inputText.Length < 2)
{
return;
}
await DispatcherHelper.ExecuteOnUIThreadAsync(
async() =>
{
SuggestItems.Clear();
var suggestions = await _contosoRepository.Products.GetAsync(inputText);
foreach (var product in suggestions)
{
SuggestItems.Add(product);
}
});
}
