Updating ListView from Deserializing object
2
I have a WPF application where I can add persons. They'll show up in a listview. Every time I add someone they appear. However, if I try too load a file the view will not refresh.
Persons = new List<Person>();
UsersListView.ItemsSource = Persons;
View = (CollectionView)CollectionViewSource.GetDefaultView(UsersListView.ItemsSource);
if (File.Exists("Persons.bin"))
{
Persons = (List<Person>) Utils.Deserialize("Persons.bin");
// The Persons list gets populated however, it doesn't show up in my view.
View.Refresh();
}
private void AddPersonButton_Click(object sender, RoutedEventArgs e)
{
if (ValidateInfo())
{
Person person = new Person(FirstNameTextBox.Text, LastNameTextBox.Text, Convert.ToInt32(AgeTextBox.Text));
View.Refresh();
Utils.Serialize(Persons, "Persons.bin");
}
}
When I add a person via the button they view will refresh and they appear, but when I close and open the application the persons will not show up ever if my Persons list is populated.
c# wpf
edited Dec 27 '18 at 16:43
marc_s
570k12811031251
asked Dec 27 '18 at 15:58
William Persson
183
New contributor
William Persson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
2
I have a WPF application where I can add persons. They'll show up in a listview. Every time I add someone they appear. However, if I try too load a file the view will not refresh.
Persons = new List<Person>();
UsersListView.ItemsSource = Persons;
View = (CollectionView)CollectionViewSource.GetDefaultView(UsersListView.ItemsSource);
if (File.Exists("Persons.bin"))
{
Persons = (List<Person>) Utils.Deserialize("Persons.bin");
// The Persons list gets populated however, it doesn't show up in my view.
View.Refresh();
}
private void AddPersonButton_Click(object sender, RoutedEventArgs e)
{
if (ValidateInfo())
{
Person person = new Person(FirstNameTextBox.Text, LastNameTextBox.Text, Convert.ToInt32(AgeTextBox.Text));
View.Refresh();
Utils.Serialize(Persons, "Persons.bin");
}
}
When I add a person via the button they view will refresh and they appear, but when I close and open the application the persons will not show up ever if my Persons list is populated.
c# wpf
edited Dec 27 '18 at 16:43
marc_s
570k12811031251
asked Dec 27 '18 at 15:58
William Persson
183
New contributor
William Persson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Re-set theItemsSource:UsersListView.ItemsSource = (List<Person>) Utils.Deserialize("Persons.bin");
– mm8
Dec 27 '18 at 16:00
Oh, that makes sense, because if the file exists I dont set the ItemsSource. So there is nothing to Refresh
– William Persson
Dec 27 '18 at 16:02
add a comment |
2
2
2
I have a WPF application where I can add persons. They'll show up in a listview. Every time I add someone they appear. However, if I try too load a file the view will not refresh.
Persons = new List<Person>();
UsersListView.ItemsSource = Persons;
View = (CollectionView)CollectionViewSource.GetDefaultView(UsersListView.ItemsSource);
if (File.Exists("Persons.bin"))
{
Persons = (List<Person>) Utils.Deserialize("Persons.bin");
// The Persons list gets populated however, it doesn't show up in my view.
View.Refresh();
}
private void AddPersonButton_Click(object sender, RoutedEventArgs e)
{
if (ValidateInfo())
{
Person person = new Person(FirstNameTextBox.Text, LastNameTextBox.Text, Convert.ToInt32(AgeTextBox.Text));
View.Refresh();
Utils.Serialize(Persons, "Persons.bin");
}
}
When I add a person via the button they view will refresh and they appear, but when I close and open the application the persons will not show up ever if my Persons list is populated.
c# wpf
edited Dec 27 '18 at 16:43
marc_s
570k12811031251
asked Dec 27 '18 at 15:58
William Persson
183
New contributor
William Persson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I have a WPF application where I can add persons. They'll show up in a listview. Every time I add someone they appear. However, if I try too load a file the view will not refresh.
Persons = new List<Person>();
UsersListView.ItemsSource = Persons;
View = (CollectionView)CollectionViewSource.GetDefaultView(UsersListView.ItemsSource);
if (File.Exists("Persons.bin"))
{
Persons = (List<Person>) Utils.Deserialize("Persons.bin");
// The Persons list gets populated however, it doesn't show up in my view.
View.Refresh();
}
private void AddPersonButton_Click(object sender, RoutedEventArgs e)
{
if (ValidateInfo())
{
Person person = new Person(FirstNameTextBox.Text, LastNameTextBox.Text, Convert.ToInt32(AgeTextBox.Text));
View.Refresh();
Utils.Serialize(Persons, "Persons.bin");
}
}
When I add a person via the button they view will refresh and they appear, but when I close and open the application the persons will not show up ever if my Persons list is populated.
c# wpf
c# wpf
edited Dec 27 '18 at 16:43
marc_s
570k12811031251
asked Dec 27 '18 at 15:58
William Persson
183
New contributor
William Persson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited Dec 27 '18 at 16:43
marc_s
570k12811031251
asked Dec 27 '18 at 15:58
William Persson
183
New contributor
William Persson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited Dec 27 '18 at 16:43
marc_s
570k12811031251
edited Dec 27 '18 at 16:43
marc_s
570k12811031251
edited Dec 27 '18 at 16:43
marc_s
570k12811031251
570k12811031251
asked Dec 27 '18 at 15:58
William Persson
183
New contributor
William Persson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Dec 27 '18 at 15:58
William Persson
183
asked Dec 27 '18 at 15:58
William Persson
183
183
New contributor
William Persson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
William Persson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
William Persson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Re-set theItemsSource:UsersListView.ItemsSource = (List<Person>) Utils.Deserialize("Persons.bin");
– mm8
Dec 27 '18 at 16:00
Oh, that makes sense, because if the file exists I dont set the ItemsSource. So there is nothing to Refresh
– William Persson
Dec 27 '18 at 16:02
add a comment |
Re-set theItemsSource:UsersListView.ItemsSource = (List<Person>) Utils.Deserialize("Persons.bin");
– mm8
Dec 27 '18 at 16:00
Oh, that makes sense, because if the file exists I dont set the ItemsSource. So there is nothing to Refresh
– William Persson
Dec 27 '18 at 16:02
Re-set the
ItemsSource: UsersListView.ItemsSource = (List<Person>) Utils.Deserialize("Persons.bin");– mm8
Dec 27 '18 at 16:00
Re-set the
ItemsSource: UsersListView.ItemsSource = (List<Person>) Utils.Deserialize("Persons.bin");– mm8
Dec 27 '18 at 16:00
Oh, that makes sense, because if the file exists I dont set the ItemsSource. So there is nothing to Refresh
– William Persson
Dec 27 '18 at 16:02
Oh, that makes sense, because if the file exists I dont set the ItemsSource. So there is nothing to Refresh
– William Persson
Dec 27 '18 at 16:02
add a comment |
1 Answer
1
active
oldest
votes
1
You should set the ItemsSource property to the new deserialized collection:
if (File.Exists("Persons.bin"))
{
Persons = (List<Person>) Utils.Deserialize("Persons.bin");
UsersListView.ItemsSource = Persons;
}
You may also want to look into data binding: https://docs.microsoft.com/en-us/dotnet/framework/wpf/data/data-binding-wpf
answered Dec 27 '18 at 16:02
mm8
81.4k81831
I'll accept the right answear as soon as I can. Notcied how ever, when I load the file it won't refresh my view with a new entry .
– William Persson
Dec 27 '18 at 16:05
That's because you don't serialize the new entry and save it to the file. But that's another story really.
– mm8
Dec 27 '18 at 16:07
add a comment |
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You should set the ItemsSource property to the new deserialized collection:
if (File.Exists("Persons.bin"))
{
Persons = (List<Person>) Utils.Deserialize("Persons.bin");
UsersListView.ItemsSource = Persons;
}
You may also want to look into data binding: https://docs.microsoft.com/en-us/dotnet/framework/wpf/data/data-binding-wpf
answered Dec 27 '18 at 16:02
mm8
81.4k81831
I'll accept the right answear as soon as I can. Notcied how ever, when I load the file it won't refresh my view with a new entry .
– William Persson
Dec 27 '18 at 16:05
That's because you don't serialize the new entry and save it to the file. But that's another story really.
– mm8
Dec 27 '18 at 16:07
add a comment |
1
You should set the ItemsSource property to the new deserialized collection:
if (File.Exists("Persons.bin"))
{
Persons = (List<Person>) Utils.Deserialize("Persons.bin");
UsersListView.ItemsSource = Persons;
}
You may also want to look into data binding: https://docs.microsoft.com/en-us/dotnet/framework/wpf/data/data-binding-wpf
answered Dec 27 '18 at 16:02
mm8
81.4k81831
I'll accept the right answear as soon as I can. Notcied how ever, when I load the file it won't refresh my view with a new entry .
– William Persson
Dec 27 '18 at 16:05
That's because you don't serialize the new entry and save it to the file. But that's another story really.
– mm8
Dec 27 '18 at 16:07
add a comment |
1
1
1
You should set the ItemsSource property to the new deserialized collection:
if (File.Exists("Persons.bin"))
{
Persons = (List<Person>) Utils.Deserialize("Persons.bin");
UsersListView.ItemsSource = Persons;
}
You may also want to look into data binding: https://docs.microsoft.com/en-us/dotnet/framework/wpf/data/data-binding-wpf
answered Dec 27 '18 at 16:02
mm8
81.4k81831
You should set the ItemsSource property to the new deserialized collection:
if (File.Exists("Persons.bin"))
{
Persons = (List<Person>) Utils.Deserialize("Persons.bin");
UsersListView.ItemsSource = Persons;
}
You may also want to look into data binding: https://docs.microsoft.com/en-us/dotnet/framework/wpf/data/data-binding-wpf
answered Dec 27 '18 at 16:02
mm8
81.4k81831
answered Dec 27 '18 at 16:02
mm8
81.4k81831
answered Dec 27 '18 at 16:02
mm8
81.4k81831
answered Dec 27 '18 at 16:02
mm8
81.4k81831
81.4k81831
I'll accept the right answear as soon as I can. Notcied how ever, when I load the file it won't refresh my view with a new entry .
– William Persson
Dec 27 '18 at 16:05
That's because you don't serialize the new entry and save it to the file. But that's another story really.
– mm8
Dec 27 '18 at 16:07
add a comment |
I'll accept the right answear as soon as I can. Notcied how ever, when I load the file it won't refresh my view with a new entry .
– William Persson
Dec 27 '18 at 16:05
That's because you don't serialize the new entry and save it to the file. But that's another story really.
– mm8
Dec 27 '18 at 16:07
I'll accept the right answear as soon as I can. Notcied how ever, when I load the file it won't refresh my view with a new entry .
– William Persson
Dec 27 '18 at 16:05
I'll accept the right answear as soon as I can. Notcied how ever, when I load the file it won't refresh my view with a new entry .
– William Persson
Dec 27 '18 at 16:05
That's because you don't serialize the new entry and save it to the file. But that's another story really.
– mm8
Dec 27 '18 at 16:07
That's because you don't serialize the new entry and save it to the file. But that's another story really.
– mm8
Dec 27 '18 at 16:07
add a comment |
William Persson is a new contributor. Be nice, and check out our Code of Conduct.
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Re-set the
ItemsSource:UsersListView.ItemsSource = (List<Person>) Utils.Deserialize("Persons.bin");– mm8
Dec 27 '18 at 16:00
Oh, that makes sense, because if the file exists I dont set the ItemsSource. So there is nothing to Refresh
– William Persson
Dec 27 '18 at 16:02