CODEWITHSUNDEEP
c#wpf
Gre3n
Gre3n

Reputation: 156

Naming items by yourself (c#)

What I am trying to make: I want to click on a button that lets me name my item. The item is then added to the listview.

So far the only way I can add an item is if I directly name it in the code. Here is my code so far:

private void button_add(object sender, RoutedEventArgs e)
    {
        ListViewItem item = new ListViewItem();
        item.Content = "randommmmm";
        list1.Items.Add(item);
    }

Upvotes: 0

Views: 61

Answers (2)

mm8
mm8

Reputation: 169320

Here is a very basic example that should give you the idea.

MainWindow.xaml.cs:

public partial class MainWindow: Window
{
    public MainWindow()
    {
        InitializeComponent();
    }

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        popup.IsOpen = true;
    }

    private void txt_PreviewKeyDown(object sender, KeyEventArgs e)
    {
        if(e.Key == Key.Enter)
        {
            list1.Items.Add(txt.Text);
            txt.Text = string.Empty;
            popup.IsOpen = false;
        }
    }
}

MainWindow.xaml:

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApplication1"
        mc:Ignorable="d"
        Title="Window6" Height="300" Width="300">
    <StackPanel>

        <ListView x:Name="list1" />

        <Popup x:Name="popup" Width="300" PlacementTarget="{Binding ElementName=btn}">
            <Border Background="White" BorderBrush="AliceBlue" BorderThickness="2">
                <TextBox x:Name="txt" Margin="10" PreviewKeyDown="txt_PreviewKeyDown" />
            </Border>
        </Popup>

        <Button x:Name="btn" Content="Add" Click="Button_Click" />

    </StackPanel>
</Window>

Clicking on the Button displays a Popup with a TextBox and when you press [Enter] the text in the TextBox is added to the ListView.

If you are serious about WPF and XAML I really recommend you to learn the MVVM design pattern but that's another story :)

Upvotes: 1

S. Spindler
S. Spindler

Reputation: 546

You can bind a TextBox to a property in your view model.

<TextBox Text="{Binding ItemName}" /> 

private string itemName;
public string ItemName 
{ 
    get { return itemName; } 
    set 
    {
        if (value == null || value == itemName) return;            

        itemName = value;
        NotifyOnPropertyChanged(nameof(ItemName));
    } 
}

So you can use ItemName to create your item.

item.Content = ItemName;

Upvotes: 1

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