CODEWITHSUNDEEP
c#wpflistviewvariables
Joe K
Joe K

Reputation: 241

Capturing the contents of a Listview row as variables

C# WPF I have a list view with 3 columns in it. What I want to happen is when I double click on a row, it will capture the values of the columns for the selected row and store them as variables so I can pass them off to another page or simply manipulate them as needed. What I have here is my practice code. For right now, I am just populating a message box to see if I can get the variables out correctly. What is happening is it is not grabbing anything from the row. I figured this out by removing the if block and saw that string name = selectedObject.ilName; was null. an additional question I have is in regards to the statement ingListLV.SelectedItems[0] as InventoryList the [0], what exactly does that refer to? I initally thought it referred to the values it returned, so [0] would be the value in column 1, [1] would be column 2 etc. but i know that is wrong.

Here is my XAML

<ListView x:Name="ingListLV" HorizontalAlignment="Center" Height="100" Margin="0,145,0,0" VerticalAlignment="Top" Width="Auto"
              IsSynchronizedWithCurrentItem="True" 
              ItemsSource="{Binding}" 
              SelectedValuePath="InventoryName"
              Style="{DynamicResource listViewStyle}" 
              MouseDoubleClick="Open_Edit">
        <ListView.View>
            <GridView>
                <GridViewColumn x:Name="InvName" Width="100" Header="Name" DisplayMemberBinding="{Binding Path=InventoryName}" />
                <GridViewColumn Width="50" Header="Qty" DisplayMemberBinding="{Binding Path=Qty}" />
                <GridViewColumn Width="50" Header="Type" DisplayMemberBinding="{Binding Path=Type}" />
            </GridView>
        </ListView.View>
    </ListView>

and my code behind

    private void Open_Edit(object sender, RoutedEventArgs e)
    {
    var selectedObject = ingListLV.SelectedItems[0] as InventoryList;
    if (selectedObject == null)
    {
        return;
    }
    string name = selectedObject.ilName;
    MessageBox.Show(name);
    }

public class InventoryList
{
    public string ilName { get; set; }
    public decimal ilQty { get; set; }
    public string ilType { get; set; }
}

EDIT Here is where i am loading data in to the listview

    private void LoadLV()
    {

        auroraDataEntities = new AuroraDataEntities();
        ObjectQuery<Inventory> inventories = auroraDataEntities.Inventories;
        //Returns only opjects with a quantity greater than 0, so it won't show anything you are out of
        var fillList = from q in inventories
                       where q.Qty > 0
                       select q;
        ingListLV.ItemsSource = fillList.ToList();
     }

Upvotes: 0

Views: 721

Answers (1)

LPL
LPL

Reputation: 17083

In ListView.SelectionMode Single (which is default) use SelectedItem not SelectedItems.

var selectedObject = ingListLV.SelectedItem as Inventory;

The [0] refers to the first selected item (row) in a multiple selection.

Upvotes: 1

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