How To Get ObservableCollection Strings in ContextAction Menu Item Click Event For Listview Xamarin.forms

SimonGhost 256 Reputation points
2020-12-21T20:29:03.4+00:00

Hello Everyone i Have A List View With Label Have Binding Data and My List View Have Context Action inside ViewCell and I Want Get current binding for (Name) String When ContextAction Menu Item Click Event.
My Code:

 ObservableCollection<Employee> employees = new ObservableCollection<Employee>();
public ObservableCollection<Employee> Employees { get { return employees; } }

//binding string class
public class Employee
{
public string Name { get; set; }
}

 <ListView x:Name="ListView" SelectionMode="None" RowHeight="200">
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <ViewCell Height="300">
                            <ViewCell.ContextActions>
                                <MenuItem IsDestructive="True" Text="Download"  x:Name="DownloadItem" Clicked="DownloadItem_Clicked"></MenuItem>
                                <Label Text="{Binding UserName}" VerticalOptions="Center" HorizontalOptions="Center"/>
                        </ViewCell>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>

//and this menu item click

 private void DownloadItem_Clicked(object sender, EventArgs e)
        {
            //here i want to get The binding data for current item
        }

//also i test this but not working only in listview item click
var Data = e.Item as Employee;
//and get it like this
DisplayAlert("Your Name is ",Data.Name,"Ok");

Thanks :)

Xamarin
Xamarin
A Microsoft open-source app platform for building Android and iOS apps with .NET and C#.
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Accepted answer
  1. JarvanZhang 23,936 Reputation points
    2020-12-22T05:47:32.287+00:00

    Hello,​

    Welcome to our Microsoft Q&A platform!

    You could get the MenuItem via the sender, then get the BindingContext of the menuItem to retrive the data.

    Check the code:

       void OnItemClicked(object sender, EventArgs e)  
       {  
           // The sender is the menuItem  
           MenuItem menuItem = sender as MenuItem;  
           var contextItem = menuItem.BindingContext as Employee;  
         
          DisplayAlert("Your Name is ",contextItem.Name,"Ok");  
       }  
    

    Best Regards,

    Jarvan Zhang


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