在ListView中顯示隊列中的用戶定義數據

Question

我想在列表視圖中顯示數據，存儲在Queue數據和數據類型是用戶定義的類型（包括兩個字符串和一個int類型）。

在入隊和出隊的每個過程之后，如何顯示內部數據，命令行和語法是什么？

Queue<Customer> aCustomerQueue =new Queue<Customer>();// its the queue

class Customer// its the user defined type variable class
{
    public string name;
    public string complain;
    public int serialNo;

}

存儲的數據將由用戶輸入。

Answer 1

您可以嘗試此代碼。

    int count;
    Queue<Customer> customers = new Queue<Customer>();
    ListViewItem item;
    private void enqueueButton_Click(object sender, EventArgs e)
    {
        Customer customer = new Customer();
        count++;
        customer.serialNo += count;
        customer.name = nameTextBox.Text;
        customer.complain = complainTextBox.Text;
        customers.Enqueue(customer);


        foreach (Customer custm in customers)
        {
            item = new ListViewItem(custm.serialNo.ToString());
            item.SubItems.Add(custm.name);
            item.SubItems.Add(custm.complain);

        }
        customerQueueListView.Items.Add(item);            
    }

出隊

    private void dequeueButton_Click(object sender, EventArgs e)
    {
        if (customers.Count != 0)
        {
            customers.Dequeue();
            customerQueueListView.Items[0].Remove();
        }
    }

Answer 2

看一看綁定到隊列字符串ui-never-updates 。

提議的實現是一個很好的方法（從鏈接的問題中獲取代碼）：

public class ObservableQueue<T> : INotifyCollectionChanged, IEnumerable<T>
{
    public event NotifyCollectionChangedEventHandler CollectionChanged;
    private readonly Queue<T> queue = new Queue<T>();

    public void Enqueue(T item)
    {
        queue.Enqueue(item);
        if (CollectionChanged != null)
            CollectionChanged(this, 
                new NotifyCollectionChangedEventArgs(
                    NotifyCollectionChangedAction.Add, item));
    }

    public T Dequeue()
    {
        var item = queue.Dequeue();
        if (CollectionChanged != null)
            CollectionChanged(this, 
                new NotifyCollectionChangedEventArgs(
                    NotifyCollectionChangedAction.Remove, item));
        return item;
    }

    public IEnumerator<T> GetEnumerator()
    {
        return queue.GetEnumerator();
    }

    IEnumerator IEnumerable.GetEnumerator()
    {
        return GetEnumerator();
    }
}