如何避免databind文本框的默认零值? [英] How to avoid default zero value of a databind textbox ?

问题描述

我的应用程序中有一个类.它已绑定到winform文本框控件.但是绑定到BookingNo属性的文本框始终显示零(0).但是我希望文本框保持空白.有什么办法吗?这是我的代码段.

I have the a class in my application. It has been bound to winform textbox controls. But the textbox which is bound to BookingNo property, always shows zero (0). But i want the textbox keep empty. Is there any way to do it? Here is my code snippet.

public class Booking 
    {
    private int pBookingNo;
    private string pCustomerName;
    private string pAddress;

    public int BookingNo
    {
        get { return pBookingNo; }
        set
        {
            if (!value.Equals(pBookingNo))
            {
                pBookingNo = value;
            }
        }
    }

    public string CustomerName
    {
        get { return pCustomerName; }
        set
        {
            if (!value.Equals(pCustomerName))
            {
                pCustomerName = value;

            }
        }
    }

    public Booking() { }
}


    public partial class Form1 : Form
    {
    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        AddDataBindings();
    }

    private void AddDataBindings()
    {
        bsBooking.DataSource = typeof(Booking);

        txtBookingNo.DataBindings.Add("Text", bsBooking, "BookingNo", true, DataSourceUpdateMode.OnPropertyChanged, null, "G", GlobalVariables.CurrentCultureInfo);
        txtCustomerName.DataBindings.Add("Text", bsBooking, "CustomerName");

    }
}

推荐答案

我得到了解决方案-

I got the solution-

public int? BookingNo { get; set; }

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