读使用反射将业务对象绑定到 ASP.NET 窗体控件有感(二）

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看完pethsop4中的web/controls/Addressform.ascx之后，才发现对这篇文章理解有误，其实可以用控件来完成表单，而这个控件跟一个实体类一般是一对一，且属性相同，所有可以把这个实体类作为控件的属性，把控件的输入的控件的内容就等于这个实体类的属性。Addressform.ascx.cs代码如下：

using PetShop.Model;
using System.Text.RegularExpressions;

namespace PetShop.Web {

    public partial class AddressForm : System.Web.UI.UserControl {

        /// <summary>
        /// Control property to set or get the address
        /// </summary>
        public AddressInfo Address {
            get {

                // Return null if control is empty
                if (string.IsNullOrEmpty(txtFirstName.Text) &&
                   string.IsNullOrEmpty(txtLastName.Text) &&
                   string.IsNullOrEmpty(txtAddress1.Text) &&
                   string.IsNullOrEmpty(txtAddress2.Text) &&
                   string.IsNullOrEmpty(txtCity.Text) &&
                   string.IsNullOrEmpty(txtZip.Text) &&
                   string.IsNullOrEmpty(txtEmail.Text) &&
                   string.IsNullOrEmpty(txtPhone.Text))
                    return null;

                // Make sure we clean the input
                string firstName = WebUtility.InputText(txtFirstName.Text, 50);
                string lastName = WebUtility.InputText(txtLastName.Text, 50);
                string address1 = WebUtility.InputText(txtAddress1.Text, 50);
                string address2 = WebUtility.InputText(txtAddress2.Text, 50);
                string city = WebUtility.InputText(txtCity.Text, 50);
                string zip = WebUtility.InputText(txtZip.Text, 10);
                string phone = WebUtility.InputText(WebUtility.CleanNonWord(txtPhone.Text), 10);
                string email = WebUtility.InputText(txtEmail.Text, 80);
                string state = WebUtility.InputText(listState.SelectedItem.Value, 2);
                string country = WebUtility.InputText(listCountry.SelectedItem.Value, 50);

                return new AddressInfo(firstName, lastName, address1, address2, city, state, zip, country, phone, email);
            }
            set {
                if(value != null) {
                    if(!string.IsNullOrEmpty(value.FirstName))
                        txtFirstName.Text = value.FirstName;
                    if(!string.IsNullOrEmpty(value.LastName))
                        txtLastName.Text = value.LastName;
                    if(!string.IsNullOrEmpty(value.Address1))
                        txtAddress1.Text = value.Address1;
                    if(!string.IsNullOrEmpty(value.Address2))
                        txtAddress2.Text = value.Address2;
                    if(!string.IsNullOrEmpty(value.City))
                        txtCity.Text = value.City;
                    if(!string.IsNullOrEmpty(value.Zip))
                        txtZip.Text = value.Zip;
                    if(!string.IsNullOrEmpty(value.Phone))
                        txtPhone.Text = value.Phone;
                    if(!string.IsNullOrEmpty(value.Email))
                        txtEmail.Text = value.Email;
                    if(!string.IsNullOrEmpty(value.State)) {
                        listState.ClearSelection();
                        listState.SelectedValue = value.State;
                    }
                    if(!string.IsNullOrEmpty(value.Country)) {
                        listCountry.ClearSelection();
                        listCountry.SelectedValue = value.Country;
                    }
                }
            }
        }

    }
}

参考：

1.运用反射给实体赋值：http://dotnet.e800.com.cn/articles/2007/11/1167639881603150378_1.html

2.面向对象开发中的数据控件绑定方案：http://www.cchensoft.com/Articles/ArticleDetails.aspx?id=fzp2nm