[转]用反射来处理多字段提交

遍历获取控件上的值#region 遍历获取控件上的值
    /**//// 字符串首字母大写
    /// </summary>
    private static string ToProperCase(string s)
    {
        string revised = "";
        if (s.Length > 0)
        {
            revised = s.Trim();
            revised = revised.Substring(0, 1).ToUpper() + revised.Substring(1).ToLower();
        }
        return revised;
    }

    /**//// <summary>
    /// 设置对象属性的值
    /// </summary>
    private static void SetProperty(object obj, string name, object value)
    {
        PropertyInfo propertyInfo = obj.GetType().GetProperty(name);
        object objValue = Convert.ChangeType(value, propertyInfo.PropertyType);
        propertyInfo.SetValue(obj, objValue, null);
    }

    /**//// <summary>
    /// 获取对象属性的值
    /// </summary>
    private static object GetProperty(object obj, string name)
    {
        PropertyInfo propertyInfo = obj.GetType().GetProperty(name);
        return propertyInfo.GetValue(obj, null);
    }




    /**//// <summary>
    /// 设置控件的值
    /// </summary>
    public static void SetControlValue(Control panel, string str, object obj)
    {
        foreach (Control content in panel.Controls)
        {
            if (content.ID != null)
            {
                string contentID = content.ID.ToLower();
                if (contentID.Replace(str, "") != contentID.ToLower())
                {
                    if (content.GetType() != typeof(DropDownList))
                    {
                        SetProperty(content, "Text", GetProperty(obj, ToProperCase(contentID.Replace(str, ""))));
                    }
                    else
                    {
                        DropDownList ddl = (DropDownList)content;
                        ddl.SelectedIndex = -1;
                        ddl.Items.FindByValue(
                            (string)GetProperty(obj, ToProperCase(contentID.Replace(str, "")))
                            ).Selected = true;
                    }
                }
            }
        }
    }


    /**//// <summary>
    /// 设置对象的值
    /// </summary>
    public static  void SetObjectValue(Control panel, string str, ref object obj)
    {
        foreach (Control content in panel.Controls)
        {
            //if (content.Controls.Count > 0)   //将控件都放在了一个Panel里面所以就不用这句了
            //{
            //    SetObjectValue(content, str, obj);
            //}
            if (content.ID != null)
            {
                string contentID = content.ID.ToLower();
                if (contentID.Replace(str, "") != contentID.ToLower())
                {
                    SetProperty(obj, ToProperCase(contentID.Replace(str, "")),
                                                   GetProperty(content, "Text")
                                               );
                }
            }
        }
    }
    #endregion

测试用的类#region 测试用的类
public class TestClass
{
    public TestClass()
    {
        _aa = "1";
        _bb = "2";
        _cc = "3";
        _dd = 4;
        _ee = 5;
        _ff = DateTime.Now;
        _gg = 7;
    }

    private string _aa;

    public string Aa
    {
        get { return _aa; }
        set { _aa = value; }
    }
    private string _bb;

    public string Bb
    {
        get { return _bb; }
        set { _bb = value; }
    }
    private string _cc;

    public string Cc
    {
        get { return _cc; }
        set { _cc = value; }
    }
    private int _dd;

    public int Dd
    {
        get { return _dd; }
        set { _dd = value; }
    }
    private int _ee;

    public int Ee
    {
        get { return _ee; }
        set { _ee = value; }
    }
    private DateTime _ff;

    public DateTime Ff
    {
        get { return _ff; }
        set { _ff = value; }
    }
    private decimal _gg;

    public decimal Gg
    {
        get { return _gg; }
        set { _gg = value; }
    }

}
#endregion

<asp:Panel ID="Panel1" runat="server" Height="150px" Width="181px">
            AA:<asp:TextBox ID="txt_aa" runat="server"></asp:TextBox><br />
            BB:<asp:TextBox ID="txt_bb" runat="server"></asp:TextBox><br />
            CC:<asp:DropDownList ID="txt_cc" runat="server">
                <asp:ListItem>1</asp:ListItem>
                <asp:ListItem>2</asp:ListItem>
                <asp:ListItem>3</asp:ListItem>
                <asp:ListItem>4</asp:ListItem>
                <asp:ListItem>5</asp:ListItem>
                <asp:ListItem>6</asp:ListItem>
                <asp:ListItem>7</asp:ListItem>
        </asp:DropDownList><br />
            DD:<asp:TextBox ID="txt_dd" runat="server"></asp:TextBox><br />
            EE:<asp:TextBox ID="txt_ee" runat="server"></asp:TextBox><br />
            FF:<asp:TextBox ID="txt_ff" runat="server"></asp:TextBox><br />
            GG:<asp:TextBox ID="txt_gg" runat="server"></asp:TextBox>
        </asp:Panel>
        <br />
        <asp:Button ID="Button1" runat="server" Text="保存" OnClick="Button1_Click" />&nbsp;<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="获取"/>

protected void Button1_Click(object sender, EventArgs e)
    {
        object test = new TestClass();
        WebUtility.SetObjectValue(this.Panel1, "txt_", ref test);
        
        Response.Write( ((TestClass)test).Aa );
    }