写了个用一个文件定义样式的DataGrid

支持样式类型为字符串或整型的设置，颜色设置暂不支持，不过这可以通过设置一个cssClass解决。
使用时只要设置下设置ConfigFile文件路径即可。
第一次写自定义控件，有些还需改进。
enhancedatagrid.cs

using System;
using System.Reflection;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using System.Collections;
using System.Collections.Specialized;

namespace YOYOSOFT.Framework.Web.UI.Controls
{
    /**//// <summary>
    /// EnhanceDataGrid 的摘要说明。
    /// </summary>
    [ToolboxData("<{0}:EnhanceDataGrid runat=server></{0}:EnhanceDataGrid>")]
    public class EnhanceDataGrid : System.Web.UI.WebControls.DataGrid
    {
        [Bindable(true),
            Category("Appearance"),
            DefaultValue("")]
        public string ConfigFile
        {
            get{return _configFile.Trim();}
            set{_configFile = value;}
        }string _configFile = string.Empty;

        protected override void OnPreRender(EventArgs e)
        {
            if(this.ConfigFile.Length != 0)
            {
                string filePath = System.Web.HttpContext.Current.Server.MapPath(this.ConfigFile);
                NameValueCollection values = Globals.GetNameValues(filePath);
                SetStyle(values);
            }    
            base.OnPreRender (e);
        }

        private void SetStyle(NameValueCollection values)
        {
            if(values == null) return;

            string typeName;
            Type t = base.GetType();
            string[] types;
            for(int i=0; i<values.Count; i++)
            {
                typeName = values.Keys[i];
                types = typeName.Split('.');
                PropertyInfo parentInfo = t.GetProperty(types[0]);
                if(parentInfo == null) continue; 
                
                if(types.Length >= 2)
                {
                    PropertyInfo childInfo = parentInfo.PropertyType.GetProperty(types[1]);
                    SetPropertyValue(childInfo,
                        parentInfo.GetValue(this,null),values[i]);
                }
                else
                {
                    SetPropertyValue(parentInfo,this,values[i]);
                }
            }
        }
        /**//// <summary>
        /// 设置属性值
        /// </summary>
        /// <param name="p">要赋值的属性</param>
        /// <param name="obj">属性所在对象</param>
        /// <param name="val">属性值</param>
        private void SetPropertyValue(PropertyInfo p,object obj,string val)
        {
            if(p != null && 
                (p.PropertyType == typeof(int) || 
                p.PropertyType == typeof(string)))
            {
                if(Globals.IsInt(val))
                    p.SetValue(obj,int.Parse(val),null);
                else
                    p.SetValue(obj,val,null);
            }
        }
    }
}

globals.cs:

using System;
using System.Collections;
using System.Collections.Specialized;
using System.Resources;
using System.Xml;
using System.Web;
using System.Text.RegularExpressions;
using System.Web.Caching;

namespace YOYOSoft.Framework.Web.UI.Controls
{
    /**//// <summary>
    /// 定义本应用程序全局设置
    /// </summary>
    internal class Globals
    {
        public Globals(){}
        /**//// <summary>
        /// 取得全局配置文件中的名称键值对
        /// </summary>
        /// <returns></returns>
        public static NameValueCollection GetNameValues(string filePath)
        {
            HttpContext context = HttpContext.Current;
            NameValueCollection values;
            string cacheKey = "Cache-ConfigFile-" + filePath;
            if(context.Cache[cacheKey] == null)
            {
                CacheDependency dp = new CacheDependency(filePath);
                values = new NameValueCollection();

                XmlDocument xml = new XmlDocument();
                try
                {
                    xml.Load(filePath);
                }
                catch
                {
                    return null;
                }
                XmlNodeList nodes = xml.SelectSingleNode("root").ChildNodes;

                
                foreach(XmlNode node in nodes)
                {
                    if(node.NodeType != XmlNodeType.Comment) 
                    {
                        values.Add(node.Attributes["name"].Value, 
                            node.Attributes["value"].Value);
                    }
                }

                context.Cache.Insert(cacheKey,values,dp,
                    DateTime.MaxValue,TimeSpan.Zero);
            }
            return (NameValueCollection)context.Cache[cacheKey];
        }
        /**//// <summary>
        /// 判断是否为整型
        /// </summary>
        /// <param name="input">要判断的字符串</param>
        /// <returns></returns>
        public static bool IsInt(string input)
        {
            string regexString = @"^[\d]+$";

            return Regex.IsMatch(input, regexString);
        }

    }
}

XML配置文件：

<?xml version="1.0" encoding="utf-8"?>
<root>
    <!-- General -->
    <resource name="HeaderStyle.CssClass" value="grdHeaderStyle" comment="" />
    <resource name="EditItemStyle.CssClass" value="grdEditItemStyle">
    </resource>
    <resource name="AlternatingItemStyle.CssClass" value="grdAlternatingItemStyle">
    </resource>
    <resource name="ItemStyle.CssClass" value="grdItemStyle">
    </resource>
    <resource name="FooterStyle.CssClass" value="grdFooterStyle">
    </resource>
    <resource name="PagerStyle.CssClass" value="grdPagerStyle" comment="">
    </resource>
    <resource name="CssClass" value="grdGlobalStyle" comment="DataGrid">
    </resource>
    <resource name="CellPadding" value="4">
    </resource>
    <resource name="CellSpacing" value="0">
    </resource>
</root>