C# 读取XML注释

C#可以通过反射读取类的字段/方法等,可是该如何获取该字段的XML注释?

具体目的:有一个实体类,页面需要有一个与其对应的table,样式大体为

      <tr>
                <td>地东经</td>
                <td>
                    <input id='txt_Longitude' type='text' class='form-control' name='Longitude' /></td>
                <td>北纬</td>
                <td>
                    <input id='Latitude' type='text' class='form-control' name='Latitude' /></td>
            </tr>

其实体类,大致为:

     /// <summary>
        /// 东经
        /// </summary>
        public double? Longitude
        {
            get{ return _Longitude; }
            set
            {
                this.OnPropertyValueChange(_.Longitude,_Longitude,value); 
          this._
Longitude=value;
       }
     }

由于实体类中属性很多,生成页面的工作量很大,所以想通过反射的方式,读取实体的XML注释及其属性名称,写个循环即可生成上述页面

后查阅相关资料,XML注释是不写入DLL里的,所以直接通过反射的方式获取XML注释是不可能的.

有建议通过对XML文件进行解析,获取其XML注释的

万能的老外已经处理过类似的问题了,参考这里

其提供了一个处理用的类库以及示例

1.在VS里打开项目属性中的XML文档注释功能

即在项目的bin目录中生成一个以当前项目命名的xml文件,读取该文件,即可获取XML注释

2.按照如下方式,获取XML注释

XmlElement documentation = DocsByReflection.XMLFromMember(typeof(SomeExampleClass).GetProperty("ExampleProperty"));
Console.WriteLine(documentation["summary"].InnerText.Trim());

下载链接:

docsbyreflection_2

通过反射获取字段名称/字段类型/及其XML注释,即可根据需要生成页面HTML,示例如下:

StringBuilder sb = new StringBuilder();
            string rowtemp = "<tr>
" +
                                "<td>{0}</td>
 " +
                                "<td>" +
                                    "<input id = 'txt_{1}' type = 'text' class='form-control' name='{1}' /></td>
" +
                                "<td>{2}</td>
" +
                                "<td>
" +
                                    "<input id = '{3}' type='text' class='form-control' name='{3}' /></td>
" +
                            "</tr>
";
            
            //遍历基本属性,生成表
            PropertyInfo[] ProList = tp1.GetProperties();
            List<string> ignoreList = new List<string>();
            ignoreList.Add("Project_Code");
            bool toEnd = false;

            #region 区分字段类型
            for (int i = 0; i < ProList.Length; )
            {
         //下述循环为了实现对字段的过滤,以及一行两个<td>,所以,需要检索出下一个可用的字段对象,看上去比较绕 while (ignoreList.Contains(ProList[i].Name)) { i++; if (i == ProList.Length) { toEnd = true;
break; } } if (toEnd) { break; } PropertyInfo p1 = ProList[i]; i++; PropertyInfo p2 = null; if (i < ProList.Length) { while (ignoreList.Contains(ProList[i].Name)) { i++; if (i == ProList.Length) { toEnd = true; break; } } } if (toEnd || i == ProList.Length) { } else { p2 = ProList[i]; i++; } sb.AppendLine("<tr>"); if (p2 != null) { string str1 = getHTML(tp1, p1); string str2 = getHTML(tp1, p2); sb.AppendLine(str1); sb.AppendLine(str2); } else { string str1 = getHTML(tp1, p1); sb.AppendLine(str1); } sb.AppendLine("</tr>"); } #endregion write2Text(@"C:STD"+tp1.Name+".txt", sb); Console.WriteLine("结束"); Console.ReadLine();
public static string getCommentText(Type tp1,string nm)
        {
            Console.WriteLine(nm);
            XmlElement documentation = DocsByReflection.XMLFromMember(tp1.GetProperty(nm));
            Console.WriteLine(documentation["summary"].InnerText.Trim());
            return documentation["summary"].InnerText.Trim();
        }

        public static void write2Text(string filename, StringBuilder sb)
        {
            using (FileStream fs = new FileStream(filename, FileMode.OpenOrCreate))
            {
                using (StreamWriter sw = new StreamWriter(fs))
                {
                    sw.Write(sb.ToString());
                    sw.Flush();
                }
            }
        }

        public static string getHTML(Type tp1,PropertyInfo p)
        {
            if (p.Name.Trim() == "Conveyance_Tunnel_Import_Elevation")
                Console.WriteLine("");
            string inputTD = "<td>{0}</td>
 " +
                                "<td>
" +
                                    "<input id = 'txt_{1}' type = 'text' class='form-control' name='{1}' />
"+
                                    "</td>
";

            string selectTD = @"<td>{0}</td>
                                <td>
                                <select id='{1}' class='form-control' name='{1}'>
                                    {2}
                                </select>
                            </td>";

            string chkTD = @"<td>{0}</td>
                <td>
                    <label for='chkY_{1}'>是<input type='checkbox' id='chkY_{1}' value='true' class='form-control' name='{1}'></label>
                    <label for='chkN_{1}'>否<input type='checkbox' value='false' id='chkN_{1}' class='form-control' name='{1}'></label>
                </td>";

            if (p.PropertyType == typeof(Guid?)||p.PropertyType==typeof(Guid))
            {
                //GUID类型的,去数据库中查找并生成Select
                StringBuilder optSb = new StringBuilder();
                DataTable dt = SqlHelper.ExecuteDataTable("select * from Foreign_Key_Table where Column_Code=@cc and Table_Code=@tc order by Order_ID",
                    new SqlParameter("@cc", p.Name),new SqlParameter("tc",type_code));
                if (dt.Rows.Count > 0)
                {
                    for (int i = 0; i < dt.Rows.Count; i++)
                    {
                        optSb.AppendLine(string.Format("<option value='{0}'>{1}</option>", dt.Rows[i]["Key_Code"], dt.Rows[i]["Key_Name"]));
                    }
                    return string.Format(selectTD, getCommentText(tp1, p.Name), p.Name, optSb.ToString());
                }
                else
                {
                    //如果没有查到,非外键表,直接显示
                    return string.Format(inputTD, getCommentText(tp1, p.Name), p.Name);
                }
            }
            else if (p.PropertyType == typeof(bool?) || p.PropertyType == typeof(bool))
            {
                return string.Format(chkTD,getCommentText(tp1, p.Name),p.Name);
            }
            else
            {
                //生成input
                return string.Format(inputTD,getCommentText(tp1,p.Name),p.Name);
            }
        }
原文地址:https://www.cnblogs.com/DayDreamEveryWhere/p/6100167.html