通过反射获得枚举的对应值显示
2017-06-15 17:13:23 访问(1602) 赞(0) 踩(0)
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using System;
using System.IO;
using System.Reflection;
using System.Text;
namespace eKingWGSS.Website.Management.WebForms.Tools.DevEnum
{
public partial class Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
/// <summary>
///
/// </summary>
/// <param name="theResult"></param>
/// <param name="isEnd"></param>
protected void PrintHtmlTable(StringBuilder theResult,bool isEnd)
{
if (isEnd)
theResult.AppendLine("</table>");
else
theResult.AppendLine("<table border=\"1\">");
}
/// <summary>
///
/// </summary>
/// <param name="theResult"></param>
/// <param name="isEnd"></param>
protected void PrintHtmlTr(StringBuilder theResult, bool isEnd)
{
if (isEnd)
theResult.AppendLine("</tr>");
else
theResult.AppendLine("<tr>");
}
/// <summary>
///
/// </summary>
/// <param name="theResult"></param>
/// <param name="strLeft"></param>
/// <param name="leftStyle"></param>
/// <param name="strRight"></param>
/// <param name="rightStyle"></param>
protected void PrintHtmlTd(StringBuilder theResult, string strLeft,string leftStyle, string strRight, string rightStyle)
{
theResult.AppendLine("<td " + leftStyle + ">" + strLeft + "</td>");
theResult.AppendLine("<td "+ rightStyle + ">" + strRight + "</td>");
}
/// <summary>
///
/// </summary>
/// <param name="theResult"></param>
/// <param name="strLeft"></param>
/// <param name="strRight"></param>
protected void PrintHtmlTd(StringBuilder theResult, string strLeft,string strRight)
{
theResult.AppendLine("<td>" + strLeft + "</td>");
theResult.AppendLine("<td>" + strRight + "</td>");
}
/// <summary>
/// 获得枚举Name的数组
/// </summary>
/// <param name="t"></param>
/// <returns></returns>
protected string[] GetEnumNames(Type t)
{
return System.Enum.GetNames(t);
}
/// <summary>
/// 获得枚举值的Int[]
/// </summary>
/// <param name="t"></param>
/// <returns></returns>
protected int[] GetEnumIntArray(Type t)
{
return System.Enum.GetValues(t) as int[];
}
/// <summary>
/// 获得除去后缀后的仅文件名
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public string FileOnlyNameGet(string fileName)
{
if (fileName == null || fileName.Length == 0)
return "";
int idxOne = fileName.LastIndexOf('/');
int idxTwo = fileName.LastIndexOf('\\');
if (idxOne != -1)
{
if (idxTwo > idxOne)
fileName = fileName.Substring(idxTwo + 1);
else
fileName = fileName.Substring(idxOne + 1);
}
else
{
if (idxTwo != -1)
fileName = fileName.Substring(idxTwo + 1);
}
int idx = fileName.LastIndexOf('.');
if (idx != -1)
fileName = fileName.Substring(0, idx);
return fileName;
}
/// <summary>
/// 获得DLL的路径
/// </summary>
/// <param name="strClassName"></param>
/// <returns></returns>
protected string GetDLLName(string strClassName)
{
if (strClassName == null)
return "";
strClassName = strClassName.Trim().ToLower();
DirectoryInfo dir = new DirectoryInfo
(Request.PhysicalApplicationPath + "bin");
FileInfo[] fA = dir.GetFiles();
if (fA == null)
return "";
string strEx = null;
string strName = null;
foreach (FileInfo fi in fA)
{
if (fi.Extension == null)
continue;
strEx = fi.Extension.Trim().ToLower();
if (!(strEx == ".dll" || strEx == ".exe"))
continue;
strName = FileOnlyNameGet(fi.Name);
if (strClassName.StartsWith(strName.ToLower() + "."))
{
return fi.FullName;
}
}
return "";
}
}
}
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<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="eKingWGSS.Website.Management.WebForms.Tools.DevEnum.Default" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<a href="Default.aspx">刷新</a>
<br />
枚举逻辑类：<asp:TextBox ID="txt_EnumClassName" runat="server" Width="400px"></asp:TextBox>
<asp:Button ID="btn_Read" runat="server" Text="读取" OnClick="btn_Read_Click" />
<br />
(参考输入：eKing.SzdfLib.Enums.Education+EmEducation)
<br />
<br />
<asp:Literal runat="server" ID="lt_Result"></asp:Literal>
</div>
</form>
</body>
</html>
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/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btn_Read_Click(object sender, EventArgs e)
{
try {
string strClassName = txt_EnumClassName.Text.Trim();
if(strClassName.Length == 0)
{
lt_Result.Text = "请输入枚举类";
return;
}
// 通过className和bin目录获得对应的dll名称 //
string dllFullName = GetDLLName(strClassName);
if (dllFullName.Length == 0)
{
lt_Result.Text = "没有找到枚举对应所在的dll";
return;
}
Assembly ass = null;
ass = Assembly.LoadFile(dllFullName);
if(ass == null)
{
lt_Result.Text = "没有找到dll对应的Assembly";
return;
}
Type enumType
= ass.GetType(strClassName, false, true);
//if (enumType == null)
//{
// string lowerClassName = strClassName.ToLower();
// Type[] tA = ass.GetTypes();
// foreach (Type t in tA)
// {
// if (t.FullName.ToLower() == lowerClassName)
// {
// enumType = t;
// break;
// }
// }
//}
if (enumType == null)
{
lt_Result.Text = "没有找到对应的Type";
return;
}
StringBuilder theResult = new StringBuilder();
PrintHtmlTable(theResult, false);
int[] vA = GetEnumIntArray(enumType);
string[] sA = GetEnumNames(enumType);
int vLen = vA.Length;
int sLen = sA.Length;
if(vLen!=sLen)
{
lt_Result.Text = "枚举值不匹配";
return;
}
for (int i = 0; i < vLen; ++i)
{
PrintHtmlTr(theResult, false);
PrintHtmlTd(theResult, sA[i], vA[i].ToString());
PrintHtmlTr(theResult, true);
}
PrintHtmlTable(theResult, true);
lt_Result.Text = theResult.ToString();
}
catch (Exception err)
{
lt_Result.Text = err.Message;
}
}
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