本文实例讲述了C#实现实体类与字符串互相转换的方法。分享给大家供大家参考。具体实现方法如下：
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using System;
using System.Collections.Generic;
using System.Text;
namespace PackDLL.Data.ConvertData
{
/// <summary>
/// 实体类、字符串互相转换
/// </summary>
public class PackReflectionEntity<T>
{
/// <summary>
/// 将实体类通过反射组装成字符串
/// </summary>
/// <param name="t">实体类</param>
/// <returns>组装的字符串</returns>
public static string GetEntityToString(T t)
{
System.Text.StringBuilder sb = new StringBuilder();
Type type = t.GetType();
System.Reflection.PropertyInfo[] propertyInfos = type.GetProperties();
for (int i = 0; i < propertyInfos.Length; i++)
{
sb.Append(propertyInfos[i].Name + ":" + propertyInfos[i].GetValue(t, null) + ",");
}
return sb.ToString().TrimEnd(new char[] { ',' });
}
/// <summary>
/// 将反射得到字符串转换为对象
/// </summary>
/// <param name="str">反射得到的字符串</param>
/// <returns>实体类</returns>
public static T GetEntityStringToEntity(string str)
{
string[] array = str.Split(',');
string[] temp = null;
Dictionary<string, string> dictionary = new Dictionary<string, string>();
foreach (string s in array)
{
temp = s.Split(':');
dictionary.Add(temp[0], temp[1]);
}
System.Reflection.Assembly assembly = System.Reflection.Assembly.GetAssembly(typeof(T));
T entry = (T)assembly.CreateInstance(typeof(T).FullName);
System.Text.StringBuilder sb = new StringBuilder();
Type type = entry.GetType();
System.Reflection.PropertyInfo[] propertyInfos = type.GetProperties();
for (int i = 0; i < propertyInfos.Length; i++)
{
foreach (string key in dictionary.Keys)
{
if (propertyInfos[i].Name == key.ToString())
{
propertyInfos[i].SetValue(entry, GetObject(propertyInfos[i], dictionary[key]), null);
break;
}
}
}
return entry;
}
/// <summary>
/// 转换值的类型
/// </summary>
/// <param name="p"></param>
/// <param name="value"></param>
/// <returns></returns>
static object GetObject(System.Reflection.PropertyInfo p, string value)
{
switch (p.PropertyType.Name.ToString().ToLower())
{
case "int16":
return Convert.ToInt16(value);
case "int32":
return Convert.ToInt32(value);
case "int64":
return Convert.ToInt64(value);
case "string":
return Convert.ToString(value);
case "datetime":
return Convert.ToDateTime(value);
case "boolean":
return Convert.ToBoolean(value);
case "char":
return Convert.ToChar(value);
case "double":
return Convert.ToDouble(value);
default:
return value;
}
}
}
}
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希望本文所述对大家的C#程序设计有所帮助。