用反射，将DataRow行转为Object对象
2024-03-30 04:21:35
/// <summary>
/// 反射辅助类
/// </summary>
public class ReflectionHelper
{
/// <summary>
/// 获取类型
/// </summary>
/// <param name="typeAndAssName"></param>
/// <returns></returns>
public static Type GetType(string typeAndAssName)
{
string[] strArray = typeAndAssName.Split(new char[] { ',' });
if (strArray.Length < )
{
return Type.GetType(typeAndAssName);
}
return GetType(strArray[].Trim(), strArray[].Trim());
}
/// <summary>
/// 获取类型
/// </summary>
/// <param name="typeFullName"></param>
/// <param name="assemblyName"></param>
/// <returns></returns>
public static Type GetType(string typeFullName, string assemblyName)
{
if (assemblyName == null)
{
return Type.GetType(typeFullName);
}
Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();
foreach (Assembly assembly in assemblies)
{
if (assembly.FullName.Split(new char[] { ',' })[].Trim() == assemblyName.Trim())
{
return assembly.GetType(typeFullName);
}
}
Assembly assembly2 = Assembly.Load(assemblyName);
if (assembly2 != null)
{
return assembly2.GetType(typeFullName);
}
return null;
}
}
/// <summary>
/// 转换DataRow到实体对象
/// </summary>
/// <param name="objType"></param>
/// <param name="row"></param>
/// <returns></returns>
public static object ConvertRowToObject( Type objType , DataRow row )
{
if ( row == null )
{
return null;
}
DataTable table = row.Table;
object target = Activator.CreateInstance( objType );
foreach ( DataColumn column in table.Columns )
{
PropertyInfo property = objType.GetProperty( column.ColumnName , BindingFlags.Public | BindingFlags.Instance | BindingFlags.IgnoreCase );
if ( property == null )
{
throw new PropertyNotFoundException( column.ColumnName );
}
Type propertyType = property.PropertyType;
object obj3 = null;
bool flag = true;
try
{
obj3 = TypeHelper.ChangeType( propertyType , row[ column.ColumnName ] );
}
catch
{
flag = false;
}
if ( flag )
{
object[ ] args = new object[ ] { obj3 };
objType.InvokeMember( column.ColumnName , BindingFlags.SetProperty | BindingFlags.Public | BindingFlags.Instance | BindingFlags.IgnoreCase , null , target , args );
}
}
return target;
}
/// <summary>
/// 类型辅助类
/// </summary>
public class TypeHelper
{
/// <summary>
/// 调整对象类型
/// </summary>
/// <param name="targetType"></param>
/// <param name="val"></param>
/// <returns></returns>
public static object ChangeType(Type targetType, object val)
{
if (val == null)
{
return null;
}
if (targetType == val.GetType())
{
return val;
}
if (targetType == typeof(bool))
{
if (val.ToString() == "")
{
return false;
}
if (val.ToString() == "")
{
return true;
}
}
if (targetType.IsEnum)
{
int result = ;
if (!int.TryParse(val.ToString(), out result))
{
return Enum.Parse(targetType, val.ToString());
}
return val;
}
if (targetType == typeof(Type))
{
return ReflectionHelper.GetType(val.ToString());
}
return Convert.ChangeType(val, targetType);
} public static string GetClassSimpleName(Type t)
{
string[] strArray = t.ToString().Split(new char[] { '.' });
return strArray[strArray.Length - ].ToString();
} public static string GetDefaultValue(Type destType)
{
if (IsNumbericType(destType))
{
return "";
}
if (destType == typeof(string))
{
return "\"\"";
}
if (destType == typeof(bool))
{
return "false";
}
if (destType == typeof(DateTime))
{
return "DateTime.Now";
}
if (destType == typeof(Guid))
{
return "System.Guid.NewGuid()";
}
if (destType == typeof(TimeSpan))
{
return "System.TimeSpan.Zero";
}
return "null";
} public static Type GetTypeByRegularName(string regularName)
{
return ReflectionHelper.GetType(regularName);
} public static string GetTypeRegularName(Type destType)
{
string str = destType.Assembly.FullName.Split(new char[] { ',' })[];
return string.Format("{0},{1}", destType.ToString(), str);
} public static string GetTypeRegularNameOf(object obj)
{
return GetTypeRegularName(obj.GetType());
} public static bool IsFixLength(Type destDataType)
{
return (IsNumbericType(destDataType) || ((destDataType == typeof(byte[])) || ((destDataType == typeof(DateTime)) || (destDataType == typeof(bool)))));
} public static bool IsNumbericType(Type destDataType)
{
return ((((((destDataType == typeof(int)) || (destDataType == typeof(uint))) || ((destDataType == typeof(double)) || (destDataType == typeof(short)))) || (((destDataType == typeof(ushort)) || (destDataType == typeof(decimal))) || ((destDataType == typeof(long)) || (destDataType == typeof(ulong))))) || ((destDataType == typeof(float)) || (destDataType == typeof(byte)))) || (destDataType == typeof(sbyte)));
} public static bool IsSimpleType(Type t)
{
return (IsNumbericType(t) || ((t == typeof(char)) || ((t == typeof(string)) || ((t == typeof(bool)) || ((t == typeof(DateTime)) || ((t == typeof(Type)) || t.IsEnum))))));
}
}
两个类，和一个反射方法。直接复制 使用
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