/// <summary>
/// 填充一个实体类的属性
/// </summary>
/// <param name="entity">实体类的实例</param>
/// <param name="propertyInfo">要填充的属性的信息</param>
/// <param name="sourceValue">从数据源获取到的属性的只</param>
private static void FillProperty(object entity, PropertyInfo propertyInfo, object sourceValue)
{
var result = EntityParser.GetTypeConverter(propertyInfo);
if (result == null)
{
sourceValue = sourceValue.To(propertyInfo.PropertyType);
propertyInfo.SetValue(entity, sourceValue, null);
}
else
{
var propertyValue = result.ConvertFrom(sourceValue);
propertyInfo.SetValue(entity, propertyValue, null);
}
}
/// <summary>
/// 转换属性的值
/// </summary>
/// <param name="propertyInfo">属性信息</param>
/// <param name="source">从数据源获取到的值</param>
/// <param name="destination">目标类型</param>
/// <returns></returns>
public static object ConvertPropertyValue(PropertyInfo propertyInfo, object source, DBType destination)
{
Type destinationType = null;
switch (destination)
{
case DBType.String:
destinationType = typeof(string);
break;
case DBType.Int:
destinationType = typeof(int);
break;
case DBType.Decimal:
destinationType = typeof(decimal);
break;
case DBType.DateTime:
destinationType = typeof(DateTime);
break;
case DBType.BigInt:
destinationType = typeof(long);
break;
}
if (destinationType == null)
{
return(null);
}
var converter = EntityParser.GetTypeConverter(propertyInfo); //获取类型转换器
if (converter != null)
{
return(converter.ConvertTo(source, destinationType)); //使用自定义类型转换器将值转换为另一种类型
}
return(source.To(destinationType));
}