将数据库读出来的数据转化成集合
时间：2021-07-01 10:21:17
帮助过：22人阅读
class DynamicBuilder<T>
{
private PropertyInfo[] properties;
private DynamicBuilder() { }
public T Build(IDataRecord reader)
{
T result = (T)Activator.CreateInstance(
typeof(T));
for (
int i =
0; i < reader.FieldCount; i++
)
{
if (properties[i] !=
null && !
reader.IsDBNull(i))
{
if (properties[i].PropertyType.IsEnum)
{
properties[i].SetValue(result, Enum.ToObject(properties[i].PropertyType, reader[i]), null);
}
else
{
properties[i].SetValue(result, Convert.ChangeType(reader[i], properties[i].PropertyType), null);
}
}
}
return result;
}
public static DynamicBuilder<T>
CreateBuilder(IDataRecord reader)
{
DynamicBuilder<T> result =
new DynamicBuilder<T>
();
result.properties =
new PropertyInfo[reader.FieldCount];
for (
int i =
0; i < reader.FieldCount; i++
)
{
result.properties[i] =
typeof(T).GetProperty(reader.GetName(i), BindingFlags.Public | BindingFlags.Instance |
BindingFlags.IgnoreCase);
}
return result;
}
}
将数据库读出来的数据转化成集合
标签：data mic cti bnu eof new name info tor
