/// <summary>
/// 先Delete后Insert 插入所有字段,其中若与实体字段初始值相同则置该字段为空
/// </summary>
/// <param name="arrConditionKey">指定作为Delete依据字段,一个或多个,可以使用对应的EntityColumn属性</param>
/// <returns>先Delete后Insert并返回受影响的行数</returns>
public int DelInsertEx(string[] arrConditionKey)
{
ORMap <BaseEntity> ormap = new ORMap <BaseEntity>(this);
return(ormap.DelInsertEx(arrConditionKey));
}