/// <summary>
/// 把实体类转换成键/值对集合
/// </summary>
/// <param name="entity"></param>
/// <param name="dict"></param>
private static void GetParameters(Region_CEntity entity, Dictionary <string, object> dict)
{
dict.Add("ID", entity.ID);
dict.Add("Country", entity.Country);
dict.Add("Province", entity.Province);
dict.Add("City", entity.City);
dict.Add("Area", entity.Area);
dict.Add("Name", entity.Name);
}
/// <summary>
/// 通过数据读取器生成实体类
/// </summary>
/// <param name="rdr"></param>
/// <returns></returns>
private static Region_CEntity GetEntityFromrdr(NullableDataReader rdr)
{
Region_CEntity info = new Region_CEntity();
info.ID = rdr.GetInt32("ID");
info.Country = rdr.GetString("Country");
info.Province = rdr.GetString("Province");
info.City = rdr.GetString("City");
info.Area = rdr.GetString("Area");
info.Name = rdr.GetString("Name");
return(info);
}
/// <summary>
/// 获取实体（异步方式）
/// </summary>
/// <param name="strWhere">参数化查询条件(例如: and Name = @Name )</param>
/// <param name="dict">参数的名/值集合</param>
/// <returns></returns>
public virtual async Task <Region_CEntity> GetEntityAsync(string strWhere, Dictionary <string, object> dict = null)
{
Region_CEntity obj = null;
string strSQL = "select top 1 * from Region_C where 1=1 " + strWhere;
using (NullableDataReader reader = await Task.Run(() => _DB.GetDataReader(strSQL, dict)))
{
if (reader.Read())
{
obj = GetEntityFromrdr(reader);
}
}
return(obj);
}
/// <summary>
/// 更新一条记录（异步方式）
/// </summary>
/// <param name="entity">实体模型</param>
/// <returns></returns>
public virtual async Task <bool> UpdateAsync(Region_CEntity entity)
{
Dictionary <string, object> dict = new Dictionary <string, object>();
GetParameters(entity, dict);
string strSQL = "Update Region_C SET " +
"Country = @Country," +
"Province = @Province," +
"City = @City," +
"Area = @Area," +
"Name = @Name" +
" WHERE " +
"ID = @ID";
return(await Task.Run(() => _DB.ExeSQLResult(strSQL, dict)));
}
/// <summary>
/// 增加一条记录，返回新的ID号。需要有一个单一主键，并且开启有标识符属性（异步方式）
/// </summary>
/// <param name="entity">实体模型</param>
/// <returns></returns>
public virtual async Task <int> InsertAsync(Region_CEntity entity)
{
Dictionary <string, object> dict = new Dictionary <string, object>();
GetParameters(entity, dict);
string strSQL = "insert into Region_C (" +
"Country," +
"Province," +
"City," +
"Area," +
"Name) " +
"values(" +
"@Country," +
"@Province," +
"@City," +
"@Area," +
"@Name)";
return(await Task.Run(() => _DB.ReturnID(strSQL, dict)));
}
/// <summary>
/// 增加一条记录，返回新的ID号。需要有一个单一主键，并且开启有标识符属性
/// </summary>
/// <param name="entity">实体模型</param>
/// <returns></returns>
public virtual int Insert(Region_CEntity entity)
{
Dictionary <string, object> dict = new Dictionary <string, object>();
GetParameters(entity, dict);
string strSQL = "insert into Region_C (" +
"Country," +
"Province," +
"City," +
"Area," +
"Name) " +
"values(" +
"@Country," +
"@Province," +
"@City," +
"@Area," +
"@Name)";
return(_DB.ReturnID(strSQL, dict));
}
/// <summary>
/// 增加或更新一条记录（异步方式）
/// </summary>
/// <param name="entity">实体模型</param>
/// <param name="IsSave">是否增加</param>
/// <returns></returns>
public virtual async Task <bool> AddOrUpdateAsync(Region_CEntity entity, bool IsSave)
{
return(IsSave ? await AddAsync(entity) : await UpdateAsync(entity));
}
/// <summary>
/// 增加或更新一条记录
/// </summary>
/// <param name="entity">实体模型</param>
/// <param name="IsSave">是否增加</param>
/// <returns></returns>
public virtual bool AddOrUpdate(Region_CEntity entity, bool IsSave)
{
return(IsSave ? Add(entity) : Update(entity));
}
