/// <summary>
/// 增加一条数据
/// </summary>
public int Add(BookShop.Model.UserState model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into UserStates(");
strSql.Append("Name)");
strSql.Append(" values (");
strSql.Append("@Name)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@Name", SqlDbType.NVarChar, 50)
};
parameters[0].Value = model.Name;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(1);
}
else
{
return(Convert.ToInt32(obj));
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public BookShop.Model.UserState GetModel(int Id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 Id,Name from UserStates ");
strSql.Append(" where Id=@Id ");
SqlParameter[] parameters =
{
new SqlParameter("@Id", SqlDbType.Int, 4)
};
parameters[0].Value = Id;
BookShop.Model.UserState model = new BookShop.Model.UserState();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
if (ds.Tables[0].Rows[0]["Id"].ToString() != "")
{
model.Id = int.Parse(ds.Tables[0].Rows[0]["Id"].ToString());
}
model.Name = ds.Tables[0].Rows[0]["Name"].ToString();
return(model);
}
else
{
return(null);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public BookShop.Model.UserState DataRowToModel(DataRow row)
{
BookShop.Model.UserState model=new BookShop.Model.UserState();
if (row != null)
{
if(row["Id"]!=null && row["Id"].ToString()!="")
{
model.Id=int.Parse(row["Id"].ToString());
}
if(row["Name"]!=null)
{
model.Name=row["Name"].ToString();
}
}
return model;
}
/// <summary>
/// 更新一条数据
/// </summary>
public void Update(BookShop.Model.UserState model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update UserStates set ");
strSql.Append("Name=@Name");
strSql.Append(" where Id=@Id ");
SqlParameter[] parameters =
{
new SqlParameter("@Id", SqlDbType.Int, 4),
new SqlParameter("@Name", SqlDbType.NVarChar, 50)
};
parameters[0].Value = model.Id;
parameters[1].Value = model.Name;
DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public BookShop.Model.UserState GetModel(int Id)
{
StringBuilder strSql=new StringBuilder();
strSql.Append("select top 1 Id,Name from UserState ");
strSql.Append(" where Id=@Id");
SqlParameter[] parameters = {
new SqlParameter("@Id", SqlDbType.Int,4)
};
parameters[0].Value = Id;
BookShop.Model.UserState model=new BookShop.Model.UserState();
DataSet ds=DbHelperSQL.Query(strSql.ToString(),parameters);
if(ds.Tables[0].Rows.Count>0)
{
return DataRowToModel(ds.Tables[0].Rows[0]);
}
else
{
return null;
}
}
