/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(Model.tbClass model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update tbClass set ");
strSql.Append(" classname = @classname ");
strSql.Append(" where id=@id ");
SqlParameter[] parameters =
{
new SqlParameter("@id", SqlDbType.Int, 4),
new SqlParameter("@classname", SqlDbType.NVarChar, 50)
};
parameters[0].Value = model.id;
parameters[1].Value = model.classname; Util.MyUtil.PrintSql(strSql.ToString());
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public Model.tbClass GetModelTran(int id, SqlTransaction transaction)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select id, classname ");
strSql.Append(" from tbClass ");
strSql.Append(" where id=@id");
SqlParameter[] parameters =
{
new SqlParameter("@id", SqlDbType.Int, 4)
};
parameters[0].Value = id;
Util.MyUtil.PrintSql(strSql.ToString());
Model.tbClass model = new Model.tbClass();
DataSet ds = SQLHelper.ExecuteDataset(transaction, CommandType.Text, 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.classname = ds.Tables[0].Rows[0]["classname"].ToString();
return(model);
}
else
{
return(null);
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool UpdateTran(Model.tbClass model, SqlTransaction transaction)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update tbClass set ");
strSql.Append(" classname = @classname ");
strSql.Append(" where id=@id ");
SqlParameter[] parameters =
{
new SqlParameter("@id", SqlDbType.Int, 4),
new SqlParameter("@classname", SqlDbType.NVarChar, 50)
};
parameters[0].Value = model.id;
parameters[1].Value = model.classname; Util.MyUtil.PrintSql(strSql.ToString());
int rows = SQLHelper.ExecuteNonQuery(transaction, CommandType.Text, strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 增加一条数据
/// </summary>
public int Add(Model.tbClass model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into tbClass(");
strSql.Append("classname");
strSql.Append(") values (");
strSql.Append("@classname");
strSql.Append(") ");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@classname", SqlDbType.NVarChar, 50)
};
parameters[0].Value = model.classname;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
Util.MyUtil.PrintSql(strSql.ToString());
}
/// <summary>
/// 增加一条数据
/// </summary>
public int AddTran(Model.tbClass model, SqlTransaction transaction)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into tbClass(");
strSql.Append("classname");
strSql.Append(") values (");
strSql.Append("@classname");
strSql.Append(") ");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@classname", SqlDbType.NVarChar, 50)
};
parameters[0].Value = model.classname;
object obj = SQLHelper.ExecuteScalar(transaction, CommandType.Text, strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
Util.MyUtil.PrintSql(strSql.ToString());
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public Model.tbClass GetModelTran(int id ,SqlTransaction transaction)
{
StringBuilder strSql=new StringBuilder();
strSql.Append("select id, classname ");
strSql.Append(" from tbClass ");
strSql.Append(" where id=@id");
SqlParameter[] parameters = {
new SqlParameter("@id", SqlDbType.Int,4)
};
parameters[0].Value = id;
Util.MyUtil.PrintSql(strSql.ToString());
Model.tbClass model=new Model.tbClass();
DataSet ds=SQLHelper.ExecuteDataset(transaction,CommandType.Text, 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.classname= ds.Tables[0].Rows[0]["classname"].ToString();
return model;
}
else
{
return null;
}
}
