/// <summary>
/// 增加一条数据
/// </summary>
public bool Add(JPGL.Model.tbStu model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into tbStu(");
strSql.Append("StuNo,StuName,MajorNo,StuGrade,StuTel,StuCredit)");
strSql.Append(" values (");
strSql.Append("@StuNo,@StuName,@MajorNo,@StuGrade,@StuTel,@StuCredit)");
SqlParameter[] parameters =
{
new SqlParameter("@StuNo", SqlDbType.VarChar, 50),
new SqlParameter("@StuName", SqlDbType.VarChar, 50),
new SqlParameter("@MajorNo", SqlDbType.Int, 4),
new SqlParameter("@StuGrade", SqlDbType.VarChar, 50),
new SqlParameter("@StuTel", SqlDbType.VarChar, 50),
new SqlParameter("@StuCredit", SqlDbType.Float, 8)
};
parameters[0].Value = model.StuNo;
parameters[1].Value = model.StuName;
parameters[2].Value = model.tbMajor;
parameters[3].Value = model.StuGrade;
parameters[4].Value = model.StuTel;
parameters[5].Value = model.StuCredit;
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 JPGL.Model.tbStu DataRowToModel(DataRow row)
{
JPGL.Model.tbStu model = new JPGL.Model.tbStu();
if (row != null)
{
if (row["StuNo"] != null)
{
model.StuNo = row["StuNo"].ToString();
}
if (row["StuName"] != null)
{
model.StuName = row["StuName"].ToString();
}
if (row["StuMajor"] != null)
{
model.StuMajor = row["StuMajor"].ToString();
}
if (row["StuGrade"] != null)
{
model.StuGrade = row["StuGrade"].ToString();
}
if (row["StuTel"] != null)
{
model.StuTel = row["StuTel"].ToString();
}
if (row["StuCredit"] != null && row["StuCredit"].ToString() != "")
{
model.StuCredit = decimal.Parse(row["StuCredit"].ToString());
}
}
return(model);
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(JPGL.Model.tbStu model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update tbStu set ");
strSql.Append("StuName=@StuName,");
strSql.Append("MajorNo=@MajorNo,");
strSql.Append("StuGrade=@StuGrade,");
strSql.Append("StuTel=@StuTel,");
strSql.Append("StuCredit=@StuCredit");
strSql.Append(" where StuNo=@StuNo ");
SqlParameter[] parameters =
{
new SqlParameter("@StuName", SqlDbType.VarChar, 50),
new SqlParameter("@MajorNo", SqlDbType.Int, 4),
new SqlParameter("@StuGrade", SqlDbType.VarChar, 50),
new SqlParameter("@StuTel", SqlDbType.VarChar, 50),
new SqlParameter("@StuCredit", SqlDbType.Float, 8),
new SqlParameter("@StuNo", SqlDbType.VarChar, 50)
};
parameters[0].Value = model.StuName;
parameters[1].Value = model.tbMajor;
parameters[2].Value = model.StuGrade;
parameters[3].Value = model.StuTel;
parameters[4].Value = model.StuCredit;
parameters[5].Value = model.StuNo;
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 JPGL.Model.tbStu DataRowToModel(DataRow row)
{
JPGL.Model.tbStu model = new JPGL.Model.tbStu();
if (row != null)
{
if (row["StuNo"] != null)
{
model.StuNo = row["StuNo"].ToString();
}
if (row["StuName"] != null)
{
model.StuName = row["StuName"].ToString();
}
if (row["MajorNo"] != null && row["MajorNo"].ToString() != "")
{
JPGL.DAL.tbMajor major = new tbMajor();
int id = int.Parse(row["MajorNo"].ToString());
model.tbMajor = major.GetModel(id);
//model.MajorName= major.GetModel(id);
//model.MajorNo=int.Parse(row["MajorNo"].ToString());
}
if (row["StuGrade"] != null)
{
model.StuGrade = row["StuGrade"].ToString();
}
if (row["StuTel"] != null)
{
model.StuTel = row["StuTel"].ToString();
}
if (row["StuCredit"] != null && row["StuCredit"].ToString() != "")
{
model.StuCredit = decimal.Parse(row["StuCredit"].ToString());
}
}
return(model);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public JPGL.Model.tbStu GetModel(string StuNo)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 StuNo,StuName,MajorNo,StuGrade,StuTel,StuCredit from tbStu ");
strSql.Append(" where StuNo=@StuNo ");
SqlParameter[] parameters =
{
new SqlParameter("@StuNo", SqlDbType.VarChar, 50)
};
parameters[0].Value = StuNo;
JPGL.Model.tbStu model = new JPGL.Model.tbStu();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}
