/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(Maticsoft.Model.Courses model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Courses set ");
strSql.Append("couName=@couName,");
strSql.Append("couTime=@couTime,");
strSql.Append("couPoint=@couPoint");
strSql.Append(" where ID=@ID ");
SqlParameter[] parameters =
{
new SqlParameter("@couName", SqlDbType.VarChar, 20),
new SqlParameter("@couTime", SqlDbType.Int, 4),
new SqlParameter("@couPoint", SqlDbType.Float, 8),
new SqlParameter("@ID", SqlDbType.VarChar, 15)
};
parameters[0].Value = model.couName;
parameters[1].Value = model.couTime;
parameters[2].Value = model.couPoint;
parameters[3].Value = model.ID;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 增加一条数据
/// </summary>
public bool Add(Maticsoft.Model.Courses model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into Courses(");
strSql.Append("ID,couName,couTime,couPoint)");
strSql.Append(" values (");
strSql.Append("@ID,@couName,@couTime,@couPoint)");
SqlParameter[] parameters =
{
new SqlParameter("@ID", SqlDbType.VarChar, 15),
new SqlParameter("@couName", SqlDbType.VarChar, 20),
new SqlParameter("@couTime", SqlDbType.Int, 4),
new SqlParameter("@couPoint", SqlDbType.Float, 8)
};
parameters[0].Value = model.ID;
parameters[1].Value = model.couName;
parameters[2].Value = model.couTime;
parameters[3].Value = model.couPoint;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
private void btConfirm_Click(object sender, EventArgs e)
{
string ID = tbID.Text.Trim(),
couName = tbCouName.Text.Trim();
decimal couTime = nudCouTime.Value,
couPoint = nudCouPoint.Value;
if (couName == "" || couName == null || ID == "" || ID == null)
{
MessageBox.Show("不能有空！", "提醒", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
if (couTime > 0 && couPoint > 0)
{
if (new Maticsoft.BLL.Courses().Exists(ID))
{
MessageBox.Show("课程已存在！", "提醒", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
Maticsoft.Model.Courses course = new Maticsoft.Model.Courses();
course.ID = ID;
course.couName = couName;
course.couTime = Convert.ToInt32(couTime);
course.couPoint = couPoint;
Maticsoft.Common.StaticDataClass.course = course;
Main main = (Main)this.Owner;
if (main.AddCourse())
{
MessageBox.Show("添加成功！", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
main.LoadData_Course();
this.Close();
}
else
{
MessageBox.Show("添加失败！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
else
{
MessageBox.Show("学时和学分都应大于零！", "提醒", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public Maticsoft.Model.Courses DataRowToModel(DataRow row)
{
Maticsoft.Model.Courses model = new Maticsoft.Model.Courses();
if (row != null)
{
if (row["ID"] != null)
{
model.ID = row["ID"].ToString();
}
if (row["couName"] != null)
{
model.couName = row["couName"].ToString();
}
if (row["couTime"] != null && row["couTime"].ToString() != "")
{
model.couTime = int.Parse(row["couTime"].ToString());
}
if (row["couPoint"] != null && row["couPoint"].ToString() != "")
{
model.couPoint = decimal.Parse(row["couPoint"].ToString());
}
}
return(model);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public Maticsoft.Model.Courses GetModel(string ID)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 ID,couName,couTime,couPoint from Courses ");
strSql.Append(" where ID=@ID ");
SqlParameter[] parameters =
{
new SqlParameter("@ID", SqlDbType.VarChar, 15)
};
parameters[0].Value = ID;
Maticsoft.Model.Courses model = new Maticsoft.Model.Courses();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}