/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(Model.Student_T model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Student_T set ");
strSql.Append("Name=@Name,");
strSql.Append("Age=@Age");
strSql.Append(" where StudentID=@StudentID ");
SqlParameter[] parameters =
{
new SqlParameter("@Name", SqlDbType.NVarChar, 50),
new SqlParameter("@Age", SqlDbType.Int, 4),
new SqlParameter("@StudentID", SqlDbType.Int, 4)
};
parameters[0].Value = model.Name;
parameters[1].Value = model.Age;
parameters[2].Value = model.StudentID;
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(Model.Student_T model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into Student_T(");
strSql.Append("Name,Age)");
strSql.Append(" values (");
strSql.Append("@Name,@Age)");
SqlParameter[] parameters =
{
//new SqlParameter("@StudentID", SqlDbType.Int,4),
new SqlParameter("@Name", SqlDbType.NVarChar, 50),
new SqlParameter("@Age", SqlDbType.Int, 4)
};
// parameters[0].Value = model.StudentID;
parameters[0].Value = model.Name;
parameters[1].Value = model.Age;
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.Student_T DataRowToModel(DataRow row)
{
Model.Student_T model = new Model.Student_T();
if (row != null)
{
if (row["StudentID"] != null && row["StudentID"].ToString() != "")
{
model.StudentID = int.Parse(row["StudentID"].ToString());
}
if (row["Name"] != null)
{
model.Name = row["Name"].ToString();
}
if (row["Age"] != null && row["Age"].ToString() != "")
{
model.Age = int.Parse(row["Age"].ToString());
}
}
return(model);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public Model.Student_T GetModel(int StudentID)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 StudentID,Name,Age from Student_T ");
strSql.Append(" where StudentID=@StudentID ");
SqlParameter[] parameters =
{
new SqlParameter("@StudentID", SqlDbType.Int, 4)
};
parameters[0].Value = StudentID;
Model.Student_T model = new Model.Student_T();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}
