/// <summary>
/// 得到一个对象实体
/// </summary>
public ITCastOCSS.Model.Course DataRowToModel(DataRow row)
{
ITCastOCSS.Model.Course model = new ITCastOCSS.Model.Course();
if (row != null)
{
if (row["CID"] != null && row["CID"].ToString() != "")
{
model.CID = int.Parse(row["CID"].ToString());
}
if (row["Description"] != null)
{
model.Description = row["Description"].ToString();
}
if (row["Grade"] != null)
{
model.Grade = row["Grade"].ToString();
}
if (row["Term"] != null)
{
model.Term = row["Term"].ToString();
}
if (row["Credit"] != null && row["Credit"].ToString() != "")
{
model.Credit = int.Parse(row["Credit"].ToString());
}
if (row["CName"] != null)
{
model.CName = row["CName"].ToString();
}
}
return(model);
}
/// <summary>
/// 增加一条数据
/// </summary>
public int Add(ITCastOCSS.Model.Course model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into Course(");
strSql.Append("Description,Grade,Term,Credit,CName)");
strSql.Append(" values (");
strSql.Append("@Description,@Grade,@Term,@Credit,@CName)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@Description", SqlDbType.NVarChar, -1),
new SqlParameter("@Grade", SqlDbType.NVarChar, 10),
new SqlParameter("@Term", SqlDbType.NVarChar, 10),
new SqlParameter("@Credit", SqlDbType.Int, 4),
new SqlParameter("@CName", SqlDbType.NVarChar, 20)
};
parameters[0].Value = model.Description;
parameters[1].Value = model.Grade;
parameters[2].Value = model.Term;
parameters[3].Value = model.Credit;
parameters[4].Value = model.CName;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(ITCastOCSS.Model.Course model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Course set ");
strSql.Append("Description=@Description,");
strSql.Append("Grade=@Grade,");
strSql.Append("Term=@Term,");
strSql.Append("Credit=@Credit,");
strSql.Append("CName=@CName");
strSql.Append(" where CID=@CID");
SqlParameter[] parameters =
{
new SqlParameter("@Description", SqlDbType.NVarChar, -1),
new SqlParameter("@Grade", SqlDbType.NVarChar, 10),
new SqlParameter("@Term", SqlDbType.NVarChar, 10),
new SqlParameter("@Credit", SqlDbType.Int, 4),
new SqlParameter("@CName", SqlDbType.NVarChar, 20),
new SqlParameter("@CID", SqlDbType.Int, 4)
};
parameters[0].Value = model.Description;
parameters[1].Value = model.Grade;
parameters[2].Value = model.Term;
parameters[3].Value = model.Credit;
parameters[4].Value = model.CName;
parameters[5].Value = model.CID;
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 ITCastOCSS.Model.Course GetModel(int CID)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 CID,Description,Grade,Term,Credit,CName from Course ");
strSql.Append(" where CID=@CID");
SqlParameter[] parameters =
{
new SqlParameter("@CID", SqlDbType.Int, 4)
};
parameters[0].Value = CID;
ITCastOCSS.Model.Course model = new ITCastOCSS.Model.Course();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}
