/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(StudentMS.Model.Tree model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Tree set ");
strSql.Append("TName=@TName,");
strSql.Append("TNOParent=@TNOParent");
strSql.Append(" where TNO=@TNO ");
SqlParameter[] parameters =
{
new SqlParameter("@TNO", SqlDbType.VarChar, 10),
new SqlParameter("@TName", SqlDbType.VarChar, 50),
new SqlParameter("@TNOParent", SqlDbType.VarChar, 10)
};
parameters[0].Value = model.TNO;
parameters[1].Value = model.TName;
parameters[2].Value = model.TNOParent;
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 StudentMS.Model.Tree GetModel(string TNO)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 TNO,TName,TNOParent from Tree ");
strSql.Append(" where TNO=@TNO ");
SqlParameter[] parameters =
{
new SqlParameter("@TNO", SqlDbType.VarChar, 50)
};
parameters[0].Value = TNO;
StudentMS.Model.Tree model = new StudentMS.Model.Tree();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
model.TNO = ds.Tables[0].Rows[0]["TNO"].ToString();
model.TName = ds.Tables[0].Rows[0]["TName"].ToString();
model.TNOParent = ds.Tables[0].Rows[0]["TNOParent"].ToString();
return(model);
}
else
{
return(null);
}
}
/// <summary>
/// 增加一条数据
/// </summary>
public void Add(StudentMS.Model.Tree model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into Tree(");
strSql.Append("TNO,TName,TNOParent)");
strSql.Append(" values (");
strSql.Append("@TNO,@TName,@TNOParent)");
SqlParameter[] parameters =
{
new SqlParameter("@TNO", SqlDbType.VarChar, 10),
new SqlParameter("@TName", SqlDbType.VarChar, 50),
new SqlParameter("@TNOParent", SqlDbType.VarChar, 10)
};
parameters[0].Value = model.TNO;
parameters[1].Value = model.TName;
parameters[2].Value = model.TNOParent;
DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
}