foreach套在for中为什么不走了呢

[suxiaotao_]

public void show()
{
Response.Write("show()方法");
int right_code = 0;
List<int> list = ShowMenu();
string rightSql = "select * from sys_right where right_code = "+right_code;
List<Right> rightList = new List<Right>();




DataTable rightTable = null;
for (int i = 0; i < list.Count; i++)
{
Response.Write("for循环");
right_code = list[i];
rightTable = DbHelp.ReturnDataTable( rightSql);

Response.Write("list中的值"+list[i]);
if (i<list.Count)
{
Response.Write("进入if循环了+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++");


foreach (DataRow rightrow in rightTable.Rows)
{
Response.Write("进入foreach循环了+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++");

Right rr = new Right();
rr.Right_code = Convert.ToInt32(rightrow["right_code"]);
rr.Right_parent_code = Convert.ToInt32(rightrow["right_parent_code"]);
rr.Right_text = Convert.ToString(rightrow["right_text"]);
rr.Right_url = Convert.ToString(rightrow["right_url"]);
rr.Right_type = Convert.ToString(rightrow["right_type"]);

string node = "";
string head = "";
if (rr.Right_type == "Folder")
{
head = "<h1 class=\"type\"><a href=\"javascript:void(0)\" target=\"mainFrame\">\"" + rr.Right_text + "\"</a></h1>";
}

string center = "<div class=\"content\"><table width=\"100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"> <tr><td><img src=\"images/menu_topline.gif\" width=\"160\" height=\"5\" alt=\"\" /></td></tr></table>";
string foot = " <ul class=\"MM\"><li><a href=\"" + rr.Right_url + "\" target=\"mainFrame\">\"" + rr.Right_text + "\"</a></li></ul>";
node = head + center + foot;
mainMenu.InnerHtml += node;

Response.Write(node);
rightList.Add(rr);

}

}
else
{
break;
}

}


}

[木______木]

打断点 看看你return 的rightTable的rows

[子夜__]

if (i<list.Count)
这个条件满足不。

[yue547283947]

断点

if (i<list.Count)
看这个条件满足不


然后看
rightTable.Rows 是不是有东西

[MSDNXGH]

建议打断点，查看运行，代码太长了，

[z195389542]

自己打上斷点
看下 if (i<list.Count)是否满足
以及 Foreach 中那个rightTable.Rows是否有值

[z195389542]

你查询到的rightTable是否有数据？

[ustbwuyi]

打个断点一路F10不就明白了。

[longbin891012]

//判断下rightTable是否有记录
if ((rightTable!= null) && (rightTable.Tables[0].Rows.Count > 0))
{
foreach (DataRow rightrow in rightTable.Rows){//......}

}

[suxiaotao_]

判断了一下rightTable.Rows没有值，第一次发帖，就得到你们的帮助了，谢谢大家。