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我試圖通過從MySQL表中檢索數據來生成菜單Web控件。我已經將所有數據存儲在一個DataTable中,但到目前爲止,我可以做到一個級別。我確定在這裏肯定有一個遞歸函數,但我不知道如何添加到更深層次。ASP.Net/MySQL多級菜單
這是我到目前爲止已經完成:
public Menus(Menu menu, int menuId)
{
Database db = new Database("localhost", "dotnetcms", "root");
DataTable data;
query = "SELECT * FROM links WHERE menu_id = " + menuId + " ORDER BY `order`, parent ASC";
queryRows = "SELECT COUNT(*) FROM links WHERE menu_id = " + menuId + " ORDER BY `order`, parent ASC";
data = db.AQuery(query);
foreach (DataRow row in data.Rows)
{
if (row[3] == DBNull.Value)
{
menu.Items.Add(new MenuItem(row[1].ToString()));
}
else
{
AddChildMenus(row, menu.Items[Convert.ToInt32(row[3]) - 1]);
}
}
}
private void AddChildMenus(DataRow dr, MenuItem parent)
{
parent.ChildItems.Add(new MenuItem(dr[1].ToString()));
}