大虾们,麻烦帮我看看到底是什么原因啊,对foreach循环不是很懂,希望能帮我解决下。谢谢了。private void BiudTree()
{
YgmSystem.BLL.SysManage sm = new YgmSystem.BLL.SysManage();
DataTable dt = sm.GetTreeList("").Tables[0];
this.listTarget.Items.Clear();
//加载树
this.listTarget.Items.Add(new ListItem("根目录", "0"));
DataRow[] drs = dt.Select("ParentID= " + 0);
foreach (DataRow r in drs)
{
string nodeid = r["NodeID"].ToString();
string text = r["Text"].ToString();
//string parentid=r["ParentID"].ToString();
//string permissionid=r["PermissionID"].ToString();
text = "╋" + text;
this.listTarget.Items.Add(new ListItem(text, nodeid));
int sonparentid = int.Parse(nodeid);
string blank = "├"; BindNode(sonparentid, dt, blank); }
this.listTarget.DataBind(); }
private void BindNode(int parentid, DataTable dt, string blank)
{
DataRow[] drs = dt.Select("ParentID= " + parentid); foreach (DataRow r in drs)
{
string nodeid = r["NodeID"].ToString();
string text = r["Text"].ToString();
//string permissionid=r["PermissionID"].ToString();
text = blank + "『" + text + "』"; this.listTarget.Items.Add(new ListItem(text, nodeid));
int sonparentid = int.Parse(nodeid);
string blank2 = blank + "─";
BindNode(sonparentid, dt, blank2);
}
}
{
YgmSystem.BLL.SysManage sm = new YgmSystem.BLL.SysManage();
DataTable dt = sm.GetTreeList("").Tables[0];
this.listTarget.Items.Clear();
//加载树
this.listTarget.Items.Add(new ListItem("根目录", "0"));
DataRow[] drs = dt.Select("ParentID= " + 0);
foreach (DataRow r in drs)
{
string nodeid = r["NodeID"].ToString();
string text = r["Text"].ToString();
//string parentid=r["ParentID"].ToString();
//string permissionid=r["PermissionID"].ToString();
text = "╋" + text;
this.listTarget.Items.Add(new ListItem(text, nodeid));
int sonparentid = int.Parse(nodeid);
string blank = "├"; BindNode(sonparentid, dt, blank); }
this.listTarget.DataBind(); }
private void BindNode(int parentid, DataTable dt, string blank)
{
DataRow[] drs = dt.Select("ParentID= " + parentid); foreach (DataRow r in drs)
{
string nodeid = r["NodeID"].ToString();
string text = r["Text"].ToString();
//string permissionid=r["PermissionID"].ToString();
text = blank + "『" + text + "』"; this.listTarget.Items.Add(new ListItem(text, nodeid));
int sonparentid = int.Parse(nodeid);
string blank2 = blank + "─";
BindNode(sonparentid, dt, blank2);
}
}
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