The data source is XML, so it expands.
No more nonsense, directly on the code (for some reason, the partial data modified or streamlined).
Using System.Text;
Using System.Collections;
Using System.Xml;
Using System.Web;
Using System;
<summary>
Summary description of Createtree
</summary>
public class Menutree
{
int index = 0;//Menu Column ID index
Private ArrayList havepermission = new ArrayList ();
private bool Isvip = false;
<summary>
Permissions that the logged-on user has
</summary>
Private ArrayList Havepermissions
{
get {return havepermission;}
set {havepermission = value;}
}
<summary>
Whether the logged-on user is a VIP
</summary>
private bool Isvip
{
get {return ISVIP;}
set {ISVIP = value;}
}
<summary>
Whether the logged-on user has the privilege of being a VIP user
</summary>
<param name= "Havepermission" ></param>
<param name= "ISVIP" ></param>
Public Menutree (ArrayList havepermission, bool ISVIP)
{
This. Havepermissions = havepermission;
This. ISVIP = ISVIP;
}
<summary>
Binding tree
</summary>
public string Binddatatotree ()
{
System.Xml.XmlDocument document = new System.Xml.XmlDataDocument ();
Document. Load (HttpContext.Current.Server.MapPath ("Menudata.xml"));
return createtreehtml (document. DocumentElement, 0);
}
<summary>
Create a column tree
</summary>
<param name= "Document" >xml node </param>
<param name= "Deep" > Tree depth </param>
private string createtreehtml (System.Xml.XmlNode document, int deep)
{
String nodeType = "menu";//the type of node to generate the CSS type of the child node
StringBuilder treehtml = new StringBuilder ();
foreach (System.Xml.XmlNode node in document. ChildNodes)
{
String MenuID = String. Empty;
String treenodehtml = String. Empty;
String nodename = node. Name;
String showname = Getattributesvalue (node. attributes["Name"])//Display column name
String nodeId = Getattributesvalue (node. attributes["id"]);//Column ID
BOOL Isexpand = getattributesvalue (node. attributes["Isexpand"]). ToLower (). Trim () = = "true"? Whether the true:false;//is expanded
String permissions = Getattributesvalue (node. attributes["Permissions"]);//Permission string
BOOL ISONLYVIP = getattributesvalue (node. attributes["ISONLYVIP"]). ToLower (). Trim () = = "true"? true:false;//whether only VIP access is allowed
BOOL ISUNVIP = getattributesvalue (node. attributes["ISUNVIP"]). ToLower (). Trim () = = "true"? true:false;//whether only non-VIP access
String eventscript = Getattributesvalue (node. attributes["Eventscript"]);//Event Script
int chlidnodescount = node. childnodes.count;//Number of child nodes
BOOL Ispermissions = getispermissions (permissions);//have permission
if (!ispermissions)
{
Continue If there is no permission, this node is not generated
}
if (nodename = = "Module")
{
if (ISUNVIP && isvip)
{
continue;//if the VIP member is set to not allow access to the sub column
}
MenuID = Getmenuid (nodeId);
Treehtml.appendformat ("<div class= ' Module ' id= ' menu{0} ' onclick= ' Donodes" (this); 1} ' onselectstart= ' return false; ' > ", MenuID, Eventscript);
Treehtml.append ("Treehtml.appendformat ("<span>{0}</span>", showname);
Treehtml.append ("</div>");
Deep = 0;
NodeType = "Module";
}
Else
{
Treehtml.append ("<table cellpadding= ' 0 ' cellspacing= ' 0 ' style= '" border-width:0;width:90% ' > ");
Treehtml.append ("<tr class= ' Nodeline ' >");
for (int i = 0; i < deep; i++)
{
if (i = = deep-1)
{
Treehtml.append ("<td class= ' Nodeicobox ' >");
if (Chlidnodescount > 0)
{
MenuID = Getmenuid (nodeId);
Treehtml.appendformat ("<a id= ' menu{0} ' href= ' javascript:; ' onclick= ' Donodes (this,\" menu\ ") ' ></a>, MenuID, (Isexpand?) "Open-menu": "Close-menu"));
}
Else
{
Treehtml.append ("}
Treehtml.append ("</td>");
}
Else
{
Treehtml.append ("<td style= ' width:20px;") > </td> ");
}
}
String url = getattributesvalue (node. attributes["URL"]); Link Address
string title = Getattributesvalue (node. attributes["title"]);//link Title information
String Menunodeid = Nodeid.trim (). Length > 0? "Id= ' Menunode" + nodeId + "'": String. empty;//tree Node ID
Treehtml.append ("<td style= ' white-space:nowrap;") > ");
if (URL. Length > 0 | | Chlidnodescount = 0)
{
if (!isonlyvip | | (Isonlyvip && ISVIP)) Whether the column is only open for VIP
{
if (URL. Length > 0)
{
Treehtml.appendformat ("<a href= ' {0} ' target= ' MainFrame ' title= ' {1} ' {3} {4}>{2}</a>", URL, title, ShowName , Eventscript, Menunodeid);
}
Else
{
Treehtml.appendformat ("<a href= ' javascript:; ' target= ' MainFrame ' title= ' {0} ' {2} {3}>{1}</a>", title, ShowName, Eventscript, Menunodeid);
}
}
Else
{
Treehtml.appendformat (' <a href= ' javascript:; ' target= ' MainFrame ' title= ' {1} ' onclick= ' return Alertvip (); ' class= ' Disablecolor ' {3}>{2}</a> ', url, title, ShowName, Menunodeid);
}
}
Else
{
Treehtml.appendformat ("<a href= ' javascript:; ' onclick= ' Doaclick (\" menu{0}\ "); ' title= ' {1} ' {3} {4}>{2}</a > ", MenuID, title, ShowName, Eventscript, Menunodeid);
}
Treehtml.append ("</td>");
Treehtml.append ("</tr>");
Treehtml.append ("</table>");
}
if (Chlidnodescount > 0)
{
treenodehtml = createtreehtml (node, deep + 1);
}
if (Treenodehtml.length > 0)
{
Treehtml.appendformat ("<div id= ' Menu{0}nodes ' {1} style= ' {2} ' >", MenuID, (NodeType = "Module"?) "Class= ' Menus '": "Class= ' Menunodes '"), (Isexpand? "Display:block;": "Display:none;");
Treehtml.append (treenodehtml);
Treehtml.append ("</div>");
}
}
return treehtml.tostring ();
}
<summary>
Get the ID of the column
</summary>
private string Getmenuid (String nodeId)
{
Return nodeid.length > 0? NodeId:Convert.ToString (++index);
}
<summary>
Get node value
</summary>
private String Getattributesvalue (XmlAttribute attributevalue)
{
return attributevalue = null? "": AttributeValue.Value.Trim ();
}
<summary>
Whether you have permission
</summary>
private bool Getispermissions (string permissions)
{
if (havepermissions.count = 0)
{
return false;
}
if (permissions. Length = = 0)
{
return true;
}
Else
{
string[] arrpermissions = permissions. Split (', ');
for (int i = 0; i < arrpermissions.length; i++)
{
if (Havepermissions.contains (arrpermissions[i). Trim ())
{
return true;
}
}
return false;
}
}
}
This code I feel easy to expand, as long as a little change in the code can be used in their own projects.
