Serialization of the TreeView of a tree control

treeview| Control
Recently made a small software, a file browser, compared to Windows Explorer, you can view the contents of the file, rather than external programs open, support a variety of file formats, and later prepare to join the content-based search (intended to use the open source of the Dotlucene component). It needs to serialize the tree control, look up a lot of information, in CodeProject find a vb.net write, find a code converter into C #, modified a bit, changed to binary serialization. Attached below for the necessary reference.

Original address:

Http://www.codeproject.com/vb/net/TreeViewDataAccess.asp



I have modified the C # source code:

Using System;
Using System.IO;
Using System.Windows.Forms;
Using System.Runtime.Serialization.Formatters.Binary;

Namespace Testall
{
<summary>
TreeView Serialization Class
</summary>
public class Treeviewdataaccess
{
Public treeviewdataaccess () {}

<summary>
Treeviewdata
</summary>
[Serializable ()]
public struct Treeviewdata
{
Public treenodedata[] Nodes;

<summary>
Recursive initialization of TreeView data
</summary>
<param name= "TreeView" ></param>
Public Treeviewdata (TreeView TreeView)
{
Nodes = new Treenodedata[treeview. Nodes.count];
if (TreeView). Nodes.count = 0)
{
Return
}
for (int i = 0; I <= TreeView. nodes.count-1; i++)
{
Nodes[i] = new Treenodedata (treeview. Nodes[i]);
}
}

<summary>
Pop the TreeView through Treeviewdata
</summary>
<param name= "TreeView" ></param>
public void Populatetree (TreeView treeview)
{
if (this. Nodes = = NULL | | This. nodes.length = 0)
{
Return
}
Treeview. BeginUpdate ();
for (int i = 0; I <= this. Nodes.length-1; i++)
{
Treeview. Nodes.Add (this. Nodes[i]. Totreenode ());
}
Treeview. EndUpdate ();
}
}

<summary>
Treenodedata
</summary>
[Serializable ()]
public struct Treenodedata
{
public string Text;
public int imageindex;
public int selectedimageindex;
public bool Checked;
public bool Expanded;
public object Tag;
Public treenodedata[] Nodes;

<summary>
TreeNode Constructors
</summary>
<param name= "Node" ></param>
Public Treenodedata (TreeNode node)
{
This. Text = node. Text;
This. ImageIndex = node. ImageIndex;
This. selectedImageIndex = node. selectedImageIndex;
This. Checked = node. Checked;
This. Expanded = node. isexpanded;
This. Nodes = new Treenodedata[node. Nodes.count];

if ((!) ( Node. Tag = = null)) && node. Tag.gettype (). isserializable)
{
This. TAG = node. Tag;
}
Else
{
This. Tag = null;
}
if (node. Nodes.count = 0)
{
Return
}
for (int i = 0; I <= node. nodes.count-1; i++)
{
Nodes[i] = new Treenodedata (node. Nodes[i]);
}
}

<summary>
Treenodedata return to TreeNode
</summary>
<returns></returns>
Public TreeNode Totreenode ()
{
TreeNode Totreenode = new TreeNode (this. Text, this. ImageIndex, this. selectedImageIndex);
totreenode.checked = this. Checked;
Totreenode.tag = this. Tag;
if (this. Expanded)
{
Totreenode.expand ();
}
if (this. Nodes = = NULL && this. nodes.length = 0)
{
return null;
}
if (Totreenode!= null && this. nodes.length = 0)
{
return totreenode;
}
for (int i = 0; I <= this. Nodes.length-1; i++)
{
TOTREENODE.NODES.ADD (this. Nodes[i]. Totreenode ());
}
return totreenode;
}
}
<summary>
Load TreeView
</summary>
<param name= "TreeView" ></param>
<param name= "Path" ></param>
public static void Loadtreeviewdata (TreeView treeview, String Path)
{

BinaryFormatter ser = new BinaryFormatter ();
Stream file = new FileStream (path,filemode.open,fileaccess.read,fileshare.read);
Treeviewdata Treedata = (treeviewdata) (Ser. Deserialize (file));
Treedata.populatetree (TreeView);
File. Close ();

}

<summary>
Save TreeView to File
</summary>
<param name= "TreeView" ></param>
<param name= "Path" ></param>
public static void Savetreeviewdata (TreeView treeview, String Path)
{
BinaryFormatter ser = new BinaryFormatter ();
Stream file = new FileStream (path,filemode.create);
Ser. Serialize (file,new treeviewdata (TreeView));
File. Close ();

}
}


}