create treeview with child treenode according to xml file

Question

hello.

 I had xml file that has node its attribute are ( name , id , sex, child , father). fathe refer to id of father, only the first xmlnode has attribute father with 0 value.

Now i want to create treeview in c#, so each xmlnode has treenode, and each father treenode has child treenode as in xml file.

I wrote this code: 

namespace Fulltree

{

public partial class Form1 : Form

{

public struct person

{

public string id;

public string name;

public string father;

public string child;

}

XDocument xmldoc = XDocument.Parse(Fulltree.Properties.Resources.index);

person[] arr = new person[200];

TreeNode[] tn = new TreeNode[200];

public Form1()

{

InitializeComponent();

setlist();

createtree();

}

public void setlist()

{

int i = 0;

while (i < 200) {

var str = (from n in xmldoc.Descendants("grand")

where n.Attribute("id").Value == (i+1).ToString()

select new

{

Name = n.Attribute("name").Value,

Sex = n.Attribute("sex").Value,

Status = n.Attribute("status").Value,

Child = n.Attribute("child").Value,

Id = n.Attribute("id").Value,

Father = n.Attribute("father").Value

}).First();

{

arr[i].id = str.Id.ToString();

arr[i].child = str.Child.ToString();

arr[i].name = str.Name.ToString();

arr[i].father = str.Father.ToString();

tn[i] = new TreeNode(str.Id);

tn[i].Text = str.Name.ToString();

}

i+=1;

}// end while

} //end setlist

public void createtree()

{     AddAllChildren(arr[0], 0);    }  ---------------------------------------------------------line01

 

public void AddAllChildren( person[] arr , int parentIndex ) {

for (int childIndex = parentIndex+1; childIndex < arr.Length; ++childIndex){

if( arr[childIndex].father == arr[parentIndex].id ) {

tn[parentIndex].Nodes.Add(tn[childIndex]);

AddAllChildren( arr[childIndex], childIndex );-----------------------------------------line02

}    }     }     }    }

 

but i got this msgs:

 Error 102 The best overloaded method match for 'Fulltree.Form1.AddAllChildren(Fulltree.Form1.person[], int)' has some invalid arguments 

Error 103 Argument 1: cannot convert from 'Fulltree.Form1.person' to 'Fulltree.Form1.person[]' 

Error 104 The best overloaded method match for 'Fulltree.Form1.AddAllChildren(Fulltree.Form1.person[], int)' has some invalid arguments 

Error 105 Argument 1: cannot convert from 'Fulltree.Form1.person' to 'Fulltree.Form1.person[]' 

 thanks for all