Treeview root node to last before child node path

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1.00/5 (1 vote)

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.NET3.5

D1 1____D4
1 1_____D5
1 1 1_____D7
1 1 1_____D8
1 1
1 1_____D6
1 1 1_____D9
1 1
1 1_____D7
1
D2
1____D12
1 1_____D10
1 1_____D11
1
1_____D15
1 1____D16
1 1____D17
D3
1_____D12
1_____D13

Hai to all..
this is the example of treeview now i want path
i.e out put shoud have to like this...

D1//D4//D5//D6//D7
D1//D4//D6//D9
D1//D4//D7
D2//D12//D10/D11
D2//D15//D16//D17
D3//D12//D13
This is required out put...

can anybody please help me....

Posted 23-Feb-11 21:28pm

ajitha.pusapati

Updated 1-Aug-18 17:50pm

v2

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Comments

MarqW 24-Feb-11 3:34am

Your output confuses me - D1//D4//D5//D6//D7, D7 is not a child of D6. Did you type your example out wrong?

ajitha.pusapati 24-Feb-11 4:47am

up to D6 i got the path. but my requirement is D5 has chils D6 and D7. and D6 and D7 does have childs.
that why...

Sandeep Mewara 24-Feb-11 3:41am

What effort have you made?

ajitha.pusapati 24-Feb-11 4:47am

in c#.net windows forms

[no name] 24-Feb-11 3:44am

can you be more specific and for this what code you have written so for and what error it shows?

ajitha.pusapati 24-Feb-11 5:05am

private void button2_Click(object sender, EventArgs e)
{

ArrayList finalTVStrings = new ArrayList();

TreeNodeCollection nodes = tvAllData.Nodes;
for (int i = 0; i <= nodes.Count-1;i++)
{

// Select the root node
TreeNodeCollection Cnodes = tvAllData.Nodes[i].Nodes;
if (Cnodes.Count > 0)
{
//tvAllData.SelectedNode = Cnodes[0];
for (int j = 0; j <= Cnodes.Count - 1; j++)
{
TreeNodeCollection SCnodes = tvAllData.Nodes[i].Nodes[j].Nodes;
if (SCnodes.Count > 0)
{
for (int SC = 0; SC <= SCnodes.Count - 1; SC++)
{
TreeNodeCollection Sensornodes = tvAllData.Nodes[i].Nodes[j].Nodes[SC].Nodes;
if (Sensornodes.Count > 0)
{
for (int Sen = 0; Sen <= Sensornodes.Count - 1; Sen++)
{

tvAllData.SelectedNode = Sensornodes[Sen];
//MessageBox.Show(tvAllData.SelectedNode.FullPath, "Final");
MessageBox.Show(Sensornodes[Sen].Text, "Sensors");
finalTVStrings.Add(tvAllData.SelectedNode.FullPath);

}
}
else
{
tvAllData.SelectedNode = SCnodes[SC];
// MessageBox.Show(tvAllData.SelectedNode.FullPath);
MessageBox.Show(SCnodes[SC].Text, "SubChild");
finalTVStrings.Add(tvAllData.SelectedNode.FullPath);
}
}
}
else
{
tvAllData.SelectedNode = Cnodes[j];
// MessageBox.Show(tvAllData.SelectedNode.FullPath);
MessageBox.Show(Cnodes[j].Text, "SChild");
finalTVStrings.Add(tvAllData.SelectedNode.FullPath);
}
}
}
else
{
tvAllData.SelectedNode = nodes[i];
//MessageBox.Show(tvAllData.SelectedNode.FullPath);
MessageBox.Show(Cnodes[i].Text, "Child");
finalTVStrings.Add(tvAllData.SelectedNode.FullPath);
}

}

}

ajitha.pusapati 24-Feb-11 5:07am

this is my code this out put is
D1//D4//D5//D6
D1//D4//D5//D7
but my requirement is D1//D4//D5//D6//D7

Fredrik Bornander 24-Feb-11 4:49am

I've provided an answer, can you please let me know if it is what you were looking for?

ajitha.pusapati 24-Feb-11 5:04am

thanks for ur replay. i got the path upto last child node. this out put is not currect.
my desired out put is D1//D4//D5//D6//D7
D5 has two childs.

2 solutions

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Fredrik Bornander · Answer 1 · 2011-02-23T21:49:00

I am assuming you're talking about WinForms TreeView?
In that case, try something like this;

C#

private string GetPath(TreeNode node)
{
    string path = "";
    for (TreeNode iterator = node; iterator != null; iterator = iterator.Parent)
    {
        path = String.Format("{0}//{1}", iterator.Name, path);
    }
    return path;
}
private void FindPaths(TreeNodeCollection nodes, 
                       IDictionary<TreeNode, string> paths)
{
    foreach (TreeNode node in nodes)
    {
        if (node.Nodes.Count == 0)
            paths[node] = GetPath(node);
        else
            FindPaths(node.Nodes, paths);
    }
}
private void some_click_event(object sender, TreeViewEventArgs e)
{
    IDictionary<TreeNode, string> paths = new Dictionary<TreeNode, string>();
    FindPaths(treeView.Nodes, paths);
}

The paths dictionary will contain all the paths with their leaf node as key.

Hope this helps,
Fredrik

Member 13934840 · Answer 2 · 2018-08-01T17:50:00

Solution 2

In order to get "D1//D4//D5//D6//D7"
User this code : [TreeView name].PathSeparator = "//"
thats it'.

Posted 1-Aug-18 17:50pm

Member 13934840

Comments

Dave Kreskowiak 2-Aug-18 0:01am

You're only SEVEN YEARS too late and your answer doesn't solve the problem.