PdfViewer - Select Pdf from TreeView

Hi,

I'm using a Treeview with  ShowCheckBoxes="All" , so basically I have a tree with all CheckBox Nodes. I'm using the TreeView inside an update panel, and populate the Tree code behind dynamically.

My requrements are the following:

1) Select all the children if parent is selected,

2) When parent is selected, and if we de-select a child, set parent unselected

3) Track if new nodes were selected and previously selected nodes were de-selected (becasue I need to update the database according to the selections in the Tree)

For above 1, I do the following:

protected void TreeView1_TreeNodeCheckChanged(object sender, TreeNodeEventArgs e)
    {
        foreach (TreeNode node in TreeView1.Nodes)
        {
            TreeNodeCollection col = node.ChildNodes;
            //select all children when the parent is checked
            if (col != null && node.Checked)
            {
 &nb

<TreeView Name="tvOutput" ItemsSource="{Binding}" Height="200" VerticalAlignment="Top" MouseMove="tvOutput_MouseMove" DragLeave="treeView_DragLeave" SelectedItemChanged="Tree_SelectedItemChanged">
                        <TreeView.ItemContainerStyle>
                                <!-- This Style binds a TreeViewItem to a Node. -->
                                <Style TargetType="{x:Type TreeViewItem}">
                                    <Setter Property="IsEnabled" Value="{Binding IsEnabled, Mode=TwoWay}" />
                                    <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}" />
                                    <Style.Triggers>
                                        <Trigger Property="IsEnabled" Value="True">
                                            <Setter Prop

I can’t understand why whoever implemented the TreeView implemented it such a way that it is impossible to easily extend to support multi selection (actually, why didn’t they add it to begin with????).

I was looking at how to implement this in my TreeView derived base class and implement it in a way that would not require any style or template changes per tree. I have spend some time looking at the implementation using Reflector, and it seems to me that ‘if only’ the TreeView.ChangeSelection had been exposed as a virtual method instead of internal, then it would have been possible to ‘hack’ it, but unfortunately this is not the case.

So – after a lot of searching I have not been able to find any solution which would require code changes only. Is it possible at all?.

Hello.
How do i loop through the child & grand nodes of a treeview which is populated via XML?

I can successfully loop through parent nodes but can not child & grand child.What i have to do is loop through all the nodes and select the matched node

Thanks,

Hi, I am new to gridview. I want to make a gridview. Its row when selected should direct me to a specific .aspx page.Each row should direct to a different page. Should I use querystrings for this? Please suggest. Regards, ap.

Hi there,

I developed a page where i m using jquery treeview plugin to generate tree. It worked fine on FF, IE8 with out ajax.

But when my page loads thro' ajax call in IE8, it is not collapsing or expanding tree.

Any idea?

Thanks in advance.

Aaron Skonnard

MSDN Magazine October 2003

This month Aaron Skonnard covers how keys work in XSLT, XSLT match and select attributes, SelectNodes order, finding