Develop Reference

Add a usercontrol to a treeview

Im creating a user control, for searching a treeview.
I would like to add the usercontrol to the top of the treeview.
I can achieve this by treeview.controls.add(mycontrol);
However my user control i placed on top of the tree and hidding parts of the tree. Can I somehow change placement of the tree inside the treeview. Or do i need another approach?
Just to clearify I do not want the usercontrol to be a part of the tree. I only want to display it on the top of the treeview

Is there a way to insert images to a TreeView node label?

I would like to insert an image to a TreeView node label. I can't use the node's icon because it's already used for other purposes. The other solution would be the ability to have 2 icons per node.

I suggest to expand TreeNode by some Image SecondIcon property, add collection of them to your TreeView and then subscribe to TreeView.DrawNode event.
Here you can find some more hints and example: http://msdn.microsoft.com/en-us/library/system.windows.forms.treeview.drawnode.aspx.

Winforms treeview refresh issue

I followed the following tutorial (answer) to create a treeview which is bound to datatase, the only exception being that I have my treeview in a user control.
Populate WinForms TreeView from DataTable
My problem is that after adding a new node or child node the tree doesn't get updated. I have tried to refresh, expandall etc the tree but still doesn't show the newly added node. Bear in mind it is in usercontrol and I'm adding new nodes from parent form.

You might try TreeView.BeginUpdate() and TreeView.EndUpdate() methods as well, before and after the responsible code for altering nodes to your treeview.

Adding the check boxes in the TREEVIEW in c#

i want to add the check box to the child node of a certain parent node in the tree view in my application...How should i add it?

TreeView has a property with the name CheckBoxes, if set to true, it shows checkboxes for all child nodes.

The TreeView API only allows you to add/remove checkboxes for EVERY node. If that's what you want, then the answer is easy - use the TreeView's CheckBoxes property.
If you want a checkbox for a particular node in the tree only, then it gets tricky. .NET doesn't directly support that. You can get the tree to accept it using Win32 message overrides, see the link below for a solution elsewhere:
http://dotnetfollower.com/wordpress/2011/05/winforms-treeview-hide-checkbox-of-treenode/

You can't show checkboxes only for some TreeNodes - only for all of them or none at all.
To enable the checkboxes for your tree set the CheckBoxes property to true.

How to generate a treeview in ASP.NET?

How to generate a tree view in asp.net?
In my asp.net project i need a tree view like structure, the format given below
alt text http://dev1.ispg.in/dg/untitled.bmp

ASP.NET does have a TreeView control that you can use to display a Treeview very similar to the one you show.
If you require the Checkboxes on each and every Treeview node, but sure to set the ShowCheckBoxes attribute to the appropriate setting (i.e. ShowCheckBoxes="All">
Regarding the nodes themselves, you can bind the TreeView to a DataSource which can either be an ASP.NET SiteMap file or an XML Document. Alternatively, you can programmatically add the nodes yourself in code like so:
TreeNode tn = new TreeNode();
tn.Value = "Cities";
TreeView1.Nodes.Add(tn);
tn.ChildNodes.Add(new TreeNode("Cochin 1"));
[etc. etc.]
Some other useful links are:
Using the TreeView Control and a DataList to Create an Online Image Gallery
ASP.NET Treeview Quickstart Tutorial

use the asp.net treeview , have a look here everything is explained