Hi all I have a treeview with multiple levels and would like to know how to build move next and previous buttons to navigate thru the treeview.

Any help would be great.

 thanks

l0n3i200n

Hi l0n3i200n,

l0n3i200n:

would like to know how to build move next and previous buttons to navigate thru the treeview.

We could not get your requirment  exactly, do you want to add button on the treeview's nodes? Could you please post some details or some "for instance"?

I have a treeview in a panel on the left and in the right I'm displaying the info of the treenode. I want the user to be able to click on the  [Next >>] or [<<Previous] buttons I plan to place in the bottom right hand corner of the right panel. These buttons should then either move the selected node to the next or previous node without clicking on the tree. Also the nodes have about at most 3 levels each.

 Please let me know it it makes sense.

Hi,

let's make some clarification: you added the [Next>>] and [<<Preview] buttons to the bottom of the right panel.

But when you click on the [<<preview] button, you want to show the information of the parent node of the current node? or the previous node of the current node?

And when you click on the [Next>>] button, what you do you want to display? the clildnode of the current node or the other nodes that are at the same level of the current node?

Correct when I click [<<previous] and the node is the 1st node under the parent, it should then show the parent, else it should just move one above itself. When I click next it needs to display then next node in the same level ( going down the tree). Or if it is at the end of a leaf node it should then move down to the next parent node. ( movement next = down the tree, and movement previously is up the tree)

Hi,

Ok, you can try to retrieval the treenodes according to the current node.

l0n3i200n:

when I click [<<previous] and the node is the 1st node under the parent, it should then show the parent, else it should just move one above itself.

When you click on the  [<<previous]  button, you can find the parent node of the currentnode, if its parentnode is null, display itself.

l0n3i200n:

When I click next it needs to display then next node in the same level ( going down the tree). Or if it is at the end of a leaf node it should then move down to the next parent node.

When you click on the [Next>>] button, try to retrieval the childnodes of the current node's parent node, if the current node is last leaf node, you can try to find the  brother node of current node's parentnode.

You can use the findnode method to retrieve the TreeNode object in the TreeView control at the specified value path. you can refer his msdn article: http://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.treeview.findnode.aspx

Hope it helps.

Thanks for the help Amanda, will try it out and post my findings as soon as I'm done trying the above solution.