tree controls has me stumped!

[Joe_John]

I'm pretty new with tree controls so please bare with me. I'm trying to create a tree using an array. Each coloum represents a parent and the last coloum is the child. There are a number of entries that have the same parent. When I run my vi, it creates a new parent with the same name. I want to add the enty to the exsisting parrent. See the attached vi. Hope someone can help!

[PaulG.]

I hope someone can give you a better answer. I don't have LV 2009 so I can't look at your code. 

Tree controls are not very intuitive. I had some difficulty with them. Then I discovered the Tree Controls API at LAVA. Give these a look. I found them to be quite helpful.

[TCPlomp]

If you creat an element in a tree (with Add item), a tag is returned. Use this tag to create children, you can input it on the 'Add Item'.

Ton

[robweaver · Accepted solution]

Try the attached vi, I think it's what you were trying to accomplish. The problem you were having was becuase you were adding items that already existed in the tree, so labview forces their item tags to <Item>_1, <Item>_2, etc. In the attached vi you'll see I check if the current item already exists, if it does, I don't add it. I also build the child tags as <col1>_<col2>_<col3>_... for each row so that I can check if the same element already exists. Hope this is what you were looking for!

-RW