How to delete nodes in treeview with the same attribute value

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Hello ,

Am working on winForm application , I browse an XML file to a TreeView. Then I want to delete some nodes , actually i can select one node then delete it.
My question/problem is :
I have another nodes with the same attribute value

XML

<object id="100" name="toto">
  <child id="1200"/>
  <child id="1300"/>
<object/>
<object id="1200" name="toto"/>

I want to select and delete the object with the id = 1200 , then it's delete also the child with the id =1200.
It's an exemple , so globaly i want to delete all node having the similar id attribute value as the node selected.
it's possible ? if yes how ? can u help me to start this plz :)

Posted 24-Nov-14 23:31pm

Member 11192477

Updated 25-Nov-14 2:14am

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BillWoodruff 25-Nov-14 9:28am

You want to delete Nodes from the TreeView at run-time ... or, you want to delete objects in the Xml and re-load the TreeView ? Are you using a sub-classed TreeNode that contains a field named 'id, or are you assigning the value of 'id in the Xml to the TreeNode's Tag property ?

Member 11192477 25-Nov-14 10:03am

I want to delete Nodes from TreeView , then i save the new state of treeview in the existing xml file or a new one , i think is the same think if i delete directly from the xml file.
I browse the XML file in my treeview

BillWoodruff 25-Nov-14 16:31pm

Okay, what is the linkage between a given node and its "id" and/or "name" property ? Are you storing that information in the TreeNode's .Tag property, or do you have something like a Dictionary where the Key is the TreeNode, and the Value an instance of a Class, or Struct, or a generic List of attributes ?

Are you using LinqToXml to parse the Xml into some kind of data structure ?

What you want is very easy to achieve, I think, but without knowing the "mapping" of Nodes to attributes, there's no point in making a guess about the solution.

Well, yes, if you modified the Xml, cleared the TreeNodes, and re-built the Tree, that would work, but that's doing it the hard way.

John C Rayan 19-Feb-15 11:13am

if you want to try it on xml then you could use xpath //*[@id='1200']. It will select all elements from all levels that match id=1200

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How to delete nodes in treeview with the same attribute value

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