Delete node in treeview with the same attribute value

Question

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 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

Vulpes · Answer

If the file is not very big it might be easiest to delete the nodes from the xml file clear the TreeView and then rebind it to the file with whatever code you're currently using. Here's some LINQ to XML code (in console app form) which shows how you can delete all nodes which have an 'id' attribute with a given value: using System; using System.Linq; using System.Xml.Linq; class Program { static void Main() { XElement xml = XElement.Load(Nbl_Bz.xml); Console.WriteLine(Before deletions
); Console.WriteLine(xml); string value = 1200; // or whatever xml.Descendants().Where(e => e.Attribute(id) != null && e.Attribute(id).Value == value).Remove(); Console.WriteLine(
After deletions
); Console.WriteLine(xml); xml.Save(Nbl_Bz.xml); // if you want to overwrite existing file Console.ReadKey(); } }