how the child nodes will be selected in tree view if i selected the parent node

Question

hi all...

i have the treeview in win form which is dynamically loaded. In this treeview, I will get checkboxes along with each node...

now, If i selected the parent node then the childnodes under the selected nodes should also be selected.

how to write code for this. please suggest me

thank you

R J · Answer

hi... I wrote the code for this as below but some logic is missed. How to add that logic please let me know.. or you can give me your own code ------------------------------------------------- Boolean bChildTrigger = true; Boolean bParentTrigger = true; private void trView_AfterCheck(object sender, TreeViewEventArgs e) { if (bChildTrigger) { CheckAllChildren(e.Node, e.Node.Checked); } if (bParentTrigger) { CheckMyParent(e.Node, e.Node.Checked); } } void CheckAllChildren(TreeNode tn, Boolean bCheck) { bParentTrigger = false; foreach (TreeNode ctn in tn.Nodes) { bChildTrigger = false; ctn.Checked = bCheck; bChildTrigger = true; CheckAllChildren(ctn, bCheck); } bParentTrigger = true; } void CheckMyParent(TreeNode tn, Boolean bCheck) { if (tn == null) return; if (tn.Parent == null) return; bChildTrigger = false; bParentTrigger = false; tn.Parent.Checked = bCheck; CheckMyParent(tn.Parent, bCheck); bParentTrigger = true; bChildTrigger = true; } ---------------------------------------------------------------- when I selected the parent node, automatically the child nodes are selected and the root node is also selected. But the problem is when I deselect the any one of the selected child nodes then the Parent node and Root node are also getting deselected state even some child nodes are already in selected state. please solve this problem thank you

Koteswararao Mallisetti · Answer

create one recursive function which take a tree node as agrument with this recursive function go through all the child nodes of selected node i was worked on the same issue 1 month back if you don't get the solution up to the morning reply me i will give the entire code.... Bye.

how the child nodes will be selected in tree view if i selected the parent node

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