private bool WalkTreeValidation(ItemCollection treeViewItems) { bool validError = false; foreach (TreeViewItem node in treeViewItems) { object objTxtBox = node.FindName("orderNum"); if (null != objTxtBox) { TextBox txtBox = (TextBox)objTxtBox; txtBox.GetBindingExpression(TextBox.TextProperty).UpdateSource(); validError = Validation.GetHasError(txtBox); if (!validError && node.HasItems) validError = validError || WalkTreeValidation(node.Items); } } return !validError; }
rtn = WalkTreeValidation(myTree.Items);
var
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