public override void undo()
{
// Add the child back under the parent node
if ((mParentNode != null) && (mDeletedNode != null))
{
TreeNode parentTreeNode = findTreeNode(mParentNode);
TreeNode deletedTreeNode = mDeletedNode.createTreeNode();
mParentNode.insertChild(mDeletedNodeIndex, mDeletedNode);
parentTreeNode.Nodes.Insert(mDeletedTreeNodeIndex, deletedTreeNode);
// Update parent tree node text
mParentNode.updateTreeNodeText(parentTreeNode);
// Expand parent node, and expand all child node
parentTreeNode.Expand();
deletedTreeNode.ExpandAll();
}
}
public override void redo()
{
// Add the child back under the parent node
if ((mParentNode != null) && (mAddedNode != null))
{
TreeNode parentTreeNode = findTreeNode(mParentNode);
TreeNode addedTreeNode = mAddedNode.createTreeNode();
mParentNode.addChild(mAddedNode);
parentTreeNode.Nodes.Add(addedTreeNode);
// Update parent tree node text
mParentNode.updateTreeNodeText(parentTreeNode);
// Expand parent node, and expand all child node
parentTreeNode.Expand();
addedTreeNode.ExpandAll();
}
}
