private void txtTargetName_TextChanged(object sender, EventArgs e)
{
TextBox txtSender = (TextBox)sender;
TreeNode asmStorageAccountNode = (TreeNode)_ArmStorageAccountNode.Tag;
StorageAccount asmStorageAccount = (StorageAccount)asmStorageAccountNode.Tag;
asmStorageAccount.TargetName = txtSender.Text;
_ArmStorageAccountNode.Text = asmStorageAccount.GetFinalTargetName();
PropertyChanged();
}