private void frmSpreadsheetControl_ParentChanged(object sender, EventArgs e)
{
if (parent != null)
{
parent.Merge -= new RibbonMergeEventHandler(parent_Merge);
}
MdiClient parentClient = Parent as MdiClient;
if (parentClient == null)
{
return;
}
RibbonForm form = parentClient.FindForm() as RibbonForm;
if (form == null)
{
return;
}
parent = form.Ribbon;
parent.Merge += new RibbonMergeEventHandler(parent_Merge);
}