OnGridEndEdit and MessageBox

[adonisv]

I'm throwing up a message box inside the OnGridEndEdit function of a CGridCtrl object. I want to inform the user that a duplicate name has been entered and a unique one must be supplied. However, after the message box is clicked on, the cursor highlights cells in the grid control and its a wierd side effect. Any suggestions? Here is the code: void RDialogForEditingCanalObjects::OnGridEndEdit(NMHDR *pNotifyStruct,LRESULT* pResult) { bool bAcceptChange = false; CGridCellBase* pRow = NULL; NM_GRIDVIEW* pItem = (NM_GRIDVIEW*) pNotifyStruct; if (this->m_eCanalObjectType != CO_SSFC) { if (pItem->iRow == 1 && pItem->iColumn == 1) { pRow = this->m_PrimaryGrid.GetCell(pItem->iRow,pItem->iColumn); if (pRow) { switch(this->m_pCanMan->IsNameUnique(pRow->GetText())) { case 0: Beep(999,189); Beep(999,189); MessageBox("Please enter a unique name for this object", "Duplicate Naming Error!",MB_OK); bAcceptChange = FALSE; break; case 1: bAcceptChange = TRUE; break; } } } } }