Pfthb

Currently I am working on a listcontrol,where the first column header should consists of a checkbox.Adding checkbox to the list items can be done by setting the style to LVS_EX_CHECKBOXES.Is there any way to add checkbox to the header so that if I check it all the items in the list should get checked and if I uncheck it all the list items should get unchecked.

Can anyone please let me know any possible way of doing so.

Follow the below steps to get the checkbox on the header and using that checkbox on the header we can check and uncheck all the items in the list.

In the OnInitDialog() Add this below piece of code:

BOOL OnInitDialog()
 LVCF_TEXT 

Add this event HDN_ITEMSTATEICONCLICK

 void CMFPSearchListView::OnHdnItemStateIconClickListctrl(NMHDR *pNMHDR, LRESULT *pResult)

 LPNMHEADER pNMHeader = (LPNMHEADER)pNMHDR;

 // first determine whether the click was a checkbox change
 if (pNMHeader->pitem->mask & HDI_FORMAT && pNMHeader->pitem->fmt & HDF_CHECKBOX)
 
 // now determine whether it was checked or unchecked
 BOOL bUnChecked = pNMHeader->pitem->fmt & HDF_CHECKED;

 // apply check state to each list item
 for (int nItem = 0; nItem < m_listCtrl.GetItemCount(); nItem++)
 m_listCtrl.SetCheck(nItem, !bUnChecked);
 


 *pResult = 1; //if pResult = 0 then you will get blue color selection on the items when you check header checkbox , in order to avoid that I made pResult = 1; Now we won't face the selection issue.
 

//Add LVN_ITEMCHANGED

void OnListViewItemchanged(NMHDR *pNMHDR, LRESULT *pResult)
 LVCF_WIDTH 

Note:This header checkbox will work from above Windows XP Operating system.

The accepted answer was very helpful, but using LVCOLUMN did not worked well for me.

so I found out using HDITEM working better for me:

CHeaderCtrl* pHeaderControl = m_ListControl.GetHeaderCtrl();

HDITEM hdi = 0 ;
hdi.mask = HDI_FORMAT;
pHeaderControl->GetItem(0, &hdi);
hdi.fmt |= HDF_CHECKBOX;

if (bAllChecked)
= HDF_CHECKED;

else

 hdi.fmt &= ~HDF_CHECKED;

pHeaderControl->SetItem(0, &hdi);