A refresh button

 void main: : OnBnClickedButton1 () 
{
m_list.DeleteAllItems(); 
M_list. SetExtendedStyle (m_list. GetExtendedStyle () | LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES); 
//initialize 
Cstrings field []={TEXT (" serial number "), TEXT (" product name "), TEXT (" food price "), TEXT (" remaining quantity ")}; 

for(int i=0; i{
M_list. InsertColumn (I, field [I], LVCFMT_CENTER, 100); 
} 

Cinfo file; 
File. ReadDocline ();//read information 
int i=0; 
Cstrings STR. 
For (list It=file: : iterator. Ls. The begin (); It!=file. Ls. End (); It++) 
{
STR. The Format (TEXT (" % d "), it - & gt; Id); 
M_list. InsertItem (I, STR);//initialize 
Int column=1; 
M_list. SetItemText (I, column++, (cstrings) it - & gt; Name. C_str ()); 
STR. The Format (TEXT (" % d "), it - & gt; Price); 
M_list. SetItemText (I, column++, STR); 
STR. The Format (TEXT (" % d "), it - & gt; Num); 
M_list. SetItemText (I, column++, STR); 

M_list. SetItemData (I, I);//used to store the sorting keywords 
i++; 
} 


} 

In the first row, first add data clearly, don't know why no effect

CodePudding user response:

Is inserted before the data are still there

CodePudding user response:

Refer to Microsoft daoview example

CodePudding user response:

CListCtrl: : DeleteAllItems
BOOL DeleteAllItems ();

The Return Value

Nonzero if successful; Otherwise zero.

Few

Call this function to delete all the items from the list view control.

BOOL ret.=m_list DeleteAllItems ();

if(! Ret) AfxMessageBox (" DeleteAllItems Failed!" );

CodePudding user response:

DeleteAllItems just delete data items, the title bar through the CHeaderCtrl

 
CHeaderCtrl. * pHeadCtrl=mListCtrl GetHeaderCtrl (); 
While (pHeadCtrl & amp; & PHeadCtrl - & gt; GetItemCount () & gt; 0) 
{
PHeadCtrl - & gt; Called DeleteItem (0); 
} 

CodePudding user response:

Initialization time set header, column width and form control properties
Press the button to populate the data again, CListCtrl: : DeleteAllItems () can't delete the header

CodePudding user response:

Can modify headers can also use a CListCtrl: : SetColumn