关于MFC的listctrl

[ujsnxg]

HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, 8992);
MODULEENTRY32 mi;
mi.dwSize = sizeof(MODULEENTRY32); 
BOOL bRet = Module32First(hSnapshot, &mi);
int a = 0;
while (bRet)
{
CString str,str1;
str.Format(L"0x%x", (DWORD)mi.modBaseAddr);
m_ListCtrl.InsertItem(0, str);
m_ListCtrl.SetItemText(a, 1, mi.szExePath);
str1.Format(L"个数:(%d)", a++);//这行的问题
this->SetWindowText(str1);

bRet = Module32Next(hSnapshot, &mi);
}

请问 执行这行代码之后listctrl只显示第一列的数据 其他列为空 如果去掉这一行代码就都正常显示

[schlafenhamster]

a=m_ListCtrl.InsertItem(a, str);
m_ListCtrl.SetItemText(a, 1, mi.szExePath);

[sichuanwww]

[Eleven]

m_list.InsertItem(a, TEXT(""));
m_list.SetItemText(a, 0, ...);
m_list.SetItemText(a, 1, ..);
m_list.SetItemText(a, 2, ...);

CString strText;
        int nColumnCount = m_myListCtrl.GetHeaderCtrl()->GetItemCount();

        // Insert 10 items in the list view control.
        for (int i = 0; i < 10; i++)
        {
            strText.Format(TEXT("item %d"), i);

            // Insert the item, select every other item.
            m_myListCtrl.InsertItem(LVIF_TEXT | LVIF_STATE, i, strText,
                (i % 2) == 0 ? LVIS_SELECTED : 0, LVIS_SELECTED, 0, 0);

            // Initialize the text of the subitems.
            for (int j = 1; j < nColumnCount; j++)
            {
                strText.Format(TEXT("sub-item %d %d"), i, j);
                m_myListCtrl.SetItemText(i, j, strText);
            }
        }