CListCtr:SetItem(LVITEM*)操作失败,该怎么解决

CListCtr::SetItem(LVITEM*)操作失败
各位大侠，我在应用列表控件时，发现CListCtr::SetItem(LVITEM*)函数问题操作失败，下面是代码，请各位帮忙看一下。
LVITEM lvi={0};
CString strItem;
for(int i=0;i<m_nDyeStep.GetCount();i++)
{
  // Use the LV_ITEM structure to insert the items
  // Insert the first item

  vi.mask = LVIF_IMAGE | LVIF_TEXT | LVIF_PARAM;
  strItem.Format("第%d步:",i+1);

  lvi.iItem = m_nStepNum;
  lvi.iSubItem = 0;
  lvi.pszText = (LPTSTR)(LPCTSTR)(strItem);
  lvi.iImage =-1;// There are 13 images in the image list
  lvi.lParam=100*i;
  m_CDetail.InsertItem(&lvi);

  // Set subitem 1
  strItem=_T("");
  lvi.iSubItem =1;
  lvi.pszText = (LPTSTR)(LPCTSTR)(strItem);
  lvi.iImage = -1;
  m_CDetail.SetItem(&lvi);//问题就出在这个地方!!!!!!!
}


[解决办法]
m_CDetail.SetItem(&lvi);之前加一行lvi.mask = LVIF_IMAGE | LVIF_TEXT;试试。