subject_44749.htm

一些关于vc的问答

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序号：44749 发表者：沙漠孤舟 发表日期：2003-06-23 09:33:57
<br>主题：请问怎样获取列表视图被选中的条目？
<br>内容：请问怎样获取列表视图被选中的条目？<BR>用什么函数?<BR>
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回复者：信笺 回复日期：2003-06-23 10:00:57
<br>内容：&nbsp;&nbsp;&nbsp;&nbsp;CString str;<BR>&nbsp;&nbsp;&nbsp;&nbsp;CListCtrl*&nbsp;&nbsp;plist = (CListCtrl*)m_wndShowBar.GetDlgItem(IDC_LIST1);<BR>&nbsp;&nbsp;&nbsp;&nbsp;POSITION pos = plist-&gt;GetFirstSelectedItemPosition();<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (pos == NULL)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;MessageBox("No Gene Selected");<BR>&nbsp;&nbsp;&nbsp;&nbsp;else<BR>&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while (pos)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int nItem = plist-&gt;GetNextSelectedItem(pos);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;str.Format("Item %d was selected!", nItem);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;MessageBox(str);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// you could do your own processing on nItem here<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;}<BR>
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<font color=red>答案被接受</font><br>回复者：无名小卒 回复日期：2003-06-23 10:15:34
<br>内容：用ClassWizard为你的LIST控件添加LBN_SELCHANGE的消息函数OnSelchangeList,添加如下代码即可<BR>void CMyView::OnSelchangeList()<BR>{<BR>&nbsp;&nbsp;int cursel;<BR>&nbsp;&nbsp;cursel = m_ctrlist.GetCurSel();//获得选中的条目号<BR>&nbsp;&nbsp;m_ctrlist.GetText(cursel,m_Selected_ID)//把所获得的条目给变量m_Selected_ID,（其中变量m_Selected_ID是在你的头文件中定义的CStirng类型）这时读取变量m_Selected_ID中的值就行了。
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回复者：NewMonth 回复日期：2003-06-23 11:13:26
<br>内容：又一种简单的方法:<BR>先添加一此列表的响应消息:LVN_ITEMCHANGED<BR>加入代码:<BR>&nbsp;&nbsp;&nbsp;&nbsp;UNIT nIndex=m_ctrList.GetNextItem(-1,LVNI_SELECTED);<BR>nIndex就是列表视图被选中的条目.
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