如何从列表视图中获取所选项目的索引

问题描述：

大家好，

每当我尝试从列表视图中获取所选项目的索引时，第一次就选择了索引，但是第二次每当我从列表视图中选择某些特定项时，就会发生错误，指出参数无效，索引的值为0无效"

我的意思是说可以一次选择，但是第二次我不能从列表视图中选择项目..

例如... ...我在表单上的a上使用了listview控件...将3个项目设为hi，hello和world. MessageBox.Show(选择的索引是" + listView1.SelectedIndices [0]);在selectedindexchanged事件上，因此每当我选择一个项目时，消息框就会出现，但是下次我选择任何其他项目时，都会出现错误提示.."InvalidArgument ="0"的值对于"index"无效. /> 参数名称:索引"

我的意思是说我希望我可以从列表视图中选择任意多次.

有人可以帮助我吗....

hi all ,

whenever i try to get the index of the selected item from the listview , for the first time the index gets selected but second time whenever i select some particular item from listview then error occurs stating "Invalid argument , value of 0 is not valid for index "

I mean to say one time selection is possible but second time i cannot select the item from the listview..

For instance ... I took a listview control on a on the form ... put 3 items hi , hello , world ... now i put a statement
MessageBox.Show("selected index is " +listView1.SelectedIndices[0] ); on the selectedindexchanged event so whenever i select an item messagebox does come but next time whenever i select any other item an error flashes stated .."InvalidArgument=Value of ''0'' is not valid for ''index''.
Parameter name: index"

I mean to say that i want that i can select any number of times a single item from the listview .

CAN anybody help me with that ....

答

//Assign few data on OnInit to the List
BOOL CLEDDlg::OnInitDialog()
{
m_ctrlListData.AddString("Red");
m_ctrlListData.AddString("Blue");
m_ctrlListData.AddString("Yellow");
...
...
}
/// Write the below code on click of a button

CLEDDlg::OnButton()
{
int n = m_ctrlListData.GetCurSel();
CString szTemp;
szTemp.Format("%d",n);
AfxMessageBox(szTemp);// to display the index selected
}

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如何从列表视图中获取所选项目的索引

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