preventing c# listview items from disappearing

Question

I have a ListView in a form in c#. There was info about an error in the ListView implementation that causes the items to disappear the first time the mouse hovers over the ListView, and there is a solution to prevent that which works fine. However, my ListView updates the data at 1 Hz and it looks like every time it updates, the items will disappear when the mouse hovers over the ListView. Is there any way to prevent this happening? The solution that works only works when the data displayed in the ListView is static. And if I stop updating, the solution will work.

Answer 1

Hi @genush , Welcome to Microsoft Q&A,

You can temporarily disable ListView during the update process to prevent mouse events from interfering with the update. You can set Enabled = false before the update and restore it after the update:

listView1.Enabled = false;

listView1.Items.Clear();
foreach (var item in newData)
{
    listView1.Items.Add(new ListViewItem(item));
}

listView1.Enabled = true;

If it doesn't work, please provide a minimal reproducible example Best Regards,

Jiale

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