How to change text of ListViewItem

[bthetford]

I have a ListView with 4 columns that shows in details mode.

How do I change the text of one of the columns of a specific item if I
know the index I want to change at?

mylistview.Items[index].Tag
returns a null reference exception if I attempt to use it.

I am displaying data that changes in real time and needs to have
certain columns update when a separate thread invokes an
UpdateMyColumn(int index, string newText) method on the form.

Should I be using a different control, instead?

 

[Ashot Geodakov]

ListView listView;

listView.Items[index].SubItems[index1].Text = "your text";

 

[bthetford]

Strange.
I used to get a nullreferenceexception out of that, as well.
I must have had an off-by-one error.

Thanks.

 

[Ashot Geodakov]

Well, there must be no SubItems added to the ListItem.Subitems collection.

It's not enough to just create columns in the ListView. For each added item
you need to

ListView.Items[index].SubItems.Add( "lalala" );

Then you can change their text as described.