Create ListViewItem with a function

Question

I tried to create a function that creates a ListViewItem and put it in my ListView, but when I use it the second time it just overwrites the first item.

This is the function:

ListViewItem lvi = new ListViewItem(taskName2);
lvi.SubItems.Add(DateTime2);
lvi.SubItems.Add(More2);
listView1.Items.Add(lvi);

How can I do it without overwriting the first item? Is there is a array of ListViewItem or something?

its simple call ` public Form1(string taskName1,string DateTime1,string More1,bool startworkign) { InitializeComponent(); taskName2 = taskName1; DateTime2 = DateTime1; More2 = More1; if(startworkign) { StartWorking(); } }` its called every time the form started — zomry1
– zomry1, Commented Sep 19, 2015 at 21:13

Krikor Ailanjian · Accepted Answer · 2015-09-20 20:49:21Z

1

You need to create a new, separate object for each item in the list, you are adding a pointer to the same object. For example, if you put that whole block in a for loop it should work.

List<ListViewItem> listViewItemHandles = new List<ListViewItem>();
for(int i = 0; i < 10; i++)
{
    ListViewItem lvi = new ListViewItem(taskName2);
    lvi.SubItems.Add(DateTime2);
    lvi.SubItems.Add(More2);
    listView1.Items.Add(lvi);

    listViewItemHandles.Add(lvi);
}

edited Sep 20, 2015 at 20:49

answered Sep 19, 2015 at 20:54

Krikor Ailanjian

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7 Comments

zomry1 Over a year ago

yes I know I have a counter for my items but I don't know how to add a pointer to the item name to create a separate object. something like: ListViewItem lvi + counter = new ListViewItem(taskName2) I know I should do that but how? how I can add my count to the name of the item?.

Krikor Ailanjian Over a year ago

I don't fully understand why you need a count. If you want handles to the items, store the objects you create in an array.

Krikor Ailanjian Over a year ago

I made an example with a List<T> since it is more flexible and probably better for your purposes.

zomry1 Over a year ago

you don't understand me sorry.I meant that every time the function works the function create a new item and put it in the listview but in the second time the function works he overwrite the item that created and made in the first time. I don't want to create multiple items in one function work. I just want to create a new item every time the function works

Krikor Ailanjian Over a year ago

Then put the code block in a function, it should work.

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