How to clear data from list view in c#

Question

I have a button \"Show data\". When click it, data will display in list view. But I want to clear it and then click \"Show data\" again to display new data. Because I don\'t

Answer 1

While making windows store app write:

listview.Items.Clear();

Just listview.Clear(); won't work in windows store app

Answer 2

listView1.Items.Clear();

Clears in 2008 c# column headers with the data, if you have multiple ListView on the same form the best way is writing a method such as (suggested by Lasse as above)

private void ClearLvItems(ListView li)
{
   while(li.Items.Count>1)
      li.Items.RemoveAt(1); 
}

Or if it does not work as expected as it does not work with me (one row still rests in Listview)

 listView1.Items.Clear();
 SetHeaders(li); // If you have more then one ListView in the same form. Otherwise don't use the parameters.

 private void SetHeader(ListView li)
 {
   string[] header_names = new string[] {"Id","Name","SurName","Birth Date"};
    int i = 0;
    foreach (ColumnHeader ch in li.Columns) 
    {
        ch.Text = header_names[i];
        ++i;
    }
 }

Another discussion is Here

Answer 3

ListView.Clear Method removes all items and columns from the control.

The following are some articles that may help you working with ListView and DataGridView controls:

ListView @ C# Online.Net

Working with Data—Using the DataGridView

Answer 4

    foreach (ListView item in listview.Items)
    {
        ListView.Items.Remove(item);
    }

or

    ListView.Clear();

Answer 5

What about the following?

ListView lv = new ListView();
while (lv.Items.Count > 1) {
    //leave the header
    lv.Items.RemoveAt(1);
}

Answer 6

In WinForms:

listView1.Clear();

In WPF:

listView1.Items.Clear();