how to add listbox items in listview in asp.net using C#

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My code as follows

C#

    private void Form1_Load(object sender, EventArgs e)
      {
        listBox1.Items.Add("have a nice day");
        listBox1.Items.Add("nice day");
        listBox1.Items.Add("day");
      }

    private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
   {
       foreach (object item in listBox1.Items)
 {
      string km = item.ToString();
      listView1.Items.Add(km);
}
   }

i want to display the Listbox items into Listview.
But my above code is not working showing error as follows;

Argument 1: cannot convert from 'string' to 'System.Web.UI.WebControls.ListViewDataItem
The best overloaded method match for

C#

'System.Collections.Generic.ICollection<system.web.ui.webcontrols.listviewdataitem>.Add(System.Web.UI.WebControls.ListViewDataItem)' has some invalid arguments

what is the problem in my code.

Regards,
Narasiman P.

Posted 24-Dec-13 20:08pm

Member 8054539

Updated 24-Dec-13 20:24pm

Gitanjali Singh

v2

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2013-12-24T20:32:00

You should use ListView[^] of System.Windows.Controls Namespace not System.Web.UI.WebControls.

Refer- Add item to Listview control[^]
For adding one item, you should make an array and then initialize one ListViewItem object.

C#

string[] row = { textBox1.Text, textBox2.Text, textBox3.Text };

var listViewItem = new ListViewItem(row); 
listView1.Items.Add(listViewItem);

Madhav Hatwalne · Answer 2 · 2013-12-24T20:15:00

Solution 1

You declared it as string try to insert data type of ListViewItem

C#

foreach (object item in listBox1.Items)
     {
               
          string km = item.ToString();
          ListViewItem itemToAdd = new ListViewItem(km)
          listView1.Items.Add(itemToAdd);
    }

Posted 24-Dec-13 20:15pm

Madhav Hatwalne

Updated 24-Dec-13 20:31pm

v2