Get multiple selected items in ListBox

Posted by Madhuk under C# category on 12/16/2010 | Points: 40 | Views : 5199

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<asp:ListBox ID="ListBox1" SelectionMode="Multiple"  runat="server">
        <asp:ListItem>one</asp:ListItem>
        <asp:ListItem>two</asp:ListItem>
        <asp:ListItem>three</asp:ListItem>
        </asp:ListBox>

private void GetSelectedItems()
    {
// where str array are the selected list items
        string[] str = { "one", "three" };
        foreach (string item in str)
        {
            for (int x = 0; x <= ListBox1.Items.Count - 1; x++)
            {
                if (ListBox1.Items[x].Text == item)
                { ListBox1.Items[x].Selected = true; }
            }
        }
    }

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Posted by: T.saravanan on: 12/16/2010 Level:Silver | Status: [Member] [MVP] | Points: 10

Hi Madhuk,

Nice Try... But small mistake in your code...Just change it in your code..

 

   for (int i = 0; i <= ListBox1.Items.Count - 1; i++)

    {

         if (ListBox1.Items[i].Text == item) 

          {

            ListBox1.Items[i].Selected = true;  

          }

     }

Cheers :)

Posted by: T.saravanan on: 12/16/2010 Level:Silver | Status: [Member] [MVP] | Points: 10

Hi Madhuk,

Sorry for my mistake actually in our dotnetfunda brace of 'i' can refer italic type then only it cannot show.
Just change the integer variable in your forloop..

for (int x = 0; x <= ListBox1.Items.Count - 1; x++)
{
if (ListBox1.Items[x].Text == item)
{
ListBox1.Items[x].Selected = true;
}
}

Posted by: Madhuk on: 12/16/2010 Level:Starter | Status: [Member] | Points: 10

Thanks for pointing it. I was just checking the code but could not find anything wrong. Now changed it.

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