Fill String Array With ListBox Selected Items in C#

Question

I have a ListBox that has X amount (Varies from 9 - 90) of items. I'm trying to populate (On a button click) a string array with the items that are selected in the ListBox. Here is what I have so far

private void generateTam_Click(object sender, EventArgs e)
    {
        String sCombinedTam = "";
        String sTamResponseStart = "Dear $contacts.name.first,@\n@\nYour request has been received and completed.@\nThe following actions were taken:@\n";
        String sTamResponseEnd = "Thank you for choosing %company%, and have a great day!!@\n@\n$incidents.assigned.acct_id@\n%company%";

        sTamResponseStart = sTamResponseStart.Replace("@\n", System.Environment.NewLine); //Replaces token @\n with NewLine
        //Gets Actions Selected, Sends to Array
        String[] sActionItemsSelected = new String[actionsListBox.Items.Count];
        for (int x = 0; x < actionsListBox.Items.Count; ++x)
        {
            if (actionsListBox.GetSelected(x) == true)
            {
                actionsListBox.Items.CopyTo(sActionItemsSelected, 0);

            }
        }
        //Gets Profiles Selected, Sends to Array
        String[] sProfileItemsSelected = new String[profilesListBox.Items.Count];
        for (int x = 0; x < profilesListBox.Items.Count; ++x)
        {
            if (profilesListBox.GetSelected(x) == true)
            {
                profilesListBox.Items.CopyTo(sProfileItemsSelected, x);
            }
            else if (profilesListBox.GetSelected(x) == false)
            {
                sProfileItemsSelected[x] = "";
            }
        }
        //Combines strings for end response
        for (int i = 0; i < sActionItemsSelected.Length; ++i)
        {
            sCombinedTam = sCombinedTam + sActionItemsSelected[i] + "@\n";
        }
        sCombinedTam = sCombinedTam.Replace("@\n", System.Environment.NewLine);
        sTamResponseEnd = sTamResponseEnd.Replace("@\n", System.Environment.NewLine);
        sCombinedTam = sTamResponseStart + sCombinedTam + sTamResponseEnd;
        notesTextBox.Text = sCombinedTam;

        //Outputs ENTIRE index ListBoxes not just selected items.

    }

The problem comes at the end, instead of setting notesTextBox.Text to the combination string with only the ListBox Selected Items it sets it to the combination string with EVERY ListBox option.

Any help would be greatly appreciated.

@jhyap Something like this Dear $contacts.name.first,@\n@\nYour request has been received and completed.@\nThe following actions were taken:@\n [Insert Action Selected 1] [Insert Action Selected 2] ... [Insert Action Selected 90] Thank you for choosing %company%, and have a great day!!@\n@\n$incidents.assigned.acct_id@\n%company% Where @\n is replaced with a new line. — Cistoran
– Cistoran, Commented Apr 9, 2014 at 0:31

Grant Winney · Accepted Answer · 2014-04-09 01:06:21Z

3

Use the ListBox.SelectedItems property to get all selected items in a single string, separated by the newline string (you can remove the last for loop, as well as some of your other code).

You can cast the collection of selected items back to whatever type they are; in your case, a string.

var selectedItems =
    String.Join(Environment.NewLine, listBox1.SelectedItems.Cast<string>());

edited Apr 9, 2014 at 1:06

answered Apr 9, 2014 at 0:30

Grant Winney

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4 Comments

Cistoran Over a year ago

Doing sActionItemsSelected = String.Join(Environment.NewLine, actionsListBox.SelectedItems); Returns the following System.Windows.Forms.ListBox+SelectedObjectCollection Not the string like I was expecting.

Cistoran Over a year ago

The window this is contained in is WPF but the application itself is WinForms.

Cistoran Over a year ago

Yes just a collection of strings.

Cistoran Over a year ago

It looks like I am using WinForms controls as I look at it now.

GMG · Accepted Answer · 2018-06-08 12:46:20Z

0

Using linq

items = (from string s in listBox1.SelectedItems select s).ToArray();

answered Jun 8, 2018 at 12:46

GMG

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Comments

jms2505 · Accepted Answer · 2022-03-26 09:29:26Z

0

This worked for me:

Dim selectedItems As String() = listBox1.SelectedItems.Cast(Of String).ToArray

answered Mar 26, 2022 at 9:29

jms2505

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