Question about displaying info in a label by selecting an item in a combo box!

I have a combo box that contains 5 items. I have one label on the window. What i would like to do is whenever a user clicks on one of the items in the combobox, text will populate that label. I would like to show information (IP address, etc.) about whichever item is selected. Any help is appreciated. Thanks.

 private void cmbGroups_SelectionChanged(object sender, SelectionChangedEventArgs e) 
    { 
        //Combo box selection changed. Re-bind data 
        string selectedGroup = (string)cmbGroups.SelectedItem; 
        BindGrid(selectedGroup); 
    }

private void BindGrid(string selectedGroup)
        {
            //Re-bind the grid
            dgPortStatus.DataContext = _dicPortStatus[selectedGroup].Portstatus.DefaultView;

            InitializeColumns();
        }

  private void _UpdatePortStatus()
        {
            string[] files = Directory.GetFiles(System.Configuration.ConfigurationSettings.AppSettings["portStatusDir"], "PortStatus.*");

            foreach (string file in files)
            {

                PortStatus ps = new PortStatus();
                ps.ReadXml(new StreamReader(file));
                //ps.ReadXml(new FileStream(file, FileMode.Open, FileAccess.Read));
                
                if (!_dicPortStatus.ContainsKey(ps.General[0].Group))
                {
                    _dicPortStatus.Add(ps.General[0].Group, ps);
                }

                PortStatus psOrig = _dicPortStatus[ps.General[0].Group];

                foreach (PortStatus.PortstatusRow psr in ps.Portstatus.Rows)
                {
                    DataRow[] drs = psOrig.Portstatus.Select("PortNumber = '" + psr.PortNumber + "'");

                    if (drs.Length == 1)
                    {
                        DateTime curDt = DateTime.Parse(drs[0]["LastUpdateDateTimeUTC"].ToString());
                        DateTime newDt = psr.LastUpdateDateTimeUTC;

                        if (newDt > curDt)
                        {
                            drs[0]["LastUpdateDateTimeUTC"] = newDt;
                        }
                    }
                    else if (drs.Length == 0)
                    {
                        psOrig.Portstatus.ImportRow(psr);
                    }
                    else
                    {
                        throw new Exception("More than one of the same portnumber on PortStatus file: " + file);
                    }
                }
            }

            foreach (string groupName in _dicPortStatus.Keys)
            {
                if (!cmbGroups.Items.Contains(groupName))
                {
                    cmbGroups.Items.Add(groupName);
                    cmbGroups.SelectedItem = groupName;
                }
            }

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Suthish Nair15y ago
```
label1.Text += comboBox1.SelectedItem.Text;
```
or something else you looking for.
0
Sam Hobbs15y ago
There are articles in this web site about comboboxes. There is one new, as new as one or two days old. Have a look at the articles.
0
Frogleg15y ago

Create combobox with 3 items cat,dog and cow
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
if (comboBox1.SelectedItem.ToString() == "cat")
{
label1.Text = ("cat");
}
else if (comboBox1.SelectedItem.ToString() == "dog")
{
label1.Text = ("dog");
}
else if (comboBox1.SelectedItem.ToString() == "cow")
{
label1.Text = ("cow");
}
}
label1.text can display any string you want
0