Question

I have a windows form with 3 comboboxes and a XML file as following

<?xml version="1.0"?>
<shrtcutkeys>
    <Keysmain>
        <keychars>
            <key1>
                Ctrl
            </key1>
            <key1>
                Alt
            </key1>
            <key1>
                Shift
            </key1>
        </keychars>
    </Keysmain>
    <Seckeys>
        <keychars>
            <key2>
                Ctrl
            </key2>
            <key2>
                Alt
            </key2>
            <key2>
                Shift
            </key2>
        </keychars>
    </Seckeys>
    <Alphas>
        <keychars>
            <key3>
                a
            </key3>
            <key3>
                b
            </key3>
            <key3>
                c
            </key3>
        </keychars>
    </Alphas>
</shrtcutkeys>

So i would like to display all key1 in combobox1 and all key2 in combox2 and so on so forth..tried doing this but not really working

DataSet dsSet = new DataSet();
            dsSet.ReadXml("C:\\Users\\jackandjill\\Documents\\Visual Studio 2010\\Projects\\highlite\\highlite\\keys.xml");
            comboBox1.DataSource = dsSet.Tables["keys"];
            comboBox1.DisplayMember = "key1";  

Answer 1

I prefer to use Linq2XML:

Load the data into an XDocument:
Either load from file:

var xmlDocument = XDocument.Load(fileName);

or load from a string

var xmlDocument = XDocument.Parse( @"<?xml version=""1.0""?>
<shrtcutkeys>
    <Keysmain>
        <keychars>
            <key1>
                Ctrl
            </key1>
            <key1>
                Alt
            </key1>
            <key1>
                Shift
            </key1>
        </keychars>
    </Keysmain>
    <Seckeys>
        <keychars>
            <key2>
                Ctrl
            </key2>
            <key2>
                Alt
            </key2>
            <key2>
                Shift
            </key2>
        </keychars>
    </Seckeys>
    <Alphas>
        <keychars>
            <key3>
                a
            </key3>
            <key3>
                b
            </key3>
            <key3>
                c
            </key3>
        </keychars>
    </Alphas>
</shrtcutkeys>");

Then you can select desired items

var mainItems = from key in xmlDocument.Descendants("key1")
                select key.Value;
var secKeyItems = from key in xmlDocument.Descendants("key2")
                select key.Value;
var alphaItems = from key in xmlDocument.Descendants("key3")
                select key.Value;

You can now bind each combo to the selected result, like this:

comboBox1.DataSource = mainItems.ToList();

You might want to wash your XML (to remove newlines and spaces)

var mainItems = from key in xmlDocument.Descendants("key1")
                select key.Value.Trim();
var secKeyItems = from key in xmlDocument.Descendants("key2")
                select key.Value.Trim();
var alphaItems = from key in xmlDocument.Descendants("key3")
                select key.Value.Trim();