Question

Hi I am trying to read XML File using XLinq and binding the values into Combo Box:-

 XDocument xmlDoc = XDocument.Load("abc.xml");
 var res = from c in xmlDoc.Element("Clients").Descendants("Client")
           select c;

 cmb1.BindingContext = new BindingContext();
 cmb1.DataSource = res;
 cmb1.DisplayMember = "Name";
 cmb1.ValueMember = "ID";

My XMl structure is something like this:-

<Clients>
    <Client>
        <ID>-1</ID>
        <Name>--Select--</Name>
    </Client>
    <Client>
        <ID>1</ID>
        <Name>A</Name>
    </Client>
    <Client>
        <ID>2</ID>
        <Name>B</Name>
    </Client>
    <Client>
        <ID>3</ID>
        <Name>C</Name>
    </Client>
    <Client>
        <ID>4</ID>
        <Name>D</Name>
    </Client>
</Clients>

But somehow i am getting errors. Pleas help

Error is:-

System.ArgumentException: Complex DataBinding accepts as a data source either an IList or an IListSource.
   at System.Windows.Forms.ListControl.set_DataSource(Object value)

Answer 1

Your current query produces an IEnumerable<XElement> , that doesn’t give you the properties you want.

   // not tested
   var res = from c in xmlDoc.Element("Clients").Descendants("Client")
   select new { Name=c.Element("Name").Value, ID = c.Element("ID").Value };

   ...
   cmb1.DataSource = res.ToList();

The ID will be a string.