Loading a combobox with an enum and binding to it
Naming
HemEnum, or any enum name that ends with the word Enum, is a bad name for an enum. Enum types should not contain the word &quot;enum&quot; in their names.
Similarly, HemEnum values should not contain &quot;Hem&quot; in their names either. Your HemEnum should therefore read something like this:
public enum HemType
{
    None = -1,
    Sewn = 0,
    Weld = 1,
    DoubleFold = 2
}

myObject is a bad name for a class - should be MyObject. Kidding (although not really - types should be named following a PascalCasing convention). Anything that ends with &quot;Object&quot; should be banned from being a class name. Note that myObject doesn't compile as provided. (where's this.HemType?)
The pseudo-Hungarian notation is ok in winforms for naming controls (i.e. the &quot;cbo&quot; prefix for ComboBoxes, &quot;txt&quot; for TextBoxes, etc.) - had you been using current technology (WPF) I would have strongly advised against such naming though.
Nitpicks
You seem to make static anything that can be made static. Don't. Just because a method doesn't use instance members now doesn't mean it never will, and changing a public static void method to be public void, is a breaking change.
vHemEnum doesn't seem to be a type defined anywhere. Typo?
I'll assume the out-of-whack indentation is a Copy+Paste glitch.
Binding?
You say you want databinding, and yet you're doing this:
foreach (var value in values)
{
    var s = GetHemTypeDescription((HemEnum)value.ID );
    cbo.Items.Add(s);
}

Create a type that exposes DisplayValue and EnumValue properties, and use @DanLyons' or @JesseCSlicer's answer to bind your combobox items.
Captions
A more extensible way (vs. attributes) of providing captions for your enums, would be to use a resource file (.resx) - call the strings per the enum's names, and then retrieve the caption from the resource strings:
var description = resx.ResourceManager.GetString(hemType.ToString());


Bottom line, I've seen worse WinForms code (and WPF for that matter), but it could be improved.