Although Archedius’s method works, officially it is deprecated and instead recommended way to programmatically create a template is to load XAML from a string or a memory stream using the Load method of the XamlReader class like this…
public DataTemplate Create(Type type)
{
StringReader stringReader = new StringReader(
@"<DataTemplate
xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation"">
<" + type.Name + @" Text=""{Binding " + ShowColumn + @"}""/>
</DataTemplate>");
XmlReader xmlReader = XmlReader.Create(stringReader);
return XamlReader.Load(xmlReader) as DataTemplate;
}
Official line taken from msdn: http://msdn.microsoft.com/en-us/library/system.windows.frameworkelementfactory.aspx
Code example from Fredrik Hedblad’s post here: Problems with XamlReader generating DataTemplate