Get custom templates programmatically sharepoint 2010 - sharepoint-2010

Question

To get standard templates I do:
private void getTemplates()
{
string server = serverURL();
using (SPSite siteCollection = new SPSite(server))
{
SPWebTemplateCollection Templates = siteCollection.GetWebTemplates(1033);
foreach (SPWebTemplate template in Templates)
{
ddlSiteTemplate.Items.Add(new ListItem(template.Title, template.Name));
}
}
}
I thought I could do:
private void getTemplates()
{
string server = serverURL();
using (SPSite siteCollection = new SPSite(server))
{
SPWebTemplateCollection Templates = siteCollection.GetCustomWebTemplates(1033);
foreach (SPCustomWebTemplate template in Templates)
{
ddlSiteTemplate.Items.Add(new ListItem(template.Title, template.Name));
}
}
}
To get the custom templates but the dropdown is empty, what am I doing wrong here?
Thanks in advance.
Edit: the templates are activated in the solutions gallery.

Answer 1

I got it to work with
private void getTemplates()
{
string server = serverURL();
using (SPSite siteCollection = new SPSite(server))
{
SPWebTemplateCollection Templates = siteCollection.GetAvailableWebTemplates(1033);
foreach (SPCustomWebTemplate template in Templates)
{
//this gives me all templates, both standard and custom so I filter by name
if(template.name.ToUpper().StartsWith("CUSTOM"))
{
ddlSiteTemplate.Items.Add(new ListItem(template.Title, template.Name));
}
}
}
}

Answer 2

SPSite does not contain a GetAvailableWebTemplates method. For those who would like to use the code use the one below. So I have added this line of code:
using(SPWeb web = siteCollection.OpenWeb())
{
SPWebTemplateCollection Templates = web.GetAvailableWebTemplates(1033);
Full code:
private void getTemplates()
{
string server = serverURL();
using (SPSite siteCollection = new SPSite(server))
{
using(SPWeb web = siteCollection.OpenWeb())
{
SPWebTemplateCollection Templates = web.GetAvailableWebTemplates(1033);
foreach (SPCustomWebTemplate template in Templates)
{
//this gives me all templates, both standard and custom so I filter by name
if(template.name.ToUpper().StartsWith("CUSTOM"))
{
ddlSiteTemplate.Items.Add(new ListItem(template.Title, template.Name));
}
}
}
}
}