private void ShowTypeSelectionForm()
{
UIResponse.WriteStartForm("EditProvider.aspx");
UIResponse.WritePara(@"To add a new provider, you must first identify the type of provider you want. Once you have selected a valid one, you may be prompted for additional information, depending on the type of the provider.");
UIResponse.WriteStartFields();
// Pick the right default
string defaultProvider;
if (TypeNameParm != null && TypeNameParm != "")
defaultProvider = TypeNameParm;
else
defaultProvider = (string)(ConfigurationManager.AppSettings["DefaultNamespaceProviderForNamespaceCreation"]);
string def = null;
// Get the list of types in the loaded assemblies that implement INamespaceProvider
ChoiceSet choices = new ChoiceSet();
foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies())
{
foreach (Type each in assembly.GetTypes())
{
if (each.IsClass)
{
foreach (Type maybe in each.GetInterfaces())
{
if (maybe == typeof(INamespaceProvider))
{
INamespaceProvider worker = (INamespaceProvider)(Activator.CreateInstance(each));
string displayString = each.FullName + " (" + worker.Description + ")";
string val = assembly.GetName() + "#" + each.FullName;
if (each.FullName == defaultProvider)
def = val;
choices.Add(displayString, val);
break;
}
}
}
}
}
UIResponse.WriteCombobox(ParmNameTypeName, "Type", "The type of provider to to use", choices, def);
// If there were any proposed values for the parms provided in the query string, pass them along
foreach (string pName in Request.QueryString)
UIResponse.WriteHiddenField(pName, Request.QueryString[pName]);
UIResponse.WriteEndFields();
UIResponse.WriteStartButtons();
UIResponse.WriteSubmitButton("next1", "Next >>");
UIResponse.WriteEndButtons();
UIResponse.WriteEndForm();
}
public void WriteCombobox(string fieldName, string fieldLabel, string help, ChoiceSet choices, string currentValue)
{
StringBuilder b = new StringBuilder();
b.Append("<select name='" + fieldName + "' id='" + fieldName + "'>");
for (int i = 0; i < choices.DisplayStrings.Count; i++)
{
string disp = (string)(choices.DisplayStrings[i]);
string val = (string)(choices.ValueStrings[i]);
string sel = (val == currentValue) ? " selected " : "";
b.Append("<option " + sel + " value='"+ Escape(val) + "'>" + disp + "</option>");
}
b.Append(@"</select>");
WriteFieldHTML(fieldLabel, help, b.ToString());
}