private static FieldControl CreateFieldControlByHint(string hint)
{
FieldControl control = null;
var designator = hint.Split(new char[] { ':' });
if (designator.Count() != 2)
{
Logger.WriteWarning(Logger.EventId.NotDefined, string.Concat("Malformed field control hint: ", hint, ", falling back to default."));
return(null);
}
var namespaces = from TagPrefixInfo tag in TagPrefixInfos
where tag.TagPrefix.Equals(designator[0], StringComparison.InvariantCultureIgnoreCase)
select tag.Namespace;
var types = namespaces.Select(ns => TypeHandler.GetType(string.Concat(ns, ".", designator[1]))).Where(t => t != null);
if (types.Count() > 0)
{
control = (FieldControl)Activator.CreateInstance(types.First());
}
if (control == null)
{
Logger.WriteWarning(Logger.EventId.NotDefined, string.Concat("Failed to instantiate field control by hint: ", hint, ", falling back to default."));
}
return(control);
}
private static FieldControl CreateDefaultDateTimeControl(DateTimeFieldSetting dateTimeFieldSetting)
{
Type controlType = null;
FieldControl control = null;
controlType = typeof(DatePicker);
control = (FieldControl)Activator.CreateInstance(controlType);
return(control);
}
public static FieldControl CreateDefaultFieldControl(Field field)
{
FieldControl control = null;
var choiceSetting = field.FieldSetting as ChoiceFieldSetting;
var longTextSetting = field.FieldSetting as LongTextFieldSetting;
var dateTimeFieldSetting = field.FieldSetting as DateTimeFieldSetting;
string hint = field.FieldSetting.ControlHint;
if (!string.IsNullOrEmpty(hint))
{
control = CreateFieldControlByHint(hint);
}
//choice field?
else if (choiceSetting != null)
{
control = CreateDefaultChoiceControl(choiceSetting);
}
//longtext field?
else if (longTextSetting != null)
{
control = CreateDefaultLongTextControl(longTextSetting);
}
//datetime field?
else if (dateTimeFieldSetting != null)
{
control = CreateDefaultDateTimeControl(dateTimeFieldSetting);
}
//generic way, also a fallback logic if we don't have a field control by now
if (control == null)
{
Type controlType = null;
if (!ControlTable.TryGetValue(field.FieldSetting.ShortName, out controlType))
{
throw new ApplicationException(String.Concat("Cannot resolve the generic field control by '", field.GetType().FullName, "'"));
}
control = (FieldControl)Activator.CreateInstance(controlType);
}
if (control == null)
{
throw new ApplicationException(string.Concat("Failed to instantiate a field control for field ", field.Name));
}
control.FieldName = field.Name;
control.DoAutoConfigure(field.FieldSetting);
return(control);
}
private static FieldControl CreateDefaultLongTextControl(LongTextFieldSetting longTextSetting)
{
Type controlType = null;
FieldControl control = null;
if (longTextSetting != null)
{
if (longTextSetting.ControlHint == "control:ChoiceOptionEditor")
{
controlType = typeof(ChoiceOptionEditor);
}
if (longTextSetting.ControlHint == "control:SurveyRuleEditor")
{
controlType = typeof(SurveyRuleEditor);
}
else
{
switch (longTextSetting.TextType)
{
case TextType.RichText:
controlType = typeof(RichText);
break;
case TextType.AdvancedRichText:
controlType = typeof(RichText);
break;
default:
controlType = typeof(LongText);
break;
}
}
control = (FieldControl)Activator.CreateInstance(controlType);
}
return(control);
}
