public String GetJsValue(RenderContext context)
{
if (String.IsNullOrEmpty(GroupBy))
{
throw new XamlException("GroupBy property is required");
}
var sb = new StringBuilder($"{{prop: '{GroupBy.EncodeJs()}'");
if (Collapsed)
{
sb.Append(", expanded:").Append((!Collapsed).ToString().ToLowerInvariant());
}
if (Count)
{
sb.Append(", count: true");
}
if (!String.IsNullOrEmpty(Title))
{
sb.Append($", title: '{Title.EncodeJs()}' ");
}
sb.Append("}");
return(sb.ToString());
}