SnapDotNet.Apps.Notifications.TileContent.TileSquare310x310Base.GetContent C# (CSharp) Method

                public override string GetContent()
                {
                    if (RequireWide310x150Content && Wide310x150Content == null)
                    {
                        throw new NotificationContentValidationException(
                            "Wide310x150 tile content should be included with each large tile. " +
                            "If this behavior is undesired, use the RequireWide310x150Content property.");
                    }

                    if (Wide310x150Content != null && Wide310x150Content.RequireSquare150x150Content && Wide310x150Content.Square150x150Content == null)
                    {
                        throw new NotificationContentValidationException(
                            "This tile's wide content requires square content. " +
                            "If this behavior is undesired, use the Wide310x150Content.RequireSquare150x150Content property.");
                    }

                    StringBuilder visualNode = new StringBuilder(String.Empty);
                    visualNode.AppendFormat("<visual version='{0}'", TileUtil.NOTIFICATION_CONTENT_VERSION);
                    if (!String.IsNullOrWhiteSpace(Lang))
                    {
                        visualNode.AppendFormat(" lang='{0}'", Util.HttpEncode(Lang));
                    }
                    if (Branding != TileBranding.Logo)
                    {
                        visualNode.AppendFormat(" branding='{0}'", Branding.ToString().ToLowerInvariant());
                    }
                    if (!String.IsNullOrWhiteSpace(BaseUri))
                    {
                        visualNode.AppendFormat(" baseUri='{0}'", Util.HttpEncode(BaseUri));
                    }
                    if (AddImageQuery)
                    {
                        visualNode.AppendFormat(" addImageQuery='true'");
                    }
                    visualNode.Append(">");

                    StringBuilder builder = new StringBuilder(String.Empty);
                    builder.AppendFormat("<tile>{0}", visualNode);
                    if (Wide310x150Content != null)
                    {
                        IWide310x150TileInternal wideBase = Wide310x150Content as IWide310x150TileInternal;
                        if (wideBase == null)
                        {
                            throw new NotificationContentValidationException("The provided wide tile content class is unsupported.");
                        }
                        builder.Append(wideBase.SerializeBindings(Lang, BaseUri, Branding, AddImageQuery));
                    }
                    builder.AppendFormat("<binding template='{0}'", TemplateName);
                    if (!String.IsNullOrWhiteSpace(FallbackName))
                    {
                        builder.AppendFormat(" fallback='{0}'", FallbackName);
                    }
                    if (!String.IsNullOrWhiteSpace(ContentId))
                    {
                        builder.AppendFormat(" contentId='{0}'", ContentId.ToLowerInvariant());
                    }
                    builder.AppendFormat(">{0}</binding></visual></tile>", SerializeProperties(Lang, BaseUri, AddImageQuery));

                    return builder.ToString();
                }