OpenTween.TweenMain.TweenMain_DragDrop C# (CSharp) Method

        private void TweenMain_DragDrop(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(DataFormats.FileDrop))
            {
                if (!e.Data.GetDataPresent(DataFormats.Html, false))  // WebBrowserコントロールからの絵文字画像Drag&Dropは弾く
                {
                    SelectMedia_DragDrop(e);
                }
            }
            else if (e.Data.GetDataPresent("UniformResourceLocatorW"))
            {
                var url = GetUrlFromDataObject(e.Data);

                string appendText;
                if (url.Item2 == null)
                    appendText = url.Item1;
                else
                    appendText = url.Item2 + " " + url.Item1;

                if (this.StatusText.TextLength == 0)
                    this.StatusText.Text = appendText;
                else
                    this.StatusText.Text += " " + appendText;
            }
            else if (e.Data.GetDataPresent(DataFormats.UnicodeText))
            {
                var text = (string)e.Data.GetData(DataFormats.UnicodeText);
                if (text != null)
                    this.StatusText.Text += text;
            }
            else if (e.Data.GetDataPresent(DataFormats.StringFormat))
            {
                string data = (string)e.Data.GetData(DataFormats.StringFormat, true);
                if (data != null) StatusText.Text += data;
            }
        }