public static async Task <string> GetAjaxResult(this WebBrowser wb, string url)
{
wb.InstallAjaxMethod();
wb.Document.InvokeScript("topAjax", new object[] { url });
await Task.Delay(100);
object content = null;
while ((content = wb.Document.InvokeScript("getAjaxResult")) == null || content.ToString() == "")
{
await Task.Delay(100);
if (wb.IsBusy)
{
continue;
}
}
return(content.ToString());
}