- update readme and formbase

README.md

@@ -688,26 +688,8 @@ No example yet
 
 <img src="images/promptdialog.PNG" />
 
-#### Without Eventhandler (pre-init of form necessary)
 
-```
-
-PromptDialog pd = new PromptDialog("Please confirm");
-
-pd.AddButton(new ButtonBase("Ok", "ok"));
-pd.AddButton(new ButtonBase("Cancel", "cancel"));
-
-var tf = new TestForm2();
-
-pd.ButtonForms.Add("ok", tf);
-pd.ButtonForms.Add("cancel", tf);
-
-await this.NavigateTo(pd);
-
-```
-
-
-#### With Eventhandler (no pre-init of form necessary)
+#### With Eventhandler
 
 ```
 

TelegramBotBase/Base/FormBase.cs

@@ -312,12 +312,12 @@ namespace TelegramBotBase.Form
         /// Removes control from the formular and runs a cleanup on it.
         /// </summary>
         /// <param name="control"></param>
-        public async void RemoveControl(ControlBase control)
+        public void RemoveControl(ControlBase control)
         {
             if (!this.Controls.Contains(control))
                 return;
 
-            await control.Cleanup();
+            control.Cleanup().Wait();
 
             this.Controls.Remove(control);
         }