电话是以下方法或属性之间暧昧：`Android.App.AlertDialog.Builder.SetPositiveButton [英] The call is ambiguous between the following methods or properties: `Android.App.AlertDialog.Builder.SetPositiveButton

问题描述

一刻我试图与C＃Android应用程序创建一个警告对话框。不幸的是我得到这个错误：

Momently i'm trying to create an Alert Dialog on Android application with C#. Unfortunately I get this error:

The call is ambiguous between the following methods or properties: `Android.App.AlertDialog.Builder.SetPositiveButton(string, System.EventHandler<Android.Content.DialogClickEventArgs>)' and `Android.App.AlertDialog.Builder.SetPositiveButton(string, Android.Content.IDialogInterfaceOnClickListener)' (CS0121) (App)

这是我的代码：

var alert = new AlertDialog.Builder(this).SetTitle("Title").SetMessage("Message").setPositiveButton("OK", null);
alert.Show ();
return true;

我在做什么错了？

What am I doing wrong?

推荐答案

您的来电 .setPositiveButton（OK，NULL）不明确，因为该方法具有2过载和您的第二个参数为空即可解释为：

your call to .setPositiveButton("OK", null) is ambiguous because the method has 2 overloads and your second parameter null can be interpreted as :

• System.EventHandler< Android.Content.DialogClickEventArgs>


• 或作为 Android.Content.IDialogInterfaceOnClickListener

• System.EventHandler<Android.Content.DialogClickEventArgs>
• or as a Android.Content.IDialogInterfaceOnClickListener

如果你要调用的第二个重载，试试这个：

if you want to invoke the second overload, try this:

.setPositiveButton("OK", (Android.Content.IDialogInterfaceOnClickListener)null)

这篇关于电话是以下方法或属性之间暧昧：`Android.App.AlertDialog.Builder.SetPositiveButton的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！