在TitleAreaDialog中遇到某些条件之前，让按钮不能点击?

I am making a login dialog for a eclipse plugin and I was wondering what would be the best way to check if certain condition are met before you can submit the dialog. Currently I am overriding the okPressed() function and then not running the super function until the conditions are met.

我正在为一个eclipse插件制作一个登录对话框，我想知道在你提交对话框之前，最好的检查方法是什么。目前我正在重写okPressed()函数，然后在满足条件之前不运行super函数。

This is unfortunately not ideal because the user has no indication of what is wrong.

不幸的是，这并不理想，因为用户没有任何错误的指示。

Any ideas?

什么好主意吗?

2 个解决方案

#1

You can disable the OK button using something like:

你可以使用以下方法禁用OK按钮:

Button ok = getButton(IDialogConstants.OK_ID);
if (ok != null)
  ok.setEnabled(false);

You can set a message at the top of the dialog using

您可以在对话框顶部设置一个消息。

setMessage("message", type);

type can be IMessageProvider.ERROR, IMessageProvider.WARNING, IMessageProvider.INFORMATION or IMessageProvider.NONE.

可以IMessageProvider类型。错误,IMessageProvider。警告,IMessageProvider。信息或IMessageProvider.NONE。

So you can add listeners to your input fields and each time a field changes update the message and OK button enable state as required.

因此，您可以将侦听器添加到输入字段中，并且每次字段更改都会更新消息，并根据需要启用状态。

#2

To show the error/warning to your user, you can use the TitleAreaDialog.setMessage() with the message and type of message.

为了向您的用户显示错误/警告，您可以使用TitleAreaDialog.setMessage()来使用消息和消息类型。

#1