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Dialog

Dialog 对象通过 Page.Dialog 事件按页分派。

¥Dialog objects are dispatched by page via the Page.Dialog event.

使用 Dialog 类的示例：

¥An example of using Dialog class:

using Microsoft.Playwright;
using System.Threading.Tasks;

class DialogExample
{
    public static async Task Run()
    {
        using var playwright = await Playwright.CreateAsync();
        await using var browser = await playwright.Chromium.LaunchAsync();
        var page = await browser.NewPageAsync();

        page.Dialog += async (_, dialog) =>
        {
            System.Console.WriteLine(dialog.Message);
            await dialog.DismissAsync();
        };

        await page.EvaluateAsync("alert('1');");
    }
}
注意

除非有 Page.Dialog 监听器，否则对话框会自动关闭。当监听器存在时，它必须是 Dialog.AcceptAsync() 或 Dialog.DismissAsync() 对话框 - 否则页面将 freeze 等待对话框，并且单击等操作将永远不会完成。

¥Dialogs are dismissed automatically, unless there is a Page.Dialog listener. When listener is present, it must either Dialog.AcceptAsync() or Dialog.DismissAsync() the dialog - otherwise the page will freeze waiting for the dialog, and actions like click will never finish.

方法​

¥Methods

AcceptAsync​

Added before v1.9 dialog.AcceptAsync

当对话框被接受时返回。

¥Returns when the dialog has been accepted.

用法

¥Usage

await Dialog.AcceptAsync(promptText);

参数

¥Arguments

在提示中输入的文本。如果对话框的 type 没有提示，不会造成任何影响。可选的。

¥A text to enter in prompt. Does not cause any effects if the dialog's type is not prompt. Optional.

返回

¥Returns

DefaultValue​

Added before v1.9 dialog.DefaultValue

如果对话框有提示，则返回默认提示值。否则，返回空字符串。

¥If dialog is prompt, returns default prompt value. Otherwise, returns empty string.

用法

¥Usage

Dialog.DefaultValue

返回

¥Returns

DismissAsync​

Added before v1.9 dialog.DismissAsync

当对话框关闭时返回。

¥Returns when the dialog has been dismissed.

用法

¥Usage

await Dialog.DismissAsync();

返回

¥Returns

消息​

¥Message

Added before v1.9 dialog.Message

对话框中显示一条消息。

¥A message displayed in the dialog.

用法

¥Usage

Dialog.Message

返回

¥Returns

Page​

Added in: v1.34 dialog.Page

启动此对话框的页面（如果可用）。

¥The page that initiated this dialog, if available.

用法

¥Usage

Dialog.Page

返回

¥Returns

类型​

¥Type

Added before v1.9 dialog.Type

返回对话框的类型，可以是 alert、beforeunload、confirm 或 prompt 之一。

¥Returns dialog's type, can be one of alert, beforeunload, confirm or prompt.

用法

¥Usage

Dialog.Type

返回

¥Returns