我正在构建一个原始的基本Web浏览器,我的工作场所希望在其上托管一些内部应用程序 . 我在用C#编写的WinForms应用程序中使用 cefSharp
. 我在下载处理程序时遇到问题 . 我想直接将文件下载到 C:\Users\[username]\Downloads
文件夹(我们所有的计算机都是Windows计算机),而不必使用该对话框 .
从Force CEFSharp to download without showing dialog读取建议使用 showDialog: false
应该有效,但是当我应用它时,没有任何下载 . 同样,通过研究以下任何一项,我没有取得任何进展:
-
https://groups.google.com/forum/?nomobile=true#!topic/cefsharp/bS8PhHRlSAc
-
https://groups.google.com/forum/#!topic/cefsharp/3cMUHSGxPDc
作为奖励,可以选择打开文件,例如谷歌浏览器,但这不是绝对必要的 .
下面的代码运行顺畅,接近我正在尝试的内容 . 此示例打开GitHub Gist . 单击右侧的“下载Zip”按钮可打开下载并保存文件的对话框 .
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web.Script.Serialization;
using System.Windows.Forms;
using CefSharp;
using CefSharp.WinForms;
using System.IO;
namespace ShinyChrome
{
public partial class ShinyApp : Form
{
public class DownloadHandler : IDownloadHandler
{
public event EventHandler<DownloadItem> OnBeforeDownloadFired;
public event EventHandler<DownloadItem> OnDownloadUpdatedFired;
public void OnBeforeDownload(IBrowser browser, DownloadItem downloadItem, IBeforeDownloadCallback callback)
{
var handler = OnBeforeDownloadFired;
if (handler != null)
{
handler(this, downloadItem);
}
if (!callback.IsDisposed)
{
using (callback)
{
callback.Continue(downloadItem.SuggestedFileName, showDialog: true);
}
}
}
public void OnDownloadUpdated(IBrowser browser, DownloadItem downloadItem, IDownloadItemCallback callback)
{
var handler = OnDownloadUpdatedFired;
if (handler != null)
{
handler(this, downloadItem);
}
}
}
public ShinyApp()
{
InitializeComponent();
}
ChromiumWebBrowser chrome;
private void ShinyApp_Load(object sender, EventArgs e)
{
CefSettings settings = new CefSettings();
Cef.Initialize(settings);
chrome = new ChromiumWebBrowser("https://gist.github.com/nutterb/32992747c1a69aa7a8fdcc2b5347178f");
chrome.DownloadHandler = new DownloadHandler();
this.shinyContainer.Controls.Add(chrome);
}
}
}
1 回答
根据TEK的建议,我用下面的代码替换了问题中的
if(!callback.IsDisposed)
块 .