winfrom手动注入文本并进行js交互

水深无声 2022-06-08 12:26 94阅读 0赞

先上码：

using System;
    using System.Runtime.InteropServices;
    using System.Windows.Forms;
    
    namespace localindex
    {
        public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
            }
    
            private WebBrowser webBrowser1;
    
            private void Form1_Load(object sender, EventArgs e)
            {
                webBrowser1 = new WebBrowser();
                webBrowser1.Dock = DockStyle.Fill;
                this.Controls.Add(webBrowser1);
    
                webBrowser1.AllowWebBrowserDrop = false;
                webBrowser1.IsWebBrowserContextMenuEnabled = false;
                webBrowser1.WebBrowserShortcutsEnabled = false;
                webBrowser1.ObjectForScripting = new ScriptEvent();
                webBrowser1.ScriptErrorsSuppressed = true; //出错的情况下，是否禁用脚本调试提示框
    
                webBrowser1.DocumentText =
                    "<html><head><script>" +
                    "function test(message) { alert(message); }" +
                    "</script></head><body><button " +
                    "οnclick=\"window.external.Test1('called from script code')\">" +
                    "call client code from script code</button>" +
                    "</body></html>";
            }
    
            [ComVisible(true)]
            public class ScriptEvent
            {
                public void Test(string message)
                {
                    MessageBox.Show(message, "啊啊啊啊啊");
                }
            }
        }
    }

![SouthEast][]

这里说一下

webBrowser1.ScriptErrorsSuppressed = true;

如果设置成false，假如脚本对象找不到，后者执行出错，那么会弹出提示框，比如把Test函数改成Test1,：

![SouthEast 1][]

另外，需要注意，注册脚本ScriptEvent，需要com交互可见性处理

ComVisible(true)

[SouthEast]: /images/20220608/0ba38309654b43f3a8524a77e160f9be.png
[SouthEast 1]: /images/20220608/52634e66415040ed8e6917036cd57263.png