从C＃代码调用位于WPF WebBrowser Control中的Javascript函数时出错
[英]Error when calling Javascript function located in WPF WebBrowser Control from C# code
问题描述
Based on this solution i tried to call a JavaScript function located in my WebBrowser - control. 
基于此解决方案，我试图调用位于我的WebBrowser控件中的JavaScript函数。 The .xaml looks like this .xaml看起来像这样
<Grid>
<WebBrowser x:Name="browser"/>
</Grid>
But neither this code 但这个代码都没有
public MainWindow()
{
InitializeComponent();
browser.NavigateToString("<html><script>function callMe() {alert('Hello');} document.myfunc = callMe;</script><body>Hello World</body></html>");
dynamic doc = browser.Document;
doc.myfunc();
}
Error 错误
Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: ''mshtml.HTMLDocumentClass' does not contain a definition for 'myfunc''
nor this Code 也不是本规范
public MainWindow()
{
InitializeComponent();
browser.NavigateToString("<html><script>function callMe() {alert('Hallo');}</script><body>Hello World</body></html>");
browser.InvokeScript("callMe");
}
Error 错误
System.Runtime.InteropServices.COMException: 'Unknown name.
do work. 做工作。
What am I missing? 我错过了什么？
1 个解决方案
解决方案1
2 已采纳 2017-04-26 12:19:42
Try this: 尝试这个：
browser.NavigateToString("<html><script>function callMe() {alert('Hello');} document.myfunc = callMe;</script><body>Hello World</body></html>");
browser.LoadCompleted += (s,e) => browser.InvokeScript("callMe");
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