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How Can I Inject JavaScript into a WebBrowser Control When `innerHTML` is Unsupported?
How Can I Inject JavaScript into a WebBrowser Control When `innerHTML` is Unsupported?
Jan 26, 2025 pm 09:11 PM
Workaround for Injecting JavaScript into WebBrowser Control
Directly injecting JavaScript using innerHTML isn't feasible with the System.Windows.Forms.HtmlElement object. This guide provides a solution to execute scripts successfully within the WebBrowser control.
Here's how to inject JavaScript code:
- Access the page's
<head>element via theDocumentobject. - Create a new
HtmlElementrepresenting a<script>tag. - Cast the
HtmlDomElementtoIHTMLScriptElementto access thetextproperty. - Assign your JavaScript code to the
textproperty. - Append the
<script>tag to the<head>element. - Use the
Documentobject'sInvokeScriptmethod to execute the JavaScript function.
This revised approach bypasses the limitations of innerHTML and ensures successful JavaScript execution within the WebBrowser control.
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