Change a C# Variable with InvokeScript

Question

I need to check if a WebBrowser control in my Windows Phone app has a history, and the way that I figured out how to do that is by using browser.InvokeScript(\"eval\",

Answer 1

hasHistory = (bool)browser.InvokeScript("eval", "return (history.length > 0);");

The method InvokeScript returns an object that is the object returned by the script you executed.

The following code is a bit hackish, but seems to work fine for most cases.

        bool hasHistory = false;
        try
        {
            webBrowser1.InvokeScript("eval");
            hasHistory = true;
        }
        catch (SystemException ex)
        {
            hasHistory = false;
        }