calling Javascript from c# using awesomium

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I\'m trying awesomium for create a basic app, I\'m testing the js <----> c# communication but this doesn\'t seem work well...I create a local html and open it..so far so

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渐次进展

2020-12-31 12:32

This is a solution for Awesomium v1.7.0.5. It uses "JSObject" to get the javascript "window" object. From there it calls a javascript function that uses jQuery to dynamically set the text of a "div". This also uses jQuery to call the function when the document is ready.

One can use the JSObject.Bind method to call C# methods from javascript.

Head:

<script type="text/javascript">

    function setDivText(s)
    {
        $("#msgDiv").text(s);
    }

    $(document).ready(function () {

        setDivText("This is the start up text.");

    });
</script>

Body:

<body>
<p>Test...</p>
<p></p>

<div id="msgDiv"></div>

</body>

C#:

This uses WPF WebControl with Name of "webView" inside a Button Click event handler.

  using Awesomium.Core;

  ...

  private void Button1_Click(object sender, RoutedEventArgs e)
  {
     JSObject window = webView.ExecuteJavascriptWithResult("window");

     if (window == null)
        return;

     using (window)
     {
        window.InvokeAsync("setDivText", "You pressed button 1.");            
     }
  }

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我寻月下人不归

2020-12-31 12:52

The problem is that you're trying to call the Javascript on the page before it has finished loading. If you wait until after load has completed, you should see it execute correctly.

webView.LoadCompleted += ExecuteJavascript;

WebCore.BaseDirectory = @"C:\Documents and Settings\ME\dummytests\codes\views";
webView.LoadFile("base.html");

...

private void ExecuteJavascript(object sender, EventArgs eventArgs)
{
    JSValue param1 = new JSValue("nameItem");
    webView.CallJavascriptFunction("base", "other");
    webView.CallJavascriptFunction("base", "newItem", param1);
    webView.Focus();
}

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