Eto Webview ExecuteScript returns empty

Grasshopper Developer
, ,
1

Hi All,

I’m using Eto.Webview in an attempt to create a better looking UI. At the moment I’m trying to return the value of an element from the webview however it is returning empty when it definitely has a value in the html. Am I executing the script correctly?

    def GetText(self):
        return self.webview.ExecuteScript("document.getElementById('id').value;")
2

Hi @jordanmathers.jm,

Any help here?

– Dale

3

Hi Dale,

That fixed some issues around content display but not the null return from doument.GetElementById.

I just tested it with the following and got the alert which wasn’t happening before.

self.webview.ExecuteScript("alert('this is called from code');")

I also checked to see the type of return from the ExecuteScript and it’s returning an empty string.

Here’s the html:

<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>WebView Test</title>
</head>
<body>
<label id="label">Test Label</label>
<input id="inputtext" type="text"><br>
<input id="inputradio" type="radio" value="test"><br>
<select id="select">
    <option value="Hello">Hello</option>
    <option value="World">World</option>
    <option value="Rhino">Rhino</option>
</select>

</body>

Any ideas? Also attached the *.py

webview test.py (1.9 KB)

4

Hey @jordanmathers.jm,

You have to write “return” in the script. E.g.

 def GetText(self):
    return self.webview.ExecuteScript("return document.getElementById('id').value;")
5

Well then. That was simple! Thanks

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