Rank: Newbie
Groups: Member
Joined: 8/3/2015
Posts: 3
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Hi Guys,
just purchased the EO Web browser product and just getting my head around it all..
question about getting a synchronous string back from vb.net
eg:
javascript requests a list of printer names from vb.net
VB gets request, creates a string and sends it back
When received back in javascript, the result is “null”
javascript call:
var result = eoWebBrowser.extInvoke("getPrinters", "")
Vb.net
Public Function WebView_JSExtInvoke(sender As Object, e As JSExtInvokeArgs) As String
If e.FunctionName = "getPrinters" Then
Dim printers As String = getPrinterNames()
Return printers
End If
End Function
the plumbing all works fine, just the result comes back as "null"
I'm hoping it all makes sense and someone can help me out..
many thanks,
Pouya
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,083
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Hi,
You would return value to the JavaScript by setting e.ReturnValue in your event handler, not by returning a value from your event handler function.
Thanks!
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Rank: Newbie
Groups: Member
Joined: 8/3/2015
Posts: 3
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Perfect - thank you!
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,083
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You are welcome. Please feel free to let us know if there is anything else.
Thanks!
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