Getting exception when read input box value using javascript executor in c#

Question

Exception :

System.InvalidOperationException: 'unknown error: Cannot read property 'querySelector' of undefined

Code :

    string title = (string)js.ExecuteScript("return arguments[0].querySelector('#supplier-item-table_filter .form-control').value");

I am trying to get text from text box. Thanks

Buaban · Accepted Answer · 2018-01-09 07:06:28Z

1

Your JS code is incorrect. The code refer to argument[0] which is the second parameter of js.ExecuteScript("your-script...",the-argument);. But you didn't pass the second parameter so it is error.

You can call querySelector from document object. See my code below.

string title = (string)js.ExecuteScript("return document.querySelector('#supplier-item-table_filter .form-control').value");

answered Jan 9, 2018 at 7:06

Buaban

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