如何在页面加载和自动点击时获取警报消息内容

Question

i have sevrale pages that have multiple jquery datatable and i just want to auto click alert when alert have this message: 'DataTables warning: table id=' . i have set this javascript for auto click if this message comes.

code:

<script type="text/javascript">
        debugger;
        var htmlString = new XMLSerializer().serializeToString(document)
        var indexOfAlertBeginning = "";
        var indexOfAlertEnd = "";
        var stringFromAlert = "";
        var alertMessages = "";
        if (htmlString.includes('alert(')) {
            indexOfAlertBeginning = htmlstring.indexof('alert(');
            stringFromAlert = htmlstring.substr(indexOfAlertBeginning);
            indexOfAlertEnd = stringFromAlert.indexof(')');
            alertMessages = stringFromAlert(0, indexOfAlertEnd);
        }
        if (stringFromAlert.includes('DataTables warning: table id=', 0)) {
            window.alert = function () {
                return true;
            }
        }
    </script>

but this have no effect and alert message comes up every time. whats' wrong here please help me...

Answer 1

If you are loading data to the table using ajax most of the time cause the problem unmatched column name between json data and columnname in your script. I found this post pretty useful for datatable and.Net Jquery Datatable with.Net