简体   繁体   中英

WebElement getText() returning empty string even though element is visible

I'm having a hard time retrieving the text of an element, for some reason WebDriver can find the element but it can't retrieve the text, I'm suspecting because for some reason the element is not visible to WebDriver, I'll get to that in a moment.

Here's a snippet of the HTML:

<td id="x-auto-4169" class="x-grid3-col x-grid3-cell x-grid3-td-badCalls " style="width:53px;" role="gridcell">
    <div class="x-grid3-cell-inner x-grid3-col-badCalls" unselectable="on">0</div>
</td>

The Xpath to get to this is

String valueXpath = "((//div[@id=\"QosDashpardPanelBottom\"]//div[@id=\"CollectorQoSPerformanceMetricsgrid\"]//div[contains(@class, \"x-grid3-row  x-unselectable-single\")])[" + j + "]//div)[" + i + "]";
WebElement value = driver.findElement(By.xpath(valueXpath));

Where 'j' is the row number and 'i' is the column number respectively in a table/grid. I know that Selenium can find the element because I can do

WebElement class = driver.findElement(By.xpath(fullXpath));
String classAttr = arg.getAttribute("class");

and I return

x-grid3-cell-inner x-grid3-col-badCalls

but when I try

String cellValue = value.getText();
System.out.println(cellValue);

I get an empty string. I'm staring at my computer screen and I can see the value, it's visible, I know Selenium finds the element but I can't retrieve the text. Interestingly someone suggested to first click on the value then try to getText() so when I tried to click I got the exception:

org.openqa.selenium.ElementNotVisibleException: Element is not currently visible and so may not be interacted with

So I'm wondering if I'm not able to retrieve the text value because it's not visible? However if that's the case it seems strange that I can retrieve things like class attribute, tags, etc but not the text value.

Any suggestions would be greatly appreciated.

HTML:

<body class=" ext-gecko ext-windows" onload="processLoaders();">
<script type="text/javascript">
<div id="topNavDiv" style="height: 90px">
<div id="bodyContentOuter" style="width: 1280px; height: 587px;">
    <div id="bodyContentInner">
        <script src="RLT/RLT.nocache.js" language="javascript" type="text/javascript">
        <script defer="defer">
        <script language="javascript" type="text/javascript">
        <div id="rtcpMain" class=" x-component x-border-layout-ct" style="width: 1280px; height: 587px;">
            <div id="rtcpMainWest" class=" x-panel x-component x-border-panel" style="left: 5px; top: 5px; width: 225px;">
            <div id="x-auto-2" class=" x-tab-panel x-component x-border-panel" tabindex="0" hidefocus="true" style="left: 235px; top: 5px; width: 1040px;">
                <div class="x-tab-panel-header x-unselectable" style="width: 1038px;" unselectable="on">
                <div class="tone-rtcp-tabbed-content-panel" style="width: 1040px; height: 550px;">
                    <div id="x-auto-10" class=" x-component" style="overflow: auto; width: 1040px; height: 550px;">
                        <div id="QosDashboardPanel0" class=" x-panel x-component" style="width: 1040px;">
                            <div id="x-auto-13" class=" x-small-editor x-panel-header x-component x-hide-display" role="presentation">
                            <div id="rtcpDPBWrap" class="x-panel-bwrap" role="presentation" style="overflow: visible;">
                                <div class="x-panel-tbar x-panel-tbar-noheader" role="presentation" style="width: 1040px;">
                                <div id="rtcpDPBody" class="x-panel-body x-panel-body-noheader x-border-layout-ct" role="presentation" style="width: 1038px; height: 700px;">
                                    <div id="QosDashboardPanelTop" class=" x-component x-border-panel x-border-layout-ct" style="left: 0px; top: 0px; width: 1038px; height: 400px;">
                                    <div id="QosDashpardPanelBottom" class=" x-component x-border-panel x-border-layout-ct" style="left: 1px; top: 401px; width: 1036px; height: 298px;">
                                        <div id="QosDashpardPanel_pqosChartsLC" class=" x-component x-border-panel x-border-layout-ct x-hide-display" style="left: 0px; top: 0px; width: 1036px; height: 400px;">
                                        <div id="QosDashpardPanel_metricsTablesLC" class=" x-component x-border-panel x-border-layout-ct" style="left: 1px; top: 1px; width: 1034px; height: 296px;">
                                            <div id="CollectorMetrics_toneletWrapper" class=" x-panel x-component x-border-panel" style="left: 1px; top: 1px; width: 330px;">
                                                <div id="x-auto-99" class=" x-small-editor x-panel-header x-component x-hide-display" role="presentation">
                                                <div class="x-panel-bwrap" role="presentation">
                                                    <div class="x-panel-body x-panel-body-noheader" role="presentation" style="width: 328px; height: 292px;">
                                                        <div id="CollectorMetrics" class=" x-panel x-component" style="width: 328px;">
                                                            <div id="x-auto-109" class=" x-small-editor x-panel-header x-component x-unselectable" role="presentation" unselectable="on">
                                                            <div class="x-panel-bwrap" role="presentation">
                                                                <div class="x-panel-body" role="presentation" style="width: 326px; height: 265px;">
                                                                    <div id="CollectorQoSPerformanceMetricsgrid" class=" x-grid-panel x-component" style="position: relative; width: 326px; height: 265px;" tabindex="0" hidefocus="true" unselectable="">
                                                                        <div class="x-grid3" role="presentation" style="width: 326px; height: 265px;">
                                                                            <div class="x-grid3-viewport" role="presentation">
                                                                                <div class="x-grid3-header" role="presentation">
                                                                                <div class="x-grid3-scroller" role="presentation" style="width: 326px; height: 243px;">
                                                                                    <div class="x-grid3-body" role="presentation">
                                                                                        <div id="CollectorQoSPerformanceMetricsgrid_x-auto-633" class="x-grid3-row x-unselectable-single x-grid3-row-selected x-grid3-highlightrow " style="width:510px;">
                                                                                            <table class="x-grid3-row-table" cellspacing="0" cellpadding="0" border="0" style="width:510px;" role="presentation">
                                                                                                <tbody role="presentation">
                                                                                                    <tr role="presentation">
                                                                                                        <td id="x-auto-634" class="x-grid3-col x-grid3-cell x-grid3-td-name x-grid-cell-first " style="width:148px;" role="gridcell">
                                                                                                            <div class="x-grid3-cell-inner x-grid3-col-name" unselectable="on">
                                                                                                                <u>Lync</u>
                                                                                                            </div>
                                                                                                        </td>
                                                                                                        <td id="x-auto-635" class="x-grid3-col x-grid3-cell x-grid3-td-badCalls " style="width:53px;" role="gridcell">
                                                                                                            <div class="x-grid3-cell-inner x-grid3-col-badCalls" unselectable="on">36</div>
                                                                                                        </td>
                                                                                                        <td id="x-auto-636" class="x-grid3-col x-grid3-cell x-grid3-td-totalCalls " style="width:58px;" role="gridcell">
                                                                                                            <div class="x-grid3-cell-inner x-grid3-col-totalCalls" unselectable="on">120</div>
                                                                                                        </td>
                                                                                                        <td id="x-auto-637" class="x-grid3-col x-grid3-cell x-grid3-td-avgLatency " style="width:73px;" role="gridcell">
                                                                                                            <div class="x-grid3-cell-inner x-grid3-col-avgLatency" unselectable="on">223</div>
                                                                                                        </td>
                                                                                                        <td id="x-auto-638" class="x-grid3-col x-grid3-cell x-grid3-td-avgLoss " style="width:53px;" role="gridcell">
                                                                                                            <div class="x-grid3-cell-inner x-grid3-col-avgLoss" unselectable="on">0.80</div>
                                                                                                        </td>
                                                                                                        <td id="x-auto-639" class="x-grid3-col x-grid3-cell x-grid3-td-avgJitter " style="width:58px;" role="gridcell">
                                                                                                            <div class="x-grid3-cell-inner x-grid3-col-avgJitter" unselectable="on">29</div>
                                                                                                        </td>
                                                                                                        <td id="x-auto-640" class="x-grid3-col x-grid3-cell x-grid3-td-avgMOS x-grid3-cell-last " style="width:53px;" role="gridcell">
                                                                                                            <div class="x-grid3-cell-inner x-grid3-col-avgMOS" unselectable="on">3.86</div>
                                                                                                        </td>
                                                                                                    </tr>
                                                                                                </tbody>
                                                                                            </table>
                                                                                        </div>
                                                                                        <div id="CollectorQoSPerformanceMetricsgrid_x-auto-641" class="x-grid3-row x-unselectable-single " style="width:510px;">
                                                                                            <table class="x-grid3-row-table" cellspacing="0" cellpadding="0" border="0" style="width:510px;" role="presentation">
                                                                                                <tbody role="presentation">
                                                                                                    <tr role="presentation">
                                                                                                    <td id="x-auto-642" class="x-grid3-col x-grid3-cell x-grid3-td-name x-grid-cell-first " style="width:148px;" role="gridcell">
                                                                                                        <div class="x-grid3-cell-inner x-grid3-col-name" unselectable="on">
                                                                                                            <u>CUCM-Publisher</u>
                                                                                                        </div>
                                                                                                    </td>
                                                                                                    <td id="x-auto-643" class="x-grid3-col x-grid3-cell x-grid3-td-badCalls " style="width:53px;" role="gridcell">
                                                                                                        <div class="x-grid3-cell-inner x-grid3-col-badCalls" unselectable="on">3</div>
                                                                                                    </td>
                                                                                                    <td id="x-auto-644" class="x-grid3-col x-grid3-cell x-grid3-td-totalCalls " style="width:58px;" role="gridcell">
                                                                                                        <div class="x-grid3-cell-inner x-grid3-col-totalCalls" unselectable="on">52</div>
                                                                                                    </td>
                                                                                                    <td id="x-auto-645" class="x-grid3-col x-grid3-cell x-grid3-td-avgLatency " style="width:73px;" role="gridcell">
                                                                                                        <div class="x-grid3-cell-inner x-grid3-col-avgLatency" unselectable="on">190</div>
                                                                                                    </td>
                                                                                                    <td id="x-auto-646" class="x-grid3-col x-grid3-cell x-grid3-td-avgLoss " style="width:53px;" role="gridcell">
                                                                                                        <div class="x-grid3-cell-inner x-grid3-col-avgLoss" unselectable="on">0.79</div>
                                                                                                    </td>
                                                                                                    <td id="x-auto-647" class="x-grid3-col x-grid3-cell x-grid3-td-avgJitter " style="width:58px;" role="gridcell">
                                                                                                        <div class="x-grid3-cell-inner x-grid3-col-avgJitter" unselectable="on">31</div>
                                                                                                    </td>
                                                                                                    <td id="x-auto-648" class="x-grid3-col x-grid3-cell x-grid3-td-avgMOS x-grid3-cell-last " style="width:53px;" role="gridcell">
                                                                                                        <div class="x-grid3-cell-inner x-grid3-col-avgMOS" unselectable="on">3.98</div>
                                                                                                    </td>
                                                                                                    </tr>
                                                                                                </tbody>
                                                                                            </table>
                                                                                        </div>
                                                                                    </div>                                                                                                          

After much (much) troubleshooting it turned out that I had a slight mistake on my Xpath. From my html

<div id="QosDashboardPanel0" ...

I was not accounting for multiple tabs. In my AUT I was opening a new tab, not a new browser tab but a tab in the application itself, and the whole Hmtl would remain the same except the snippet above would change to

<div id="QosDashboardPanel1" ...

I was assuming that the ID wouldn't change, well lesson learned! This is why I was running into the 'not able to click an invisible element', the element was in fact there but it was hidden behind my active tab.

Not much of a solution but I hope if someone is running into something similar this at least points them in the correct direction or makes a bell go off.

The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM