How to select radio button in selenium webdriver ? dynamic select of radio button

Question

<tbody>
<tr class="odd">
<td>
<input id="nodeAccountOid" type="radio" onclick="setNodeAccountIdToCredentialCheck('E9E2930C4493B569E040A8C0158E4ABD');" style="width:100%;border:0px">
</td>
<td>E9E2930C4493B569E040A8C0158E4ABD</td>
<td>monacho1</td>
<td>urn:dece:org:org:dece:dece:cs</td>
</tr>
<tr class="even">
<td>
<input id="nodeAccountOid" type="radio" onclick="setNodeAccountIdToCredentialCheck('E9E2930C4494B569E040A8C0158E4ABD');" style="width:100%;border:0px">
</td>
<td>E9E2930C4494B569E040A8C0158E4ABD</td>
<td>monacho1</td>
<td>urn:dece:org:org:dece:coord:cs</td>
</tr>
<tr class="odd">
<td>
<input id="nodeAccountOid" type="radio" onclick="setNodeAccountIdToCredentialCheck('E9E2930C4495B569E040A8C0158E4ABD');" style="width:100%;border:0px">
</td>
<td>E9E2930C4495B569E040A8C0158E4ABD</td>
<td>monacho1</td>
<td>urn:dece:org:org:dece:300</td>
</tr>
<tr class="even">
<td>
<input id="nodeAccountOid" type="radio" onclick="setNodeAccountIdToCredentialCheck('E9E2930C4495B569E040A8C0158E4ABD');" style="width:100%;border:0px">
</td>
<td>E9E2930C4495B569E040A8C0158E4ABD</td>
<td>monacho1</td>
<td>urn:dece:org:org:dece:10</td>
</tr>
</tbody>
</table>

i want to select the radio button corresponding to urn:dece:org:org:dece:10 which is fourth row in the html provided. the row may change sometimes based on some inputs in AUT. please provide me the way to select it.

thanks in advance

Answer 1

Since the text never changes, you can use that as a starting point within the DOM, and use XPath to navigate through to the input you need:

//td[.='urn:dece:org:org:dece:10']/parent::tr/descendant::input[@id='nodeAccountOid' and @type='radio']

1. Get the td that has it's text equal to urn:dece:org:org:dece:10

2. Get that td 's parent tr

3. From that parent tr , get the input that has an id equal to nodeAccountOid and has a type of radio .

Therefore it doesn't matter where exactly the elements are, as long as the XPath locator can navigate up to the parent and back down again to the input you need.

Answer 2

The problem you are facing is to locate a certain element in the web page that may occur in different positions. If there is another element which can be identified easily by its content, id or name and there is a static relation between this element and the one you would like to locate, then you could use xpath. There are also some examples for this in the selenium documentation as far as I know.