Question

What is the quickest way to obtain the next node of a line using jQuery? Here is the generated markup of a TreeList which is a type of GridView asp.net. I have to have to obtain the lblWorkItemId which is 199. Please consider that this is from a bound control.

<tr id="ctl00_PageContent_rtlRshItems_ctl04__2" class="rtlR rtlRL" style="background-color:Lavender;">

<td align="left" valign="middle" style="width:90px;">
    <div id="ctl00_PageContent_rtlRshItems_ctl04_rcbStatut" class="RadComboBox RadComboBox_Windows7">
        <table class="rcbFocused" style="border-width: 0pt; border-collapse: collapse;" summary="combobox">
            <tbody>
                <tr class="rcbReadOnly">
                    <td class="rcbInputCell rcbInputCellLeft" style="width:100%;">
                        <input id="ctl00_PageContent_rtlRshItems_ctl04_rcbStatut_Input" class="rcbInput" type="text" readonly="readonly" value="Submitted" name="ctl00$PageContent$rtlRshItems$ctl04$rcbStatut" autocomplete="off">
                    </td>
                    <td class="rcbArrowCell rcbArrowCellRight">
                        <a id="ctl00_PageContent_rtlRshItems_ctl04_rcbStatut_Arrow" style="overflow: hidden;display: block;position: relative;outline: none;">select</a>
                    </td>
                </tr>
            </tbody>
        </table>

        <input id="ctl00_PageContent_rtlRshItems_ctl04_rcbStatut_ClientState" type="hidden" name="ctl00_PageContent_rtlRshItems_ctl04_rcbStatut_ClientState" autocomplete="off">
    </div>
</td>

<td class=" rtlCL" style="width:0px;">
    <asp:label id="lblWorkItemId" text="199" visible="false"> </asp:label>
</td>

The following javascript method will be called when the selected value of the combobox will be changed to a certain value:

    function OnClientSelectedIndexChanged(sender, eventArgs) {
        var item = eventArgs.get_item();
        if (item.get_text() == "Refused") {
            var treeList = $find("<%= rtlRshItems.ClientID %>");
            // var workItemId = [...]
            OpenReasonWindow(workItemId);
        }
    }

Answer 1

Using your code template:

    function OnClientSelectedIndexChanged(sender, eventArgs) {
        var item = eventArgs.get_item();
        if (item.get_text() == "Rejetée") {
            var combo = $('input[id*="rcbStatut_Input"]')
            var workItemId = combo.closest('tr.rtlRL').find('[id$="lblWorkItemId"]').attr('text');
            OpenReasonWindow(workItemId);
        }
    }

Note: I would typically apply this sort of handler unobtrusively, not in mark up.