velovity页面中如何使用条件禁用按钮

[摩卡sky]

我再页面有个排序的功能，可以通过点击事件，将数据上下移动，但现在第一条上移和最后一条下移会报错，所以我想通过JS或者别的判断来禁用最上一条和最下一条的按钮，有什么办法吗？求解答

代码如下
<table class="table table-hover" id="table1">
<thead>
<tr>
<!--<th width="5px">ID</th>-->

<th >时间</th>
<th>操作</th>
<th>排序</th>

</tr>
<thead>
<tbody>
#foreach($data in $!{listData})
<tr>

<td>$!{data.insertTime}</td>
<td>
<a href="pm_help_editUI.do?id=${data.id}" class="btn btn-success btn-sm">编辑</a>
<a href="pm_help_delete.do?id=${data.id}" class="btn btn-danger btn-sm" onclick="return confirm('是否删除该更新信息')">删除</a>
</td>
<td>
下面这两条是我要禁用的按钮

<a href="pm_help_moveup.do?sortid=${data.sortid}&id=$!{data.id}"class="btn btn-success btn-sm" onclick="return moveUp(this)">上移</a>
/
<a href="pm_help_movedown.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm" onclick="return moveDown(this)">下移</a>
</td>
</tr>
#end
<tbody>
</table>

java velovity html5 css3

[Null_Reference]

<a href="pm_help_moveup.do?sortid=${data.sortid}&id=$!{data.id}"class="btn btn-success btn-sm" onclick="return moveUp(this)">上移</a> onclick="return false;"

[摩卡sky]

引用 2 楼 ly12530 的回复:

<a href="pm_help_moveup.do?sortid=${data.sortid}&id=$!{data.id}"class="btn btn-success btn-sm" onclick="return moveUp(this)">上移</a> onclick="return false;"

额。。。。我不是一条数据的，， id 内容 操作 1 呵呵 上移 下移 2 哈哈 上移 下移 3 嘿嘿 上移 下移 我是这种的，现在要第一条不能上移和最后一条不能下移，直接 return false 的话，上移全部能用了= =

[Null_Reference]

 <table class="table table-hover" id="table1">
            <thead>
                <tr>
                    <!--<th width="5px">ID</th>-->
                    
                    <th>时间</th>
                    <th>操作</th>
                    <th>排序</th>

                </tr>
                <thead>
            <tbody>
               
    	<tr>
            
                                 	  <td>111</td>
            <td>
                <a href="pm_help_editUI.do?id=${data.id}" class="btn btn-success btn-sm">编辑</a>
                <a href="pm_help_delete.do?id=${data.id}" class="btn btn-danger btn-sm" onclick="return confirm('是否删除该更新信息')">删除</a>
            </td>
            <td>

    	<a href="pm_help_moveup.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm up" onclick="return moveUp(this)">上移</a>
                /
                <a href="pm_help_movedown.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm down" onclick="return moveDown(this)">下移</a>
            </td>
        </tr>
               <tr>
            
                                 	  <td>222</td>
            <td>
                <a href="pm_help_editUI.do?id=${data.id}" class="btn btn-success btn-sm">编辑</a>
                <a href="pm_help_delete.do?id=${data.id}" class="btn btn-danger btn-sm" onclick="return confirm('是否删除该更新信息')">删除</a>
            </td>
            <td>

    	<a href="pm_help_moveup.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm up" onclick="return moveUp(this)">上移</a>
                /
                <a href="pm_help_movedown.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm down" onclick="return moveDown(this)">下移</a>
            </td>
        </tr>
                <tr>
            
                                 	  <td>333</td>
            <td>
                <a href="pm_help_editUI.do?id=${data.id}" class="btn btn-success btn-sm">编辑</a>
                <a href="pm_help_delete.do?id=${data.id}" class="btn btn-danger btn-sm" onclick="return confirm('是否删除该更新信息')">删除</a>
            </td>
            <td>

    	<a href="pm_help_moveup.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm up" onclick="return moveUp(this)">上移</a>
                /
                <a href="pm_help_movedown.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm down" onclick="return moveDown(this)">下移</a>
            </td>
        </tr>
    	<tbody>
        </table>

 $("#table1 tr .up").first().attr("onclick", "return false;");
        $("#table1 tr .up").last().attr("onclick", "return false;");

方法有很多。。。

[业余草]

disabled=“true”

[摩卡sky]

引用 4 楼 ly12530 的回复:

 <table class="table table-hover" id="table1">
            <thead>
                <tr>
                    <!--<th width="5px">ID</th>-->
                    
                    <th>时间</th>
                    <th>操作</th>
                    <th>排序</th>

                </tr>
                <thead>
            <tbody>
               
    	<tr>
            
                                 	  <td>111</td>
            <td>
                <a href="pm_help_editUI.do?id=${data.id}" class="btn btn-success btn-sm">编辑</a>
                <a href="pm_help_delete.do?id=${data.id}" class="btn btn-danger btn-sm" onclick="return confirm('是否删除该更新信息')">删除</a>
            </td>
            <td>

    	<a href="pm_help_moveup.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm up" onclick="return moveUp(this)">上移</a>
                /
                <a href="pm_help_movedown.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm down" onclick="return moveDown(this)">下移</a>
            </td>
        </tr>
               <tr>
            
                                 	  <td>222</td>
            <td>
                <a href="pm_help_editUI.do?id=${data.id}" class="btn btn-success btn-sm">编辑</a>
                <a href="pm_help_delete.do?id=${data.id}" class="btn btn-danger btn-sm" onclick="return confirm('是否删除该更新信息')">删除</a>
            </td>
            <td>

    	<a href="pm_help_moveup.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm up" onclick="return moveUp(this)">上移</a>
                /
                <a href="pm_help_movedown.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm down" onclick="return moveDown(this)">下移</a>
            </td>
        </tr>
                <tr>
            
                                 	  <td>333</td>
            <td>
                <a href="pm_help_editUI.do?id=${data.id}" class="btn btn-success btn-sm">编辑</a>
                <a href="pm_help_delete.do?id=${data.id}" class="btn btn-danger btn-sm" onclick="return confirm('是否删除该更新信息')">删除</a>
            </td>
            <td>

    	<a href="pm_help_moveup.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm up" onclick="return moveUp(this)">上移</a>
                /
                <a href="pm_help_movedown.do?sortid=${data.sortid}&id=$!{data.id}" class="btn btn-success btn-sm down" onclick="return moveDown(this)">下移</a>
            </td>
        </tr>
    	<tbody>
        </table>

 $("#table1 tr .up").first().attr("onclick", "return false;");
        $("#table1 tr .up").last().attr("onclick", "return false;");

方法有很多。。。

我用父节点的方法解决了，虽然没用到你的，不过非常感谢你的耐心，谢谢。