我有一个gridview,因为每行有3个文本框.
如果我按下向下箭头,它应该转到下一行文本框
如果我按向上键,那么它应该去前一行文本框.
左右箭头键相同.
这是我的代码.
<script type="text/javascript" language="javascript">
$(document).ready(function () {
$("body").keydown(function (e) {
var row;
debugger;
if (e.keyCode == 39) {
row = $(this).closest('td').next();
row.find('input').focus();
}
else if (e.keyCode == 37) {
row = $(this).closest('td').prev();
row.find('input').focus();
}
else if (e.keyCode == 40) //down arrow key code
{
row = $(this).closest('tr').next();
row.closest('td').next().find('.masked').focus();
}
else if (e.keyCode == 38) // up arrow key code
{
row = $(this).closest('tr').next();
row.closest('td').prev().find('.masked').focus();
}
}); //this code detect is it up or down arrow
});
</script>
HTML派生代码
' <tr>
<td style="width:1%;">
<td style="width:3%;">
<td style="width:3%;">
<td style="width:3%;">
<td style="width:3%;">
<td style="width:5%;">
<input id="ContentPlaceHolderMain_grdDistanceLog_txttime_0" class="masked ui-mask" type="text" style="width:50px;display:block;" maxlength="8" name="ctl00$ContentPlaceHolderMain$grdDistanceLog$ctl02$txttime">
<span id="ContentPlaceHolderMain_grdDistanceLog_lbltime_0" style="display:none;"></span>
</td>
<td style="width:3%;">
<td style="width:3%;">
<td style="width:3%;">
<td style="width:3%;">
<td style="width:7%;">
<td style="width:3%;">
<td style="width:4%;">
</tr>
<tr class="alt">
<td style="width:1%;">
<td style="width:3%;">
<td style="width:3%;">
<td style="width:3%;">
<td style="width:3%;">
<td style="width:5%;">
<input id="ContentPlaceHolderMain_grdDistanceLog_txttime_1" class="masked ui-mask" type="text" style="width:50px;display:block;" maxlength="8" name="ctl00$ContentPlaceHolderMain$grdDistanceLog$ctl03$txttime">
<span id="ContentPlaceHolderMain_grdDistanceLog_lbltime_1" style="display:none;"></span>
</td>
<td style="width:3%;">'
最佳答案 如果没有HTML,这就更多的是猜测,但它看起来像是row.closest(‘td’).next()没有得到你正在寻找的TD.
尝试:
…
{
row = $(this).closest('tr').next();
row.find('td').find('.masked').focus();
}
else if (e.keyCode == 38) // up arrow key code
{
row = $(this).closest('tr').next();
row.find('td').find('.masked').focus();
}
编辑:
随着HTML的到位,在我看来,现在的问题是$(这个)不是你当前关注的元素,正如你所期望的那样,而是$(文档),你在那里解雇了keydown事件.首先尝试选择聚焦元素:
$(document).ready(function () {
$("body").keydown(function (e) {
var row;
var focusedElement = $(document.activeElement);
debugger;
if (e.keyCode == 39) {
row = $(focusedElement).closest('td').next();
row.find('input').focus();
}
else if (e.keyCode == 37) {
row = $(focusedElement).closest('td').prev();
row.find('input').focus();
}
else if (e.keyCode == 40) //down arrow key code
{
row = $(focusedElement).closest('tr').next();
row.find('td').find('.masked').focus();
}
else if (e.keyCode == 38) // up arrow key code
{
row = $(focusedElement).closest('tr').next();
row.find('td').find('.masked').focus();
}
});
});