听着关键pressed事件剃刀 [英] Listening to the keyPressed event, Razor
本文介绍了听着关键pressed事件剃刀的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
<body>
<table align="center" width="100%" height="100%">
<tr>
<td align="center" id="previousPhoto">
@if (Model.HasPreviousPhoto)
{
if (Model.CurrentPhotoIndex == 0)
{
<a href="@HrefHelper.ToPhoto(Model.Title, Model.CurrentPageIndex - 1, maxPhotosOnThePage)">
<section class="navSection">
<img class="previousPhoto" src="@Url.Content("~/Content/Icons/arrows.png")" />
</section>
</a>
}
else
{
<a href="@HrefHelper.ToPhoto(Model.Title, Model.CurrentPageIndex, Model.CurrentPhotoIndex - 1)">
<section class="navSection">
<img class="previousPhoto" src="@Url.Content("~/Content/Icons/arrows.png")" />
</section>
</a>
}
}
else
{
<section class="navSection"></section>
}
</td>
<td class="photoPlaceholder" align="center">
<section class="photoSection">
<img src="@Model.CurrentPhoto.GenerateSrcHTML()" />
</section>
</td>
<td align="center" id="nextPhoto">
@if (Model.HasNextPhoto)
{
if (Model.CurrentPhotoIndex == maxPhotosOnThePage)
{
<a href="@HrefHelper.ToPhoto(Model.Title, Model.CurrentPageIndex + 1, 0)">
<section class="navSection">
<img src="@Url.Content("~/Content/Icons/arrows.png")" />
</section>
</a>
}
else
{
<a href="@HrefHelper.ToPhoto(Model.Title, Model.CurrentPageIndex, Model.CurrentPhotoIndex + 1)">
<section class="navSection">
<img src="@Url.Content("~/Content/Icons/arrows.png")" />
</section>
</a>
}
}
else
{
<section class="navSection"></section>
}
</td>
</tr>
</table>
现在我要听左/右箭头keydown事件和火一样的动作为这些链接做的。据我了解，这不能没有JS帮助下完成的，对不对？我是pretty新的ASP.NET特别是对JS，这样可以ü的人只是告诉我要达到上述的最佳方式？
Now I need to listen to the left/right-arrows keydown event and to fire same action as those links do. As I understand, this can't be done without JS help, right? I am pretty new to ASP.NET and especially to JS, so can someone of u just show me the best way to achieve described above?
推荐答案
您将需要添加的js的片段视图
You will need to add a snippet of js in the view
<script>
document.addEventListener('keydown', function(e){
//37 is left arrow, 39 is right arrow
if(e.which === 37){
document.getElementById('previousPhoto').getElementsByTagName('a')[0].click();
} else if (e.which === 39) {
document.getElementById('nextPhoto').getElementsByTagName('a')[0].click();
}
});
</script>
这篇关于听着关键pressed事件剃刀的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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