### Element UI
Image Component Documentation
and Examples
Element UI provides a versatile `el-
image` component designed specifically for h
andling
images within applications efficiently. The following details cover its usage, properties, events, slots,
and methods.
#### Basic Usage Example
To integrate the `el-
image` in
to your project, ensure that Element UI is installed
and imported correctly. Below demonstrates
how to use this component:
```html
<template>
<div class="demo-
image">
<div class="block" v-for="fit in fits" :key="fit">
<sp
an>{{ fit }}</sp
an>
<el-
image style="width: 100px; height: 100px" :src="
url" :fit="fit"></el-
image>
</div>
</div>
</template>
<script>
export default {
data() {
return {
url: 'https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg',
fits: ['fill', 'contain', 'cover', 'none', 'scale-down']
};
}
};
</script>
```
The above code snippet s
howcases different fitting options available when displaying
an image through the `el-
image` tag[^1].
#### Properties Explained
Several attributes c
an cus
tomize the behavior of the displayed
image:
- **alt**: Alternative text description.
- **src**: Source
URL string pointing
towards the desired
image file location.
- **lazy**: Boole
an flag enabling lazy
loading functionality which
loads only visible elements initially improving perform
ance especially on pages containing m
any
images.
- **scroll-container**: Selec
tor identifying container element responsible for triggering scroll event used alongside lazy
load feature.
- **preview-src-list**: Array holding
URLs intended for preview mode allowing users
to view larger versions upon clicking smaller thumbnails.
- **z-index**: Controls stacking order during previews ensuring proper layering among multiple overlapping components.
- **referrerpolicy**: Specifies referrer information included while fetching resources adheres W3C specification guidelines enh
ancing security measures against potential leaks.
These configurable parameters provide flexibility catering various requirements r
anging simple static displays up till complex interactive galleries.
#### Events Supported
Event listeners attached directly on
to `<el-
image>` tags allow developers
to react accordingly based on user interactions or internal state ch
anges like successful fetch completion (`
load`) or failure (`error`). H
andling these scenarios gracefully ensures robustness under unpredictable network conditions maintaining good UX st
andards expected
today's web apps.
#### Slots Available
Cus
tomization extends beyond mere attribute settings th
anks
to named slot support offering greater control over layout design aspects including but not limited
to placeholder visuals s
hown before actual media becomes ready after being fetched remotely from servers across internet connections varying speeds reliability levels etcetera:
- **default**: Content rendered inside cus
tom placeholders until main object fully
loaded replacing temporary markers seamlessly once completed without disrupting overall flow experience negatively impacting end-users perception quality service provided online platforms striving excellence every aspect interaction possible.
In summary, mastering utilization possibilities offered via comprehensive set features embedded within `el-
image` empowers crea
tors build visually appealing interfaces capable delivering rich multimedia experiences effortlessly meeting modern expectations effectively addressing diverse needs audiences worldwide seeking engaging digital spaces fostering communication collaboration innovation alike.
本文介绍如何使用PictureBox加载来自HTTP URL的图像。提供了两种方法：一是通过WebRequest创建并获取响应流；二是利用WebClient的OpenRead方法。作者尝试了第一种方法并成功实现。
pictureBox1.Image = Image.FromStream(System.Net.WebRequest.Create(http://www.baidu/new.gif ).GetResponse().GetResponseStream());
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