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As per my understanding, automatic slideshow is not supported in OOTB Image Gallery web-part as of now. However you can develop a custom web part using SharePoint Framework. There are already developed samples for the same. Check below references. References: React Carousel Web Part. SharePoint Framework - React-based Carousel.


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Use the Image gallery web part to share collections of pictures on a page. Select your images with the file picker or drag them onto the web part. With the Tiles layout, you can choose an aspect ratio (1:1,16:9, or 4:3), and you can drag and drop images within the web part to reorder them. With the Carousel layout, you can set whether to automatically ...


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This is throwing an error because you are using setState method in your autoPlay attribute, which returns void after setting the state. Try using something like below: <Carousel dynamicHeight={true} showThumbs={false} > {this.state.items.map((imageList, key) => { if (imageList.SourceType == "Video") { this.setState({ autoplayvideo: ...


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You can try using this: <video width="320" height="240" controls> <source src={ imageList.Image ? imageList.Image["Url"] : '' } type="video/mp4"> Text if video is not loaded </video> where type is optional. instead of: <video src = { imageList.Image ? imageList.Image["Url"] : '' }> </video>


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