Specific implementation of the preview effect after selection of FileUpload in C#

Preview effect after selecting FileUpload in C

#Implementation method:

HTML:

<asp:FileUpload ID="fupTmpPic" runat="server" onchange="onFileChange(this);" />   
<asp:Image ID="imgDimensionalPic" runat="server" />

JS:

<script type="text/javascript">   
function onFileChange(sender) {   
document.getElementById("imgDimensionalPic").src = window.URL.createObjectURL(sender.files[0]);   
}

Example:

#The above is the specific implementation of the preview effect after selecting FileUpload in C#. For more related content, please pay attention to PHP Chinese website (www.php.cn)!