When using the user control, many friends may encounter the path of image links and other elements when the user control is placed on pages in different folders! Some friends think that the system domain name is configured in the configuration file, and then the path in the user control is to read the domain name and add the path under the root directory! In ASP. NET, there is a way to get the root directory of the current system! Server Control: <asp: Image id = "Image1" ruant = server ImageUrl = "~ /Images/img1.jpg "/> Html control: '> use this method !~ /Is to get the root directory of the current system! It can be used in all server controls ~ /To get the root directory of the system, and then go down from the root directory! In html, you can use the ResolveUrl function! This is a good solution!
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