绑定到gridview时，图像路径具有特殊字符

Question

I am trying to bind images to grid-view from path stored in database.

lets say path stored in database is ../Images/Products/ScentTower.png

when the image bind to grid view the path appears this format

`../Images/Products/ScentTower%0d.png`

what is causing that?

<ItemTemplate>
<asp:Image ID="imageControl"  runat="server" ImageUrl='<%# Eval("Picture") %>' />
</ItemTemplate>

Answer 1

如何确保特殊字符不会首先进入您的文件夹/数据库？

Answer 2

%0d is the carriage return character ( \\n ). There is a line break in your file name. I don't know any operating system that allows this, so the best thing to do is make sure you have proper input validation and checks in the database that prevents unwanted characters in your file name.

One way to validate the file name is to check on Path.GetInvalidFileNameChars() . If you don't want to do input validation, you can normalize the image URL by removing or replacing all occurrences from any character in that list.

Answer 3

"%0d" means '\\n'.

Therefore your path stored in database appears like

../Images/Products/ScentTower
    .png 

instead of

 ../Images/Products/ScentTower.png

try to remove any whitespace in column path.