在@Razor之类的aspx页面中呈现动态HTML控件数？

Question

I know we can put a placehold on aspx page, then add controls dynamically from backend code. Is there a way in aspx page that is similar to @razor engine that we can add html control directly in aspx page?

<% 
    int count = GetImageCount();
    for (int k = 0; k < count; k++)
    {
        string id = "img_" + k.ToString();
%>
        <asp:Image runat="server" ImageAlign="Middle" />

<%                    
    }                   
%>

We can use above code to add multiple Image control in aspx page, but how can we set them with different id and src?

Or, we can not do this in aspx directly?

thanks

Answer 1

You cannot set ID for server controls dynamically. Also, as far as I am aware of, setting ImageUrl direclty in aspx for the control in for loop, like in your code, might not be possible - you should probably take a look and asp:Repeater control.

To achieve what you want, you might find useful this piece of code, using HTML <img> control (as @Grundy suggested), instead of asp:Image control:

<% int count = 5;
    for (int i = 0; i < count; i++)
    {
        string id = "id_" + i;
        string imageUrl = "/Images/img_" + i;
%>
    <img id="<%=id%>" src="<%=imageUrl%>"/>
<% 
    }
%>