Difference between <% # .....%> and <% = ......%>

ymooner

I tried it. In fact, # also has the function of =, which means that wherever <% = ......%> appears, it can also be replaced with <% # ......%>, which has the same effect.
Your experiment is wrong

qdpoplee

# Bind database fields
= Is a public variable in the binding cs file
#Only valid in the context of bound data.
= Is Response.Write

迟到的影子

<%%> is writing server code in html, but accessing common member variables, for example
a.aspx.cs defines public datatable dt;
In a.aspx.source you can access dt in <%%>

niaobiede

So lively
<%%> This kind of thing is inherited from ASP
Now ASP.NET has a # in many places, my point is that it is used in the bound control, the reference to the data source of the bound control

lzy2001

<%=......%> = Response.Write()
<%#......%> Data binding only works when running Object.DataBind()

wsry82

<%# %> binding
<%= %> Can be bound to public members in the background

wdh3139593

ASP used to use =

3521565

Halo, this problem



<%# %> Bind the writing method, calculate the value when calling the DATABIND() method in the background, and use the value instead of the page to display HTML
<%= %> Run the code on the server side, calculate the value when parsing the page, display HTML, the same reason as the previous ASP server-side code

As can be seen from the above introduction, <%# %>, <%= %> are different concepts, they also run at different times, according to the life cycle of a page, first execute the background CS code, and then parse the ASPX page, you can Know that <%# %> runs before <%= %>

You can verify it with an example

tiffany

Asymooner,3521565said!
<%# %> is used for data binding, but the program can also be executed
<% %> is used to execute server-side running code