asp.net databind expression not evaluating

Question

The following code:

aspx file:

<div id="challengedIndependence" class="collegeAccentBlock grid_8 push_1" runat="server" clientidmode="Static" style='display:<%# testMethod %>' >

associated aspx.cs file:

  public string testMethod()
    {
        return "none;";
    }

rendered html file:

<div id="challengedIndependence" class="collegeAccentBlock grid_8 push_1" style="display:&lt;%# testMethod %&gt;">
</div>

I am expecting the result to rendder as ...style:"display:none;"... what am I doing wrong.

Not sure if this should be in the same question: I am doing this because I have multiple lines of code to determine whether this div should be displayed. If there is another way of doing this and an explanation as to why it is better I would also accept that answer.

Reference: Inline expressions referenced on MSDN

After Oded's comment I changed the code to use the display expression directive <%= %> which did not work and I m unsure why. The data binding occurs as file.aspx.cs for file.aspx — sammarcow
– sammarcow, Commented Jul 15, 2011 at 16:06

Precious Roy · Accepted Answer · 2011-07-15 14:47:04Z

1

If you're going to use an inline expression here, it needs to be the entire content of that attribute, like this:

<div id="challengedIndependence" class="collegeAccentBlock grid_8 push_1" runat="server" clientidmode="Static" style='<%# testMethod() %>' >

and then return the entire string you want there. It's just rendering it as part of the string.

edited Jul 15, 2011 at 14:47

answered Jul 15, 2011 at 14:40

Precious Roy

1,0861 gold badge10 silver badges19 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

sll · Accepted Answer · 2011-07-15 14:41:54Z

0

Dictate an UI style by code behind looks not right, but anyway try to return whole style string like return "display:none" and bind to style attribute

answered Jul 15, 2011 at 14:41

sll

62.7k22 gold badges109 silver badges157 bronze badges

Collectives™ on Stack Overflow

asp.net databind expression not evaluating

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related