How to 'bind' Text property of a label in markup

Question

Basically I would like to find a way to ddo something like:

<asp:Label ID="lID" runat="server" AssociatedControlID="txtId" Text="<%# MyProperty %>"></asp:Label>

I know I could set it from code behind (writing lId.Text = MyProperty), but I'd prefer doing it in the markup and I just can't seem to find the solution. (MyProperty is a string property) cheers

Answer 1

Call lID.Databind() from code-behind

Answer 2

Leave the markup as is and make a call to Page.DataBind(); in your code behind.

Answer 3

<asp:Label id="lID" runat="server"><%= MyProperty %></asp:Label>

since asp.net tags do not allow <% %> constructs, you cannot use Text="<%= MyProperty %>".

Answer 4

<div> <%=MyProperty"%></div>

Answer 5

You can do

<asp:Label runat="server" Text='<#= MyProperty %>' />

And then a Page.DataBind() in the codebehind.

Answer 6

When you use <%# MyProperty %> declaration you need to databind it, but when using <%= MyProperty %> you don't (which is similar to just writing Response.Write(MyProperty).

Answer 7

Code expressions are an option as well. These can be used inside of quotes in ASP tags, unlike standard <%= %> tags.

The general syntax is:

<%$ resources: ResourceKey %>

There is a built-in expression for appSettings:

<%$ appSettings: AppSettingsKey %>

More info on this here: http://weblogs.asp.net/infinitiesloop/archive/2006/08/09/The-CodeExpressionBuilder.aspx

Answer 8

You can do this: Last update: <%=DateTime.Now.ToString()%> no problem...