How to set property to Guid in aspx page

Question

I have the following code in one of my aspx pages:

<% foreach (Dependency dep in this.Common.GetDependencies(this.Request.QueryString["Name"]))
   { %>
        <ctl:DependencyEditor DependencyKey='<%= dep.Key %>' runat="server" />
<% } %>

When I run it, I get the following error:

Parser Error Message: Cannot create an object of type 'System.Guid' from its string representation '<%= dep.Key %>' for the 'DependencyKey' property.

Is there any way that I can create a control and pass in a Guid in the aspx page? I'd really hate to have to loop through and create these controls in the code behind just because of that...

NOTE: The Key property on the Dependency object is a Guid.

Answer 1

The key property of the Dependency object may be a Guid, but is the DependencyKey Property of the DependencyEditor a Guid too? If not it should be, otherwise the correct TypeConverter won't be invoked upon assignment.

If I'm not mistaken, you could also use dep.Key.ToString() also.

Answer 2

is your control taking the value and assuming its a GUID? Have you tried instantiating a GUID with the value? Looks like this is a cast problem

Answer 3

ok, here's the deal...try using the # symbol instead of the = symbol. I replicated your problem and that gets past the compile issue.

It should look like this "<%# dep.Key %>"

good luck!

Answer 4

Assuming dep.Key is a string representation of a guid... and DependencyKey is a property of type Guid

    <ctl:DependencyEditor DependencyKey="<%= new Guid(dep.Key) %>" runat="server" />