Question

Ok guys and gals, here is my problem:

I’ve built a custom control that uses a textbox to present data to the user.

When the user interacts with the control the value of that textbox is altered with client side javascript.

I also have a button on my page. When the user clicks the button I want to take the value from the custom control (aka. the textbox) and use it elsewhere.

So, in the onClick event for the button I do something like this:

this.myLabel.Text = this.customControl.Value; 

The problem is that the custom control does not have the new textbox value available. In the custom control the textbox is empty. However, I can see the correct value in the Request.Form collection.

Am I doing something wrong here? Or should I be reading from Request.Form?!

Answer 1

Ah ha! I’ve solved my own problem!

Because I had set Readonly=’True’ on the textbox control ASP.NET was not picking up it’s value from the postback.

Instead I should have manually added the readonly attribute to the textbox during my user control construction.

eg.

this.textBox.Attributes.Add('readonly', 'readonly');