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Question

asp.net radio button grouping

Answer 1

A:

I would start by adding a value on my radiobutton Value='<%#Eval("CustomerNumber") %>'.

Philippe Asselin 2009-08-26 14:15:05

There is not a value attribute for the asp radio button control.

fizch 2009-08-26 14:19:54

He probably meant the 'Text' property. ;)

Ian Kemp 2009-08-26 14:33:34

That's a no go. I knew that it was just going to add a label to it, but I figured that I would try it anyways.

fizch 2009-08-26 14:39:21

Answer 2

+4 A:

Unfortunately, this is a well known issue with radio buttons within a repeater. One of your only options would be to create a custom server control derived from the RadioButton class and override how it renders.

EDIT: Here's a sample of what the derived class may look like:

public class MyRadioButton : RadioButton
{
    protected override void Render(HtmlTextWriter writer)
    {
        writer.Write("<input id=\"" + base.ClientID + "\" ");
        writer.Write("type=\"radio\" ");
        writer.Write("name=\"" + base.ID + "\" ");
        writer.Write("value=\"" + base.ID + "\" >");
        writer.Write(base.Text);
        writer.Write("</input>");
    }
}

CAbbott 2009-08-26 15:12:44

Wow. This is a pretty big hole in functionality. Bleh.

Beska 2009-08-26 15:17:32

This is based on the idea that you could have a radiobutton group within an item template of the repeater (multiple radio buttons on the same row). In that case you would want unique grouping based on the mangled id, but most of the time people want what the OP tried to do.

CAbbott 2009-08-26 15:32:47

Answer 3

+3 A:

I finally got around this by creating a plain radio button and setting the value using an server-side eval.

<input type="radio" name="radCustomer" value='<%#Eval("CustomerNumber") %>' />

Now when the application performs a postback, I check for the value of Request.Form("radCustomer"). This works flawlessly.

fizch 2010-01-26 17:43:23

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asp.net radio button grouping

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