CODEWITHSUNDEEP
asp.net
proseidon
proseidon

Reputation: 2305

Selecting a value in a RadioButtonList from data in a Repeater control

I have a repeater control, and inside it I have two radio buttons selecting Sex (male, female). When I save the page, I save the selected value, either "M" or "F", into the data. When I load the page, I want the radio button to be selected based on what's saved.

So, in this case, my repeater has (Container.DataItem).Sex, which equals 'M' or 'F'. How can I use this data in my radiobuttons to select the appropriate value?

This is the kind of function I'd like to use (but it doesn't exist):

<asp:RadioButtonList runat="server" SelectedValue='<%# ((Dependent)(Container.DataItem)).Sex %>' />

Please note that I am unable to manipulate the radio buttons in the codebehind because I do not have access to the individual repeater items.

Upvotes: 0

Views: 2719

Answers (3)

Luke Baughan
Luke Baughan

Reputation: 4686

Looking at this answer here Setting selected value on a dropdownlist from codebehind in a repeater in a formview you should be able to do something like:

<asp:RadioButtonList runat="server" SelectedValue='<%# Eval("Sex") %>' />

Upvotes: 1

Icarus
Icarus

Reputation: 63966

Please note that I am unable to manipulate the radio buttons in the codebehind because I do not have access to the individual repeater items.

That's what ItemDataBound is for...

 <asp:Repeater id="Repeater1" OnItemDataBound="repeaterDatabound" runat="server">

And on code behind:

protected void repeaterDatabound(object Sender, RepeaterItemEventArgs e)
{
    if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
    {
        (e.Item.FindControl("Repeater1") as RadioButtonList).SelectedValue=((Dependent)e.Item.DataItem).Sex.ToString();
    }
}

Upvotes: 0

Francis P
Francis P

Reputation: 13655

What you need to do is use 2 RadioButton control (1 for Female, 1 for Male).

Then specify the GroupName in order to unselect one when the other is selected. Let's say GroupName="Sex".

Then specify when each control should be checked according to your DataItem:

<asp:RadioButton ID="radioMale" runat="server" GroupName="Sex" Checked="<%# ((Dependent)(Container.DataItem)).Sex == 'M' %>" />
<asp:RadioButton ID="radioFemale" runat="server" GroupName="Sex" Checked="<%# ((Dependent)(Container.DataItem)).Sex == 'F' %>" />

Upvotes: 1

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