selecting single radio button

Question

3.80/5 (4 votes)

See more:

I have radio buttons in a grid view.
I need to select only one radio button at a time.

I am facing a problem since more than one radio button is getting selected.

I have the following code in script side:

XML

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns ="False" OnSelectedIndexChanged="GridView1_SelectedIndexChanged1">
                <Columns>
                <asp:BoundField DataField ="Column1" HeaderText ="ProductName"  />
                <asp:BoundField DataField ="Column2" HeaderText ="ProductID" />
                <asp:TemplateField >
                <ItemTemplate>
                <asp:RadioButton  ID ="radioButton1" runat="server" GroupName ="productDB" AutoPostBack ="true" OnCheckedChanged ="Rb_CheckChanged" />
                </ItemTemplate></asp:TemplateField>
                </Columns>
                </asp:GridView>

And in .cs file I have the following code:

C#

foreach (GridViewRow row in GridView1.Rows)
        {
            RadioButton rb1 = (RadioButton)row.Cells[0].FindControl("RadioButton1");
            if (rb1 != null)
            {
                if (rb1.Checked == true)
                {
                    row.BackColor = Color.Yellow;
                    String drugId = (String)row.Cells[1].Text.ToString();
                    }
            }

Let me know what changes has to be made so that only one radio button is selected.

Posted 19-Apr-11 3:00am

bsb25

Updated 19-Apr-11 22:07pm

Dalek Dave

v2

Add a Solution

Comments

Dalek Dave 20-Apr-11 4:07am

Edited for Grammar and Readability.

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Pratik Bhesaniya · Accepted Answer · 2011-04-19T03:31:00

You have to Group your all Radio Button With the same Name like below,

<pre lang="xml"><asp:GridView ID="GridView1" runat="server" AutoGenerateColumns ="False" OnSelectedIndexChanged="GridView1_SelectedIndexChanged1">
                <Columns>
                <asp:BoundField DataField ="Column1" HeaderText ="ProductName"  />
                <asp:BoundField DataField ="Column2" HeaderText ="ProductID" />
                <asp:TemplateField >
                <ItemTemplate>
                <asp:RadioButton  ID ="radioButton1" runat="server" GroupName ="productDB" AutoPostBack ="true" OnCheckedChanged ="Rb1_CheckChanged" />
<asp:RadioButton  ID ="radioButton2" runat="server" GroupName ="productDB" AutoPostBack ="true" OnCheckedChanged ="Rb2_CheckChanged" />
<asp:RadioButton  ID ="radioButton3" runat="server" GroupName ="productDB" AutoPostBack ="true" OnCheckedChanged ="Rb3_CheckChanged" />
                </ItemTemplate></asp:TemplateField>
                </Columns>
                </asp:GridView>

As you can see i have given a Same name to all 3 radio buttons {GroupName =productDB}

I hope this will help you.

Manfred Rudolf Bihy · Accepted Answer · 2011-04-19T03:09:00

Solution 1

You need to group your radio buttons like advocated in this article: How to group RadioButtons[^].

Best Regards,

-MRB

Posted 19-Apr-11 3:09am

Manfred Rudolf Bihy

Comments

fjdiewornncalwe 19-Apr-11 9:36am

Exactly...

Manfred Rudolf Bihy 19-Apr-11 9:45am

Thanks Marcus!

bsb25 20-Apr-11 4:39am

dont we have a solution without adding any user defined functions or groups.
I wanted a solution which uses inbuilt functions in vs.

Dalek Dave 20-Apr-11 4:07am

Good Call Manfred

Ankur^\m/ · Accepted Answer · 2011-04-19T03:16:00

Solution 2

ASP.NET RadioButton control has a property GroupName[^]. All the radio buttons you need to group will have same GroupName.

Hope this helps!

Posted 19-Apr-11 3:16am

Ankur^\m/

Comments

bsb25 20-Apr-11 3:44am

this wont work.Since at runtime every radio button will have different grp name

Ankur^\m/ 20-Apr-11 5:21am

http://www.codeproject.com/KB/webforms/GridViewRadiobuttons.aspx
http://www.asp.net/data-access/tutorials/adding-a-gridview-column-of-radio-buttons-vb
http://weblogs.asp.net/abdullaabdelhaq/archive/2009/08/11/radiobutton-inside-gridview-how-to-get-it-work-as-normal.aspx
Or the best,
http://www.google.co.in/#sclient=psy&num=10&hl=en&site=&source=hp&q=radiobutton+inside+gridview&aq=f&aqi=&aql=&oq=&pbx=1&fp=d4343e1d2edcf461

Dalek Dave 20-Apr-11 4:07am

Nice.

selecting single radio button

3 solutions

Solution 3

Solution 1

Solution 2

Add your solution here

Preview 0

Existing Members

...or Join us