Javascript validation for radio button list in grid view.

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I have a grid view.

I have 100 rows

in each row i have radio button list.

how to validate whether radio button is selected in each row or not?

Posted 8-Dec-13 18:59pm

nandakishoreroyal

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 9-Dec-13 1:45am

What have you tried and where is the problem?

2 solutions

Solution 1

Refer here,
http://forums.asp.net/t/1841179.aspx[^]

Posted 8-Dec-13 19:16pm

Thomas ktg

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Karthik_Mahalingam · Accepted Answer · 2013-12-08T19:45:00

hi Nanda kishore

Try this code..

XML

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <script type="text/javascript">

        var validateradios = function () {

            var icount = 0;
            var grid = document.getElementById('<%=GridView1.ClientID %>');
            for (var i = 1; i < grid.rows.length; i++) {

                var row = grid.rows[i];
                var targetcell = row.cells[0];
                var inputs = targetcell.getElementsByTagName("input");

                for (var j = 0; j < inputs.length; j++)
                    if (inputs[j].checked) {
                        icount++; break;
                    }

            }

            if (icount == (grid.rows.length - 1))
                alert(' all rows checked');
            else
                alert('some rows need to be checked');

        }

    </script>
</head>
<body>
    <form id="form1" runat="server">
    <asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="validateradios(); return false;" />
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Width="100%">
        <Columns>
            <asp:TemplateField>
                <ItemTemplate>
                    <asp:RadioButtonList ID="rdb" runat="server">
                        <asp:ListItem Text="Apple"></asp:ListItem>
                        <asp:ListItem Text="Orange"></asp:ListItem>
                        <asp:ListItem Text="Grapes"></asp:ListItem>
                    </asp:RadioButtonList>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    </form>
</body>
</html>

Code Behind:

C#

protected void Page_Load(object sender, EventArgs e)
        {
            if (Page.IsPostBack) { }
            {
                GridView1.DataSource = Enumerable.Range(0,3);
                GridView1.DataBind();
            }
        }