check whether maximum one check box should be checked in a grid rows?

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Hi friends,

I am using VS 2005,.net framework 2,asp.net,c#.net
I have a gridview which contains a checkbox in an template column.
I want to check whether maximum one check box should be checked in the grid rows?
Is it possible to do it in Javascipt?

George

Posted 3-Jun-12 21:38pm

george@84

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Michael_Jacsi · Answer 1 · 2012-06-03T22:32:00

Same Concept i am using Radio Button so you Change it according your way Its may helps to you

XML

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
            DataKeyNames="AuthId">
            <Columns>
            <asp:TemplateField ShowHeader="false">
            <ItemTemplate>
            <asp:RadioButton ID="rdbauthid" runat="server" onclick="javascript:CheckOtherIsCheckedByGVID(this);" />
            </ItemTemplate>
            </asp:TemplateField>
            <asp:BoundField HeaderText="AUTHOR NAME" DataField="AuthName" />
            <asp:BoundField HeaderText="AUTHOR LOCATION" DataField="AuthLocation" />
            </Columns>
        </asp:GridView>

XML

<script type="text/javascript">
            function CheckOtherIsCheckedByGVID(spanChk) {

                var IsChecked = spanChk.checked;
                if (IsChecked) {
                    spanChk.parentElement.parentElement.style.backgroundColor = '#228b22';
                    spanChk.parentElement.parentElement.style.color = 'white';
                }
                var CurrentRdbID = spanChk.id;
                var Chk = spanChk;
                Parent = document.getElementById("<%=GridView1.ClientID%>");
                var items = Parent.getElementsByTagName('input');
                for (i = 0; i < items.length; i++) {
                    if (items[i].id != CurrentRdbID && items[i].type == "radio") {
                        if (items[i].checked) {
                            items[i].checked = false;
                            items[i].parentElement.parentElement.style.backgroundColor = 'white'

                            items[i].parentElement.parentElement.style.color = 'black';
                        }
                    }
                }
            }
</script>

Linto Leo Tom · Answer 2 · 2012-06-03T23:27:00

Solution 2

Hi,
You can use jQuery also.

Something like this

JavaScript

function ValidateCheckboxes(oButton, oEvent){
 if($("input:checked").length==0){
   Alert("Select Any Check Boxes")
   oEvent.cancel = true;
  } }

Here I am calling this in the click of a button. Alter this as your need.

Happy Coding :)

Posted 3-Jun-12 23:27pm

Linto Leo Tom

Updated 3-Jun-12 23:29pm

v2