Hi nedash,

Refer the below article.

Validate ASP.Net CheckBoxList using jQuery ValidationEngine Plugin

hi dharmendr

I see your suggested link but see my codes:

<script type="text/javascript">
     function WebForm_OnSubmit() {
        var message = document.getElementById("message");
        message.style.display = "none";
        if (typeof (ValidatorOnSubmit) == "function" && ValidatorOnSubmit() == false) {
              for (var i in Page_Validators) {
              try {
                  if (!Page_Validators[i].isvalid) {
                            message.style.display = "block";
                         }
                      } catch (e) {
                   }
               } return false;
          } return true;
       }
</script>
<div id="message" class="backS2fT1D">
      please fill required field
</div>

here in page I define some textbox  that users should fill them I use validation for all textbox like:

<asp:RequiredFieldValidator Display="Dynamic" ID="RequiredFieldValidator2" runat="server" ControlToValidate="TxtMName"></asp:RequiredFieldValidator>
<asp:RequiredFieldValidator Display="Dynamic" ID="RequiredFieldValidator4" runat="server" ControlToValidate="TxtMobile"></asp:RequiredFieldValidator>
<asp:RequiredFieldValidator Display="Dynamic" ID="RequiredFieldValidator5" runat="server" ControlToValidate="TxtaddC"></asp:RequiredFieldValidator>

so if users doesn't fill one of them below div will display for them:

<div id="message" class="backS2fT1D">
     please fill required field
</div>

now I want define checkbox in this page and if users doesn't select one of checkboxs or doen't fill textboxs it will display above div

how I can do it?

best regards

neda

Hi nedash,

I have created sample code which full-fill your requirement.

HTML

<form id="form1" runat="server">
<div>
    <div id="AMOL11">
        <div id="chadM">
            <label id="Label1" runat="server" class="chadML">
                <input type="checkbox" id="ChAllTra" class="ValidateCheck" runat="server" /></label></div>
        <div id="chadM1">
            <label id="Label2" runat="server" class="chadM1L">
                <input type="checkbox" id="ChRE" class="ValidateCheck" runat="server" /></label></div>
        <div id="chadM2">
            <label id="Label3" runat="server" class="chadM2L">
                <input type="checkbox" id="ChR" class="ValidateCheck" runat="server" /></label></div>
        <div id="chadM3">
            <label id="Label4" runat="server" class="chadM3L">
                <input type="checkbox" id="ChF" class="ValidateCheck" runat="server" /></label></div>
        <div id="chadM4">
            <label id="Label5" runat="server" class="chadM3L">
                <input type="checkbox" id="ChPF" class="ValidateCheck" runat="server" /></label></div>
        <div id="chadM5">
            <label id="Label6" runat="server" class="chadM3L">
                <input type="checkbox" id="ChMo" class="ValidateCheck" runat="server" /></label></div>
    </div>
    <asp:CustomValidator ID="CustomValidator1" runat="server" ForeColor="Red" ErrorMessage="Please select one check box"
        ClientValidationFunction="ValidateCheckBox"></asp:CustomValidator><br />
    <asp:Button ID="Button1" runat="server" Text="Submit" />
</div>
<br />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
    function ValidateCheckBox(sender, args) {
        if ($(".ValidateCheck:checked").length < 1) {
            args.IsValid = false;
            return false;
        }

        return false;
    }

</script>
</form>

Screenshot

hi Indresh

I worte your code problem is that except these checkbox I define other checkbox in page now here if users checked other checkboxs it doesn't show error...

I want wrote this code for some checkbox not all checkbox...

best regards

neda

Hi nedash,

I have modified code. So please refer the below link and modify as per your requirement.

http://www.aspforums.net/Threads/707318/how-to-use-validation-for-checkbox/Replies/3#Replies