MVC DataAnnotations validation For group of checkboxes

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I have tree check boxes like below names

First Counter
Second Counter
Third Counter

so that i can choose more than one check box ,but i need to validate user should select atleast one checkbox

This is My Model

C#

class AddDetails
{
 public Boolean FirstCounter{ get; set; }
 public Boolean SecondCounter{ get; set; }
 public Boolean ThirdCounter{ get; set; }
  
}

This is my view

VB

@Html.CheckBoxFor(mmm => mmm.FirstCounter) <label>First</label>
@Html.CheckBoxFor(mmm => mmm.SecondCounter) <label>Second</label>
@Html.CheckBoxFor(mmm => mmm.ThirdCounter) <label>Third</label>

am using @Html.validatemessagefor() for error message purpose

so if the user not selected any one of the above check boxes, alert message should shown to user using validation message

Posted 7-Jul-14 1:11am

Arun Raju

Updated 7-Jul-14 1:13am

v2

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Comments

jo.him1988 8-Jul-14 9:46am

hi why did you not use javascript for this
try this simple script

1 solution

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jo.him1988 · Answer 1 · 2014-07-08T03:47:00

XML

<script type="text/javascript" src="../../Scripts/jquery-1.7.1.min.js">

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

        if ($("#chk1").get(0).checked || $("#chk2").get(0).checked || $("#chk3").get(0).checked)
            return true;
        else {
            alert("check atleast one checkbox");
            return false;
        }
    }
</script>

@Html.CheckBox("firstChkBox",new {id="chk1"})<label>First</label>

@Html.CheckBox("secondChkBox", new { id = "chk2" })<label>Second</label>
@Html.CheckBox("thirdChkBox",new {id="chk3"}) <label>Third</label>
<input type="button" value="checkBox" id="btnChk" onclick="return CheckBox();"/>