how to write the validation for the checkboxlistfor in MVC

Harikanth Kompally

tr>

Course

@Html.HiddenFor(m => m.Id)

@{var test = Model;

}

@Html.CheckBoxListFor(m => m.courseMappingList.CourseIds,

m => m.CourseList,

m => m.CourseId,

m => m.CourseName,

m => m.selectCheckCourseList)

@Html.ValidationMessageFor(m => m.courseMappingList)

4 Replies

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Manas Mohapatra10y ago
Accepted answer
Press F12 in browser after rendering the page.. Then you will get HTML code and point your cusorto checkbox, you will get name attribute. Then collect it..
Try like in jQuery:
if ($('[name='nameofobject'] input[type="checkbox"]:checked').length == 0){
//fail validation so alert to user
}
Harikanth Kompally10y ago
Sir not help above the code
i have the validation for checkListboxFor and the list is getting from the data base, i have the models in this task,I dn't have the ID for checkListboxFor how to write the ID tocheckListboxFor, i tried like thisnew { @Id="check"} but getting a error.
pls slove this problem
thank u sir

@Html.HiddenFor(m => m.Id)
@{var test = Model;
}
@Html.CheckBoxListFor(m => m.courseMappingList.CourseIds,
m => m.CourseList,
m => m.CourseId,
m => m.CourseName,
m => m.selectCheckCourseList)
Manas Mohapatra10y ago
If you want to do through jQuery:
if ($('#divChkGroup input[type="checkbox"]:checked').length == 0){
    //fail validation so alert to user
}
else
{
// Process your logic
}
Follow below links:

http://www.nwa4.com/blog/asp.net-mvc-multiple-checkboxes-validation-and-handling-using-c-sharp

http://www.dotnet-tricks.com/Tutorial/mvc/8UFa191212-Custom-Validation-for-Checkbox-in-MVC-Razor.html

http://blog.degree.no/2012/03/validation-of-required-checkbox-in-asp-net-mvc/
Ahmed Abdi10y ago
Hi there!
You can use the built in Range data anotation attribute.