html.validation asp.net razor

Question

How can I add a simple validation in my code? If value = 0 I don't want the controller to process the form. If anything else is selected except 0, I want the controller to process the form.

@using (Html.BeginForm("GenerateReport", "Admin", FormMethod.Get))
{
    <select id="reportId" name="reportId" class="form-control">
        <option value="0">Select</option>
        <option value="1">Religion</option>
        <option value="2">Address</option>
        <option value="3">Job</option>
        <option value="4">Degree</option>
        <option value="7">Age</option>
    </select>

    <input type="submit" value="Print" id="rlist_type" />
}

Nathan Smith · Accepted Answer · 2015-02-19 05:59:09Z

1

This article provides basic information on ASP.NET MVC 5 validation http://www.asp.net/mvc/overview/getting-started/introduction/adding-validation

I would leave the value for the first option empty then add a [Required] attribute on the object that I was using to capture the form post.

public class AdminScreenFormPost
{
    [Required]
    public int reportId { get; set; }
}

Inside the controller add

if (!ModelState.IsValid)
{
    return View();
}

In the razor view add this so it will displays the validation results

@Html.ValidationSummary(true)

I would also look into ModelState.AddModelError

ModelState.AddModelError("MyDropDownListKey", "Please Select");

answered Feb 19, 2015 at 5:59

Nathan Smith

1,86116 silver badges18 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

radixx Over a year ago

Wow! super thanks @Nathan Smith. Now it's working :D

Collectives™ on Stack Overflow

html.validation asp.net razor

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related