Question

I have a model which I have binded with a view having text boxes. Now their are certain text boxes which i want to make read only and that to from the model class.
So any suggestions how can i make them read only from the model class.

Answer 1

Here is the answer:
the View is something like

<div>
    <table>
        <tr>
            <td>@Html.LabelFor(x => x.Name)</td>
            <td>@Html.EditorFor(x => x.Name)</td>
        </tr>
        <tr>
            <td>@Html.LabelFor(x => x.DOB)</td>
            <td>@Html.EditorFor(x => x.DOB)</td>
        </tr>
        <tr>
            <td>@Html.LabelFor(x => x.Address)</td>
            <td>@Html.EditorFor(x => x.Address)</td>
        </tr>
    </table>
</div>

My ViewModel is:

public class SampleModel
    {
        [EnableForRole]
        public String Name { get; set; }

        [EnableForRole]
        public DateTime DOB { get; set; }

        [EnableForRole]
        public String Address { get; set; }
    }

And the custom Metadata property is like:

public class EnableForRoleAttribute : Attribute, IMetadataAware
    {

        public void OnMetadataCreated(ModelMetadata metadata)
        {
            var toEnable = IsAccessible(metadata.PropertyName);
            metadata.IsReadOnly = !toEnable;
        }
        private bool IsAccessible(String actionName)
        {            
            return HttpContext.Current != null && HttpContext.Current.User != null && HttpContext.Current.User.IsInRole(roleName); //if you use MembershipProvider
        }
    }

And now finally you should add the partial view (String.cshtml) in EditorTemplate folder like:

@if (ViewData.ModelMetadata.IsReadOnly)
{
    @Html.TextBox("", ViewData.TemplateInfo.FormattedModelValue,
        new {  @readonly = "readonly" })                                     
}
else
{
    @Html.TextBox("", ViewData.TemplateInfo.FormattedModelValue) 
}

Thats all.

Enjoy.