how do I set disabled attribute on html textbox in asp.net-mvc?

Question

I am trying to dynamically set the disabled attribute on the html textbox and having issues

I tried this in my view:

 string disabledString = \"\";
          


        

Answer 1

Actually it is possible to write an Extension class to the HtmlHelper to do this but you have to implement many overrides so the quickest solution I found was to write a dictionary extension.

You can use below class for this:

public static class DictionaryExtensions
{
    public static Dictionary WithAttrIf(this Dictionary dictionary,bool condition, string attrname, object value)
    {
        if (condition)
            dictionary[attrname] = value;

        return dictionary;
    }

    public static Dictionary WithAttr(this Dictionary dictionary, string attrname, object value)
    {

        dictionary[attrname] = value;

        return dictionary;
    }
}

To use it, import the class in your view and your view code looks like this:

@Html.TextBoxFor(m => m.FirstName,  new Dictionary().WithAttr("class","input-large").WithAttrIf(!string.IsNullOrWhiteSpace(Model.FirstName),"readonly","yes"))

You can add as many attributes as you wish since the extension method adds the value to the dictionary and returns the dictionary itself