How to capitalize first letter razor

easy solution could be

Html.EditorFor(model => model.FirstName, new { htmlAttributes = new { class = "form-control" } })

then use below css to capitalize your first letter then you done.

.form-control {
text-transform:capitalize;
}

You could add a partial class for Client with a property that returns Address1 in title case:

public partial class Client
{
    public string TitleCaseAddress1
    {
        get
        {
            return System.Globalization.CultureInfo.CurrentCulture.TextInfo.ToTitleCase(this.Address1);
        }
    }
}

You would then use TitleCaseAddress1 in your Razor:

@Html.DisplayFor(model => model.TitleCaseAddress1) <br />

Reference: http://msdn.microsoft.com/en-us/library/system.globalization.textinfo.totitlecase(v=vs.100).aspx

It's best to keep the presentation layer and the data access layer separate. Create a view model that wraps or translates the ORM / entity framework objects.

public class ClientViewModel
{
    private Client _dao;

    public ClientViewModel(Client dao)
    {
        _dao = dao;
    }

    public string Address 
    { 
        get
        {
            // modify the address as needed here
            return _dao.Address;
        }
    }
}