asp.net mvc how to pass full model from view to controller

Question

I have such table in a view

<table class='sendemailtable'>                
@if (!string.IsNullOrEmpty(Model.CustomerName))
{
<tr>
   <td style="font-size: 26px;">
   @Html.Label(string.Empty, Model.CustomerName)
   </td>
</tr>
}                   

<tr><td style="padding-top: 15px;">To:</td></tr>
<tr>
   <td>
   @Html.TextBoxFor(m => m.EmailTo)
   @Html.ValidationMessageFor(m => m.EmailTo);
   </td>
</tr>

<tr><td style="padding-top: 15px;">Subject:</td></tr>
<tr>
<td style="font-size: 22px;">
@Html.TextBoxFor(m => m.EmailBody)
</td>
</tr>

few more

<button style="..." type="submit">SEND</button>

</table>

These are not all items from model, it has some more ids which are not present in ui, have some property with only getter

    public int OfferID;
    public int SomeOfferID;
    public int CustomerID;

    #region Email

    [Required]
    [DataType(DataType.EmailAddress)]
    [RegularExpression(@"[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,4}", ErrorMessage = "Incorrect email")]
    public string EmailTo;

    private string emailBodyDefault;
    public string EmailBody
    {
        get
        {
            if (string.IsNullOrEmpty(emailBodyDefault))
                emailBodyDefault = string.Format("Hi,{1}please take a look. Offer ID: {0}{1}{1}Thanks", SomeOfferID, Environment.NewLine);

            return emailBodyDefault;
        }

        set { emailBodyDefault = value; }
    }

    private string emailSubject;
    [Required]
    public string EmailSubject
    {
        get
        {
            if (string.IsNullOrEmpty(emailSubject))
                emailSubject = string.Format("Offer ID: {0}", SomeOfferID);

            return emailSubject;
        }

        set { emailSubject = value; }
    }

    #endregion

I want to pass full my model to controller, to be able to send email from controller's action. Also need to validate user's email, and non-empty subject when user clicks send. How can i do this ?

Answer 1

If you want the complete model to be submitted, then you need to include all the model properties in your form. You can do this using @Html.HiddenFor(m => m.YourPropertyName) if you don't want them to be displayed. I don't see any form tags in your code, but I assume there are some?

You already have validation on your model properties as you've used the [Required] DataAnnotations, so to check this on the server side, you need to check ModelState.Valid when you post the data to your controller.

public ActionResult SubmitMyForm(MyModel model)
        {
            if (ModelState.IsValid)
            {
...

Response to comment:

the form would look something like this:

@using (Html.BeginForm())
{
    <table>
    ...
    </table>
}

The error is occurring because inside the using block, you don't need to prefix C# code with @. See this answer for an explanation.