CODEWITHSUNDEEP
c#asp.net-mvcrazorselectlistitem
Andy Donegan
Andy Donegan

Reputation: 915

MVC 5 Select List Item with current selection showing

My apologies I will not try technical terms to explain my problem, I will try basic English - I want to have my select list to appear in my view with he current selected dealer chosen already (more details below). Thank you in Advance.

I have a product which is stored in its own data table, which is sold by dealers and against the product I store the dealer number who sold it.

I get the dealer number from the dealer data table.

On the web page I create a drop down list when the product is sold which the user selects the dealer name who sold it. I have managed to create the list which shows the names but when selected stores the ID in the product table of the dealer this is working fine.

I am just struggling when I come to edit the product have the select list appear and show the current selected dealer, it always appears with first dealer in the list. I have searched but due to my getting this code fudged together from other SO posts, I can not find a post which works with my code example.

Any feedback/help/suggestions would be greatly appreciated.

Controller

            // Create drop down list of dealer names to allow users to select from easily identifiable list rather than find number first before coming to the page.
        var list = db.Dealers.OrderBy(r => r.Name).ToList().Select(rr =>
        new SelectListItem { Value = rr.Name.ToString(), Text = rr.Name }).ToList(); // Require to code and set value based on current selected name.

        ViewBag.DealerName = list;

Razor view Code:

            <div class="form-group">
            @Html.LabelFor(model => model.Dealer_ID, htmlAttributes: new { @class = "control-label col-md-4" })
            <div class="col-md-8">
                @*
                @* Custom display for drop down list which shows Dealer Name instead of numeric ID Value *@
                @Html.DropDownListFor(m => m.Dealer_ID, (IEnumerable<SelectListItem>)ViewBag.DealerName, new { htmlAttributes = new { @class = "form-control" } })
            </div>
        </div>

Upvotes: 1

Views: 3405

Answers (1)

Gene R
Gene R

Reputation: 3744

You store model.Name to the Value of SelectListItem, but it should be property that correspond to the value of model.Dealer_ID

rr.ID or rr.Dealer_ID:

var list = db.Dealers.OrderBy(r => r.Name).ToList().Select(rr =>
        new SelectListItem { Value = rr.Dealer_ID.ToString(), Text = rr.Name }).ToList();

Upvotes: 3

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