MVC DropDownList setting default value

Question

var userColor = db.userColor;
foreach(var x in userColor){
    var correspondingDropDownValue = from m in db.user
                                     where m.UserID == x.UserID
                                     select m;

 ViewData["dropDown_Color"] = correspondingDropDownValue.Select(j => new SelectListItem { Text = j.ListOfValue, Value = j.ListOfValue }).ToList();
}

In this db.userColor table has another column known as db.userColor.default which carry a value that to be used as the default value. How can I modify the code above to set the selected value?

CodingIntrigue · Accepted Answer · 2013-08-27 11:27:19Z

1

Use the Selected property of SelectListItem to determine which should be selected by default:

ViewData["dropDown_Color"] = correspondingDropDownValue.Select(j => new SelectListItem { Text = j.ListOfValue, Value = j.ListOfValue, Selected = j.ListOfValue == j.userColor.default }).ToList();

Not being able to see your schema, I'm guessing where userColor.default is, but you can update the logic as necessary.

answered Aug 27, 2013 at 11:27

CodingIntrigue

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Comments

Amul Harad · Accepted Answer · 2014-08-27 06:45:00Z

Use the below code to set property 

 List<LimitType> objLimitTypeList = new List<LimitType>();

        LimitType objLimitType = new LimitType();
        objLimitType.WithinLimitCode = 0;
        objLimitType.WithinLimitName = "Within Limit";
        objLimitTypeList.Add(objLimitType);

        LimitType objLimitTypeN = new LimitType();
        objLimitTypeN.WithinLimitCode = 1;
        objLimitTypeN.WithinLimitName = "Over Limit";
        objLimitTypeList.Add(objLimitTypeN);

        if (BtnAct.ToLower() == "add")
        {
            ViewBag.WithinLimit = new SelectList(objLimitTypeList, "WithinLimitCode", "WithinLimitName");
        }
        else
        {
            if (IsWithinLimit.ToLower() == "y")
                ViewBag.WithinLimit = new SelectList(objLimitTypeList, "WithinLimitCode", "WithinLimitName", 0);
            else
                ViewBag.WithinLimit = new SelectList(objLimitTypeList, "WithinLimitCode", "WithinLimitName", 1);

        }

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