listboxfor in mvc

Indu Yadav

8y1.4k.NET

i am using listboxfor in mvc.........at the edit time i display selected values in label

i need to display remaining values(not selected values) in a listboxfor but this time listbox showing all value..........how to do it in mvc

3 Replies

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Laxmidhar Sahoo8y ago
var x = (from c in db.addcatalouge where c.id == id select c).FirstOrDefault();

The above code return a single row

so

string strdealer = x.delid;

the above code will hohd a single value

the below code for multiple

string[] strvalues = strdealer.Split(new[] { ',' }); //here no , will be foun di think
foreach (var item in strvalues)
{

so that should be

if (strdealer != null)
{
var item = strdealer;
int idvalue = Convert.ToInt32(item);
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Indu Yadav8y ago
else if (cmd == "ed")
{
MyDbcontext db = new MyDbcontext();
var x = (from c in db.addcatalouge where c.id == id select c).FirstOrDefault();
nameobj.id = x.id;
nameobj.catid = x.catid;
string strdealer = x.delid;
StringBuilder strobj = new StringBuilder();
if (strdealer != null)
{
string[] strvalues = strdealer.Split(new[] { ',' });
foreach (var item in strvalues)
{
if (item != "" && item != null)
{
int idvalue = Convert.ToInt32(item);
var dealerobj = (from c in objDbContext.dealer where c.id ==idvalue select c.name).FirstOrDefault();
var newobj = dealerobj;
strobj.Append("").Append(dealerobj).Append("");

}
}
}
ViewBag.selectedvalues = strobj;

view code:::
@Html.ListBoxFor(model => model.dealernamelist, new SelectList(Model.dealerlist, "id", "name"), new {value=Model.delid,@class = "eligibleCategoryListBox", name = "dealerlist", id = "id", @multiple = "multiple" })

@Html.Raw(ViewBag.selectedvalues)

0
Laxmidhar Sahoo8y ago
sir
Listbox items display according to your query .so please display query.
so that can better visualised
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