asp.net mvc - assign a dropdownListfor to an "All" option with value=0 -

i have dropdownlist in view want assign option value 0 suppose

<option value="0">all</option> <option value="1">account a</option> <option value="2">account b</option> 

and on , if user dont select 1 option default selected value should 0 all.. have tried not working.

here code appreciated.

public class reportviewmodel     {         public selectlist account { get; set; }         public string selectedaccount { get; set; }          public selectlist user { get; set; }         public string selecteduser { get; set; } public selectlist team { get; set; }         public string selectedteam { get; set; } } 

view

@html.dropdownlistfor(m => m.selectedaccount, (ienumerable<selectlistitem>)model.account, " ", new { @class = "form-control" })   @html.dropdownlistfor(m => m.selectedteam, (ienumerable<selectlistitem>)model.team, " ", new { @class = "form-control" }) 

controller

reportviewmodel.account = new selectlist(preflightdbcontext.accounts.where(o => o.accountid != 0 && o.deleted == false), "accountid", "accountname"); reportviewmodel.team = new selectlist(preflightdbcontext.teams.where(o => o.teamid != 0 && o.deleted == false), "teamid", "teamname"); 

you need construct list<selectlistitem> in controller , add selectlistitem text , value want. change property to

public ienumerable<selectlistitem> account { get; set; } 

and in controller

list<selectlistitem> accounts = preflightdbcontext.accounts     .where(o => o.accountid != 0 && o.deleted == false)     .select(o => new selectlistitem()     {       value = accountid.tostring(), // assumes accountid not string       text = accountname     }).tolist(); accounts.insert(0, new selectlistitem() { value = "0", text = "all" }); reportviewmodel.account = accounts; 

then in view

@html.dropdownlistfor(m => m.selectedaccount, model.account, new { @class = "form-control" }) 

(ditto team)