Dropdownlist population error from dataset asp .net

[elektronik]

I am having trouble in populating dataset in Dropdownlist. I want to show username column from my database table in dropdownlist, but only the last row value is shown. I am stuck, after searching for hours I couldn't find any solution, Every code almost gives me same problem.Here is what i am trying to do:\[code\]Dataset ds = new Dataset();ds = db.search(); if(ds.Tables[0].Rows.Count>0){ DropDownList1.DataSource=ds; DropDownList1.DataBind();}\[/code\]In ASP Markup:\[code\]<aspropDownList ID="DropDownList1" runat="server"></aspropDownList>\[/code\]