How to add empty list in dropdownlist in C#.NET

Question

Hi friends, Please update me that, How to add empty list in dropdownlist in C#.NET, when I fill that combo from data reader. Thanks,

MuthuMari M · Answer

Hi, asp : DropDownList ID = "Whatever" runat = "server" AppendDataBoundItems = "True" > asp : ListItem Value = "" Text = "Select one..." /> asp : DropDownList > the use of AppendDataBoundItems="True" And then when you bind, the bound items are put after the empty item rather than replacing it. Pls refer this url http://stackoverflow.com/questions/679128/add-empty-item-to-dropdownlist-of-custom-objects-in-c-sharp Thanks!

Manikandan Chandran · Answer

Thank you both of you.

Senthilkumar · Answer

Hi, Place the drop down control in your design page. You no need to add any thing. But if you want to add the default text then ListItem lstitem = new ListItem(); lstitem.Text = "Select a Item"; lstitem.Value = "0"; ddlCity.Items.Insert(0, lstitem); When click on some thing or based on the other event, if you want to load the data into the drop down list then SqlCommand sqlCommand = new SqlCommand(); sqlCommand.CommandType = CommandType.StoredProcedure; sqlCommand.CommandText = "proc_Retrievecities"; SqlDataReader sreader = sqlCommand.ExecuteReader(); ListItem listItem = null; if (sreader != null) { while (sreader.Read()) { string city = sreader["Name"].ToString(); int id = Convert.ToInt32(sreader["ID"].ToString()); listItem = new ListItem(); listItem.Text = city; listItem.Value = id; ddlCity.Items.Add(listItem); } } Hope this help you.

How to add empty list in dropdownlist in C#.NET

Answers (3)