First Item on Dropdownlist in blank
21,429
Solution 1
After your DataBind call, add this code.
DropDownList1.Items.Insert(0, new ListItem(string.Empty, string.Empty));
Solution 2
You can define the empty item in aspx file if you set AppendDataBoundItems
property to true.
<asp:DropDownList ID="ddlPersons" runat="server" AppendDataBoundItems="true" DataValueField="ID" DataTextField="Name">
<asp:ListItem> -- please select person -- </asp:ListItem>
</asp:DropDownList>
Then you can databind items from the database in the codebehind:
ddlPersons.DataSource = personsList;
ddlPersons.DataBind();
I regard this "empty item" as presentation / UI, so I like to put it in the aspx. It also keeps the codebehind simpler.
Solution 3
Do something like this: Here is a simple example
<asp:DropDownList ID="ddlFruits" runat="server">
<asp:ListItem Value="1" Text="Oranges"></asp:ListItem>
<asp:ListItem Value="2" Text="Apples"></asp:ListItem>
<asp:ListItem Value="3" Text="Grapes"></asp:ListItem>
<asp:ListItem Value="4" Text="Mangoes"></asp:ListItem>
</asp:DropDownList>
And in the code behind
ddlFruits.Items.Insert(0, new ListItem(string.Empty, "0"));
Solution 4
You can do it with this way:
dropdownlist1.Items.Insert(0, new ListItem("Select here...", string.Empty));
Author by
Daniel
Updated on June 21, 2020Comments
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Daniel almost 4 years
How to put the first item on the DropDownList in blank ? In VB is something like, DropDownList.index[0] = ""; I did this:
string StrConn = ConfigurationManager.ConnectionStrings["connSql"].ConnectionString; SqlConnection conn = new SqlConnection(StrConn); conn.Open(); SqlDataReader dr; string sql; sql = @"Select Nome From DanielPessoas"; SqlCommand cmd = new SqlCommand(sql, conn); dr = cmd.ExecuteReader(); DropDownList1.DataSource = dr; DropDownList1.DataTextField = "Nome"; DropDownList1.DataValueField = "Nome"; DropDownList1.DataBind();