I Have a requirement in which i need to display some values in a dropdown list so that the user can select a value from it and also the dropdown list must allow the user to type a new value inside the dropdown list,
Right now i am binding this dropdown list to a SQL Table column and able to display the values and the user is able to select a value from the list but i am not able edit the dropdown list , I tried using custom controls but it didnt work, can anyone help me out with this ? Thanks in advance

You will have to use a combo-box style ASP.NET custom control, or build your own equivalent. An example is at http://www.daveandal.net/books/6744/combobox/combo.aspx and http://www.daveandal.net/books/6744/...opulating.aspx, but there are plenty you can get from places such as http://www.asp.net.

u can use textbox and dropdown list to make editable dropdown list

<asp:DropDownList ID="dropdown" runat="server" Font-Bold="True" Style="z-index: 100;

left: 222px; position: absolute; top: 341px" Width="239px" Height="23px" Enabled="False" AutoPostBack="True" OnSelectedIndexChanged="ddlHandlerRouteName_Select edIndexChanged">
<asp:ListItem>----New Item?----</asp:ListItem>

<asp:ListItem>Hello</asp:ListItem>

<asp:ListItem>World</asp:ListItem>

</asp:DropDownList>

----------------------------------------------------------->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>

whn user click on new item show textbox and hide drop down and when he write new item in textbox then add tht item in drop down and make it visible

protected void dropdown_SelectedIndexChanged(object sender, EventArgs e)
{

if (this.dropdownSelectedIndex == 0)
{

this.textbox.Text = "";
this.dropdown.Visible = false;

this.textbox.Visible = true;
}

}

protected voidtextbox_TextChanged(object sender, EventArgs e)
{

int index = 0;if(!this.dropdown.Items.Contains(new ListItem(this.textbox.Text.Trim())))
{

this.dropdown.Items.Add(this.textbox.Text.Trim());
}

for (int i = 0; i < this.dropdown.Items.Count; i++)
{

if (dropdown.Items.Text == this.textbox.Text)
{

index = i;

}

}

this.dropdown.SelectedIndex = index;
this.dropdown.Visible = true;

this.textbox.Visible = false;
}

Maybe you can try the code for COMBOBOX in HTML. It is an Editable DropDown Listbox with any one select option as Editable (like a textbox ) and the rest as readonly. You can find it here:

http://chakrabarty.com/pp_editable_dropdown.html

http://chakrabarty.com/combobox.html

LINKS DEAD AS OF 2-17-11

Dave and Al's site has moved, and no longer supports runnable samples. However, all of the book resources (code, errata, etc.) are still available to download.

The page containing links to all of them is http://www.daveandal.net/books/misc/default.htm.

__________________
Jim Minatel
Associate Publisher, WROX - A Wiley Brand
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