How to make Dropdownlist readonly in C#

Question

I am using

TextBox.ReadOnly = false;

for readonly.

How can i fix it on DropDownList?

I use Enabled = false properties like...

TextBox.Enabled = false;
DropDownList.Enabled = false;

but, after that css class not call in this both control at run-time.

Please give me any properties like "ReadOnly".

Answer 1

There is no readonly property for DropDownList in asp.net

Try using:

  <asp:DropDownList ID="DropDownList1" runat="server" Enabled="False">
    </asp:DropDownList>

Or change it at runtime:

DropDownList1.Enabled=false;

and change it's css class as well.

DropDownList1.CssClass = "class";

Answer 2

Another way:

Code Behind: Just add attribute disabled

 DropDownList1.Attributes.Add("disabled", "disabled");

Client Side:

 $("#DropDownList1").attr("disabled","disabled");

JS FIDDLE

Answer 3

Use a panel as with Enabled="false" and put your control inside:

<asp:Panel ID="pnlname" runat="server" Enabled="false">
    <asp:DropDownList ID="DropDownList1" runat="server">
    </asp:DropDownList>
</asp:Panel>

Answer 4

As disabled dropdownlist data cannot be read in postback. So as a workaround do not disable it, but first clear dropdownlist and then bind only already selected item.

ListItem item = DropDownList.SelectedItem;
DropDownList.Items.Clear();
DropDownList.Items.Add(item);