ASP.NET :Working with dropdownlist, In drop down list not getting data selected.. only getting index number.why?

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ASP.NET

Sir, I am working with asp.net(Without database).Here I just include some fields and show the data in a grid view (without database).Here I add 2 drop down list and it shows all countries and state using this,

<script src="List_Country_State-master/countries.js" type="text/javascript"></script>

<asp:DropDownList ID="ddl_country" runat="server" >
<asp:ListItem Enabled="false" Text="Select Country" Value="-1">


<script language="javascript" type="text/javascript">
populateCountries("ddl_country", "ddl_state");</script>

Then,
I want to display the country,state selected into a grid view. this is done by this code,
drCurrentRow["Country"] = ddl_country.Text;
Bt it gives the index number, not the text of what country selected and also same for state.

How can I Solve it. please help me