aspx:
<html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script type="text/javascript"> function PopulateTextBox() { var inner = document.getElementById("dropdownlist").value; document.getElementById("hidden").value = inner; } </script> </head> <body> <form id="form1" runat="server"> <div> <select id="dropdownlist” name="cars" onchange="PopulateTextBox();"> <option value="volvo">Volvo</option> <option value="saab">Saab</option> <option value="fiat">Fiat</option> <option value="audi">Audi</option> </select> </div> <input id="hidden" runat="server" type="hidden" /> <asp:Button ID="Button1" runat="server" Text="Save" onclick="Button1_Click" /> </form> </body> </html>aspx.cs:
protected void Button1_Click(object sender, EventArgs e) { string car = hidden.Value; //store the car into database }
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