Here is the code of dropdown in actually from dropdown only item selected by default when we click on droppdown but I want 2 items to be selected from the dropdown.
<asp:DropDownList runat="server" ID="dd1" >
<asp:ListItem Text="Male"></asp:ListItem>
<asp:ListItem Text="Female" Value="2"></asp:ListItem>
<asp:ListItem Text="yes" Value="3"></asp:ListItem>
<asp:ListItem Text="no" Value="4"></asp:ListItem>
<asp:ListItem Text="hello" Value="5"></asp:ListItem>
</asp:DropDownList>