Hide Div by checking Eval with OR condition in ASP.Net

hi

see below code:

<div id="Dmet31T" runat="server" Visible='<%#Eval("transfer").ToString() != "Sell" ?true : false %>' class="Dmet31T">

here if  in transfer's column be "Sell" it will visibility=true

now I want define if transfer's column be sell Or Rent in make visibility=true

so I change code like:

<div id="Dmet31T" runat="server" Visible='<%#Eval("transfer").ToString() != "Sell ||Rent" ?true : false %>' class="Dmet31T">

but it doesn't work

is my code correct?

Best regards

neda