Hi ,
In dropdownlist ihave different options if selected traveltime option i need enter stattime and endtime it calcluate total i want show this hours into another webform textbox

dropdown1(travel time) startimtxtbox endtimetextbox total
dropdown2(installation)
dropdown3(other)

webform2

services starttime endtmie bf luch dinner total
txtbox txtbox ....

total txtbox
onsite hours txtbox
travehours txtbox

Is there a question in this somewhere

please use this method

<asp:DropDownList ID="DropDownListSubContractors" runat="server" AppendDataBoundItems="true" DataTextField="Company_Name" DataValueField="id">
<asp:ListItem Text="---Select---" Value="0" />
</asp:DropDownList>

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