Hi,

I have added a Webcombo and binded the values to it. And I have added a SelectedRowChanged event for webcombo. All are working fine. But I want to cancel the postback of the webcombo if it fails in certain condtion. I dont know how to use this...

here is my combo control

<igcmbo:WebCombo ID="wbcFacilityReq" runat="server" BackColor="White" BorderColor="#7F9DB9"

BorderStyle="Solid" BorderWidth="1px" ForeColor="Black" SelBackColor="Transparent"

SelForeColor="Black" Version="4.00" DisplayValue="" Editable="True" Width="220px" OnSelectedRowChanged="wbcFacilityReq_SelectedRowChanged">

<ExpandEffects ShadowColor="LightGray" />

<DropDownLayout BorderCollapse="Separate" ColHeadersVisible="No" ColWidthDefault="205px"

DropdownWidth="210px" RowHeightDefault="20px" RowSelectors="No" Version="4.00"

XmlLoadOnDemandType="Synchronous">

<HeaderStyle BackColor="LightGray" BorderStyle="Solid">

<BorderDetails ColorLeft="White" ColorTop="White" WidthLeft="1px" WidthTop="1px" />

</HeaderStyle>

<FrameStyle BackColor="LightGray" BorderStyle="Ridge" BorderWidth="2px" Cursor="Default"

Font-Names="Verdana" Font-Size="10pt" Height="130px" Width="210px">

</FrameStyle>

<RowStyle BackColor="White" BorderColor="Gray" BorderStyle="Solid" BorderWidth="1px">

<BorderDetails WidthLeft="0px" WidthTop="0px" />

</RowStyle>

<SelectedRowStyle BackColor="DarkBlue" ForeColor="White" />

</DropDownLayout>

<Columns>

<igtbl:UltraGridColumn>

<header caption="Column0"></header>

</igtbl:UltraGridColumn>

</Columns>

<ClientSideEvents AfterSelectChange="wbcFacilityReq_AfterSelectChange" />

and wbcFacilityReq_AfterSelectChange fucntion ...

//Add code to handle your event here.

         if(some_condition == false)

          {

                 Here I need to block the postback.... How can I do this?....