Work around I am going to do: Programmatically fill in datasource's parameters and promatically invoke datasource's updating event. But I am so reluctant because with so many aspx I have written, I know ASP.
NET is smart enough to do it for me automatically !! Supplement information: Upon clicking Edit Item Template's update link button: Item Command event is triggered, then return and goes no further. This is my foresaid work around solution: programmatically fill in datasource's parameters, when apparently ASP. However, I am still appreciate if anyone can explain this problem.
Why isn't Form View's Item Updating event fired, when obviously link button's command name = "Update"? protected void Form View1_Item Command(object sender, Form View Command Event Args e) protected void Object Data Source1_Updating(object sender, Object Data Source Method Event Args e) protected void Object Data Source1_Inserting(object sender, Object Data Source Method Event Args e) private void set ODSParameter(Object Data Source Method Event Args e) Thanks for your suggestion, but I don't think it is a common practice to invoke ODS' update event manually.
there any tools to tell me what events has been fired upon clicking a Form View's linkbutton? I have debugged that ODS's On Updating event is not invoked when I press the link button whose command name = "Update". NET's official class library between clicking the button and ODS's On Updating event, an exception must have been thrown, but it simply does not throw to the surface (believe me, I am already working under debug mode, every uncaptureded error must throw to surface).
Such exception is probably aroused when ODS's do not match ODS Update Method's parameter.
When I finally resort to set the Update Method's parameter manually, everything works!
It is not entirely clear whether the emergence of these antigenic variants is related solely to use of vaccines.
All avian influenza vaccination programs should have an epidemiologically relevant surveillance program to check for emerging variants and representative isolates of AI viruses obtained should be assessed for genetic and antigenic variation.
(3b) Then I copy and paste the exact coding from the problem aspx to ....this modified works, to my amazement !!! This aspx works......until not knowing when.....update command problem happen again.From our supervisory perspective, we welcome, first, the timely proposal to implement a series of international supervisory standards, which will increase the resilience of EU institutions.These standards include the net stable funding ratio, the Fundamental review of the trading book and the leverage ratio.Within a few years, multiple lineages of antigenically variant H5N2 LPAI field viruses emerged that escaped from immunity induced by the original 1994 vaccine seed strain used in the conventional inactivated vaccine (3).Similarly, emergent H5N1 HPAI field viruses have arisen in China, Indonesia and Egypt since 2005 that escaped from immunity induced by classical H5 inactivated vaccine seed strains used in commercial vaccines (1,7).