How to trigger server-side event from javascript?

Question

如何从客户端JavaScript触发服务器控制事件？

Answer 1

To call a server side method on a client side event you need to do the following:

1- Create the server side method:

void DoSomething(...) { ... }

2- Implement the System.Web.UI.IPostBackEventHandler.RaisePostBackEvent which take one string argument (You can assign the name to the value of this argument).:

public void RaisePostBackEvent(string eventArgument) 
{
        DoSomething(...);
}

3- Write a script to trigger post back:

function TriggerPostBack(control, arg){
    __doPostBack(control, arg);
}

4- Call the PostBack trigger function when needed:

<a .... onclick="TriggerPostBack('control', 'arg')" .. /> 

Answer 2

You can use the following way too:

<a id="myLink" href="#" 
    onclick="document.getElementById('<%=ServerControl.ClientID%>').Event(); 
    return false;">OK</a>