在asp.net ajax中使用javascript

aspx

     < form id = " form1 "  runat = " server " >

         < asp:Button ID = " Button1 "  runat = " server "  Text = " Button "  OnClick = " Button1_Click "   />

     </ form >

cs

     protected   void  Page_Load( object  sender, EventArgs e)
    {

    }

     protected   void  Button1_Click( object  sender, EventArgs e)
    {
        ClientScriptManager cs  =   this .ClientScript;
        cs.RegisterArrayDeclaration( " Hello " ,  " 1, 2, 3 " );
        cs.RegisterClientScriptBlock( this .GetType(),  " HelloWorld " ,  " function helloWorld(){alert(1);} " ,  true );
        cs.RegisterClientScriptInclude( " HelloWorld " ,  " HelloWorld.js " );
         //  cs.RegisterClientScriptResource(
        cs.RegisterExpandoAttribute( this .Button1.ClientID,  " Hello " ,  " World " );
        cs.RegisterHiddenField( " hello " ,  " world " );
        cs.RegisterOnSubmitStatement( this .GetType(),  " HelloWorld " ,  " return window.confirm('Do you really want to submit the form?') " );
        cs.RegisterStartupScript( this .GetType(),  " HelloWorld " ,  " <script>alert('The page has loaded!')</script> " );
    }

点击Button1后生成的html

     < form name = " form1 "  method = " post "  action = " ClientScriptManager.aspx "  onsubmit = " javascript:return WebForm_OnSubmit(); "  id = " form1 " >
< div >
< input type = " hidden "  name = " hello "  id = " hello "  value = " world "   />
< input type = " hidden "  name = " __VIEWSTATE "  id = " __VIEWSTATE "  value = " /wEPDwUKMTQ2OTkzNDMyMWRkXQusG/GEJI5thnlOYBE9TxuzDXA= "   />
</ div >


< script type = " text/javascript " >
// <![CDATA[
function helloWorld(){alert( 1 );} // ]]>
</ script >

< script src = " HelloWorld.js "  type = " text/javascript " ></ script >
< script type = " text/javascript " >
// <![CDATA[
function WebForm_OnSubmit() {
return  window.confirm( ' Do you really want to submit the form? ' );
return   true ;
}
// ]]>
</ script >


         < input type = " submit "  name = " Button1 "  value = " Button "  id = " Button1 "   />

    
< script type = " text/javascript " >
// <![CDATA[
var Hello  =    new  Array( 1 ,  2 ,  3 );
// ]]>
</ script >

< script type = " text/javascript " >
// <![CDATA[
var Button1  =  document.all  ?  document.all[ " Button1 " ] : document.getElementById( " Button1 " );
Button1.Hello  =   " World " ;
// ]]>
</ script >

< div >

     < input type = " hidden "  name = " __EVENTVALIDATION "  id = " __EVENTVALIDATION "  value = " /wEWAgLg9frACwKM54rGBnQtBc2fVh5CkTBe8MjX+hmuyng2 "   />
</ div >
< script > alert( ' The page has loaded! ' ) </ script ></ form >

注意使用 RegisterStartupScript方法生成的javascript是添加到</form>标签前面的
而是用 RegisterClientScriptBlock方法成的javascript是添加到<form>后面的，生成的位置不一样