asp2.0 textbox.Attributes.Add("onfocus", "this.value=function()")
this.textbox.Attributes.Add( "onfocus ",   "this.value=function() ")


function为后台函数;

private   string   function()
{
        return   Other.getNum();
}

Other.getNum()为类库中定义的方法；

如何将取得textbox的焦点时。将function()返回的值傅给textbox？？？

------解决方案--------------------
//这段是客户端脚本，除非是ajax,否则不能取到服务器方法的返回值得
this.value=function()
------解决方案--------------------
用AJAXPRO

this.textbox.Attributes.Add( "onfocus ", "this.value=命名空间.类.function() ")

[Ajaxpro.AjaxMethod()]
private string function()
{
return Other.getNum();
}


------解决方案--------------------
<input onfocus= "this.value=x() ">
<script>
function x()
{
return 'ok '
}
</script>
------解决方案--------------------
用ajaxpro
1。工程添加对ajaxpro的引用
2.修改web config，增加
<location path= "ajaxpro ">
<system.web>
<httpHandlers>
<add verb= "* " path= "*.ashx " type= "AjaxPro.AjaxHandlerFactory,AjaxPro "/>
</httpHandlers>
<!--
If you need to have Ajax.NET Professional methods running on the
login page you may have to enable your own authorization configuration
here.
-->
<!--
<authorization>
<deny users= "? "/>
</authorization>
-->
</system.web>
</location>
3.在page load里面写
AjaxPro.Utility.RegisterTypeForAjax(typeof(PersonManage_PersonData_PersonalData));
this.TextBox1.Attributes.Add( "onfocus ", "this.value = PersonManage_PersonData_PersonalData.getPeopleID().value ");
------解决方案--------------------
顺便提点无关话题的
string str = i.ToString( "000# ");
格式化成4位的不够四位前面补0
------解决方案--------------------
使用Ajax:
首先,在Page_Load中插入:Ajax.Utility.RegisterTypeForAjax(typeof(WebForm1.Other));
然后在Other类文件中得方法getNum()的上面插入语句:[Ajax.AjaxMethod]
这样就可以啦,记得要引入Ajax.dll文件哟~~
昨天刚刚学会的~~~~~