1、AjaxEvet：

//这是一个服务端方法

protected void UpdateTimeStamp(object sender, AjaxEventArgs e)

{

this.SetTime();

}

//Html 调用上述方法

<ext:Button ID="Button1" runat="server" Text="Click Me">
            <AjaxEvents>
                <Click OnEvent="UpdateTimeStamp">
                    <EventMask ShowMask="true" MinDelay="500" Msg="Updating TimeStamp..."   />
                </Click>
            </AjaxEvents>
        </ext:Button>

OnEvent="UpdateTimeStamp" 就是指点击按钮后调用服务端方法UpdateTimeStamp 来更新某个标签的时间

2、AjaxMethod：

<script runat="server">

[AjaxMethod]

public void SetTimeStamp()

{

this.Label1.Text = string.Concat("Server Time: ", DateTime.Now.ToLongTimeString());

}

</script>

<ext:Button ID="Button5" runat="server" Text="Click Me" Icon="Lightning">

<Listeners>

<Click Handler="Coolite.AjaxMethods.SetTimeStamp();" />

</Listeners>

</ext:Button>

3、Web.Config

第一次用coolite的人基本都会漏掉配置这一至关重要的环节。如果想开启ajax事件，请记得在web.config 里做以下配置：

<httpHandlers>

<add path="*/coolite.axd" verb="*" type="Coolite.Ext.Web.ResourceManager" validate="false"/>

</httpHandlers>

<httpModules>

<add name="AjaxRequestModule" type="Coolite.Ext.Web.AjaxRequestModule, Coolite.Ext.Web"/>

</httpModules>

<modules>

<!--Coolite Config-->

<add name="AjaxRequestModule" preCondition="managedHandler" type="Coolite.Ext.Web.AjaxRequestModule, Coolite.Ext.Web"/>

</modules>

<handlers>

<!--Coolite Config-->

<add name="AjaxRequestHandler" verb="*" path="*/coolite.axd" preCondition="integratedMode" type="Coolite.Ext.Web.ResourceManager"/>

</handlers>