页面部分代码：
<html>
<head runat="server">
<script language="javascript">
function EventGet(obj)
{
obj.disabled="disabled";
__doPostBack(obj.id, "");
return false;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:Button ID="btn_submit" runat="server" OnClick="btn_submit_Click" OnClientClick="return EventGet(this);" Text="Submit" />
</form>
</body>
</html>
<head runat="server">
<script language="javascript">
function EventGet(obj)
{
obj.disabled="disabled";
__doPostBack(obj.id, "");
return false;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:Button ID="btn_submit" runat="server" OnClick="btn_submit_Click" OnClientClick="return EventGet(this);" Text="Submit" />
</form>
</body>
</html>
服务器端代码：
public partial class test : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
ClientScript.GetPostBackEventReference(btn_submit, "");
}
protected void btn_submit_Click(object sender, EventArgs e)
{
int i = System.Environment.TickCount / 1000;
while (System.Environment.TickCount / 1000 - i < 3)
{
}
btn_submit.Text = i.ToString();
}
}
{
protected void Page_Load(object sender, EventArgs e)
{
ClientScript.GetPostBackEventReference(btn_submit, "");
}
protected void btn_submit_Click(object sender, EventArgs e)
{
int i = System.Environment.TickCount / 1000;
while (System.Environment.TickCount / 1000 - i < 3)
{
}
btn_submit.Text = i.ToString();
}
}
其中while部分仅为演示按钮变灰的状态。
最终效果。
单击按钮后页面进行服务器端的代码处理，同时整个过程按钮程灰色不可用状态。
待服务器脚本执行完成后，按钮重新可用。
