[原創]JavaScript調用Button的伺服器端事件

來源:互聯網
上載者:User

方法一:
在JS中使用button按鈕的click方法

<script type="text/javascript">
    function JSFun2()
    {
        document.getElementById("<%= btnTest4.ClientID %>").click();
    }
</script>

方法二:
ClientScript.GetPostBackEventReference(btnTest2, "")
上面這行代碼的傳回值是一個string,"__doPostBack('btnTest2','')".

然後使用RegisterClientScriptBlock註冊一下指令碼.
string jscript = "function JSFun1(){" + ClientScript.GetPostBackEventReference(btnTest2, "") + "};";
Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "", jscript, true);

HTML
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="GetPostBackEventReference_Test._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
    <script type="text/javascript">
    function JSFun2()
    {
        document.getElementById("<%= btnTest4.ClientID %>").click();
    }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <asp:Button ID="btnTest1" runat="server" Text="Test1" />
    <asp:Button ID="btnTest2" runat="server" Text="Test2" OnClick="btnTest2_Click" />
    <br />
    <asp:Button ID="btnTest3" runat="server" Text="Test3" />
    <asp:Button ID="btnTest4" runat="server" Text="Test4" OnClick="btnTest2_Click" />
    </form>
</body>
</html>
C#
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

namespace GetPostBackEventReference_Test
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                this.btnTest1.OnClientClick = "JavaScript:JSFun1();return false;";
                this.btnTest3.OnClientClick = "JavaScript:JSFun2();return false;";
            }

            string jscript = "function JSFun1(){" + ClientScript.GetPostBackEventReference(btnTest2, "") + "};";
            Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "", jscript, true);
        }

        protected void btnTest2_Click(object sender, EventArgs e)
        {
            Response.Write(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss fffffff"));
        }
    }
}

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