欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识！
您现在的位置是： 首页  >  IT编程

ASP.NET常用前后台调用、后台执行js、弹出模态窗口

程序员文章站 2022-07-01 18:25:02
◆Default.aspx <%@ Page Language="C#" AutoEventWireup="true" Cod...
◆Default.aspx 
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html xmlns="https://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>无标题页</title>    
</head>
<body>
<script language="javascript" type="text/javascript">
/*
    c# 常用前后台互相调用方法，示例程序
    整理人:潘晓宇 20090814
*/
//普通无参js函数
function AlertFunction()
{
alert("通过OnClientClick方法调用普通无参js函数成功!");
}


//普通有参js函数
function TestWithPar(msg)
{    
    var t = "成功！";
alert(msg+t);
}


//通过前台JS函数读取Session
function GetCSSessionValue()
{
    var mySessionValue = '<%=Session["MySession"]%>';
    alert(mySessionValue);
}


//被后台函数调用的JS函数
function InvokeByCSMethod( msg )
{
    alert(msg);
}


//JS函数调用后台函数
function InvokeCSMethod(aa,bb)
{
    //var a = '<%=InvokeByJS("这是通过前台JS函数调用后台CS中函数返回的结果！")%>';
    var a = '<%=InvokeByJS("' + aa + '","' + bb + '")%>';
    alert(a); 
}


//取得CS中的变量 值
function GetCSVarValue()
{
    var vv ='<%=strVar%>';
    alert(vv);
}


//判断Confirm对话框点击了那个按钮
function ConfirmCaseOperate()
 {
  var retVal = confirm("确认吗？")
  if (retVal)
  {
     alert("点击了确认按钮");    
  }
  else
  {
        alert("点击了取消按钮");                
  }
 }
</script>
    <form id="form1" runat="server">
    <p>
        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="普通提示信息" /><br />
        <asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="Confirm对话框" /><br />
        <asp:Button ID="Button11" runat="server" Text="Confirm对话框接收不同的操作" OnClientClick="return ConfirmCaseOperate();" /><br />
        <br />
        <asp:Button ID="Button4" runat="server" OnClick="Button4_Click" Text="通过OnClientClick方法调用普通无参js函数" OnClientClick="return AlertFunction();" />
        <br/>
        <asp:Button ID="Button3" runat="server" Text="通过OnClientClick方法调用普通有参js函数" OnClientClick="TestWithPar('通过OnClientClick方法调用普通有参js函数');" /><br />
        &nbsp;<br />
        <asp:Button ID="Button7" runat="server" OnClick="Button7_Click" Text="后台调用前台JS函数" /><br />
        <asp:Button ID="Button8" runat="server" Text="前台JS函数调用CS中普通函数" OnClick="Button8_Click" OnClientClick="returnInvokeCSMethod();" /><br />
        <br />
        <asp:Button ID="Button6" runat="server" OnClick="Button6_Click" Text="后台设定Session" /><asp:Button ID="Button5" runat="server" OnClick="Button5_Click" Text="前台JS函数读取Session" OnClientClick="return GetCSSessionValue();" /><br />
        <asp:Button ID="Button9" runat="server" OnClick="Button9_Click" Text="为后台变量付值" />
        <asp:Button ID="Button10" runat="server" Text="JS函数取得后台变量的值" OnClientClick="return GetCSVarValue();" /><br />
        &nbsp;
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        </p>
    </form>
</body>
</html>

◆Default.aspx

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text;
using System.Data.SqlClient;


public partial class _Default : System.Web.UI.Page 
{
    public string strVar = string.Empty;


    protected void Page_Load(object sender, EventArgs e)
    {
        Button2.Attributes.Add("onclick", "return confirm('确认进行吗?\\n点击【确定】按钮后,执行后台对应方法!\\n点击【取消】按钮后,不执行任何方法!')");
    }


    private void MsgAlert(string msg)
    {
        ClientScriptManager cs = Page.ClientScript;
        StringBuilder sbScript = new StringBuilder();
        sbScript.Append("<script language='JavaScript' type='text/javascript'>\n");
        sbScript.Append("<!--\n");
        sbScript.Append("alert('" + msg + "');");
        sbScript.Append("//-->\n");
        sbScript.Append("</script>\n");
        cs.RegisterStartupScript(this.GetType(), Guid.NewGuid().ToString(), sbScript.ToString(), false);
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        MsgAlert("这是普通弹出提示信息！");
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        Response.Write("执行了按钮对应的事件方法");
    }
    protected void Button4_Click(object sender, EventArgs e)
    {


    }
    protected void Button6_Click(object sender, EventArgs e)
    {
        Session["MySession"] = "我是Session";
    }
    protected void Button5_Click(object sender, EventArgs e)
    {


    }
    protected void Button7_Click(object sender, EventArgs e)
    {
        ClientScriptManager cs = Page.ClientScript;
        cs.RegisterStartupScript(this.GetType(), Guid.NewGuid().ToString(), "<script>InvokeByCSMethod('我是被后台函数调用的JS函数 ^_^...');</script>", false);
    }


    /// <summary>
    /// 被前台JS函数调用的函数
    /// </summary>
    /// <param name="strValue"></param>
    /// <returns></returns>
    public string InvokeByJS(string strValue,string strValue2)
    {
        return (strValue + strValue2);
    }
    protected void Button8_Click(object sender, EventArgs e)
    {


    }
    protected void Button9_Click(object sender, EventArgs e)
    {
        strVar = "后台变量值1234OK";
    }


    public int RunConfirmOper()
    {
        try
        {
            //SqlConnection conn = new SqlConnection("Data Source=192.168.0.20;Persist Security Info=True;Initial Catalog=VBADB;User ID=sa;Password=sa");
            //conn.Open();
            //string strSQL = "insert into T1( name, address) values ('aaaaa','bbbbbbbbb')";
            //SqlCommand cmd = new SqlCommand(strSQL, conn);
            //cmd.ExecuteNonQuery();
            //conn.Close();
            Response.Write("执行后台确认后的方法");
            return 1;
        }
        catch
        {
            return 0;
        }
        
    }


    public int RunCancelOper()
    {
        try
        {
            //SqlConnection conn = new SqlConnection("Data Source=192.168.0.20;Persist Security Info=True;Initial Catalog=VBADB;User ID=sa;Password=sa");
            //conn.Open();
            //string strSQL = "delete  T1";
            //SqlCommand cmd = new SqlCommand(strSQL, conn);
            //cmd.ExecuteNonQuery();
            //conn.Close();
            Response.Write("执行后台取消后的方法");
            return 1;
        }
        catch
        {
            return 0;
        }
        
    }


}

★Tanchu.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Tanchu.aspx.cs" Inherits="Basic_Tanchu" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html xmlns="https://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>无标题页</title>
    <script language="javascript" type="text/javascript">
    /*
        弹出模态窗体，并向新窗体付值
        整理人:潘晓宇 2009-08-15
    */
        function showQueryWindow()
        {
            var par1Value = document.getElementById("TextBox1").value;
            var par2Value = document.getElementById("TextBox2").value;
            var parValueAll = par1Value +"-"+par2Value;
            
            //var getReturnValue 为模态窗体返回值(模态窗体通过window.returnValue=xxx的方式传送返回值)
            var getReturnValue = window.showModalDialog('TanchuDetail.aspx?par='+parValueAll,'','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,left=180,top=60,width=500,height=400');  
            //var getReturnValue = window.showModalDialog('TanchuDetail.aspx');  //普通传出新模态窗口


            if(getReturnValue != null)
            {
                 var getReturnValuePar = getReturnValue.split(";");
                 document.getElementById("TextBox1").value = getReturnValuePar[0];
                 document.getElementById("TextBox2").value = getReturnValuePar[1];
            }          
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <p>
        弹出画面，在弹出画面中选择信息后附到原始画面中<br />
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" Text="js弹出" OnClientClick="showQueryWindow();" />
        <asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="后台弹出" /></p>
    </form>
</body>
</html>

★Tanchu.aspx.cs

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;


public partial class Basic_Tanchu : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        string str1 = TextBox1.Text.Trim();
        string str2 = TextBox2.Text.Trim();
        string strValueAll = str1 +"-"+ str2;
        string strSql = @"<script language='javascript' type='text/javascript'>"
                        + @"var getReturnValue = window.showModalDialog('TanchuDetail.aspx?par=" + strValueAll + "');"
                        + @"if(getReturnValue != null){"
                        + @"var getReturnValuePar = getReturnValue.split(';');"
                        + @"document.getElementById('TextBox1').value = getReturnValuePar[0];"
                        + @"document.getElementById('TextBox2').value = getReturnValuePar[1];}"
                        + @"</script>";
        RegisterStartupScript("111", strSql);
    }
}

◇TanchuDetail.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TanchuDetail.aspx.cs" Inherits="Basic_TanchuDetail" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html xmlns="https://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>被弹出的网页</title>
    <base target="_self" />
        <script language="javascript" type="text/javascript">
            function backParentWindow()
            { 
              var txt1 = document.getElementById("txt1").value;
              var txt2 = document.getElementById("txt2").value;
              
              window.returnValue = txt1 + ';'+ txt2;
              window.close();
            }
        </script>
</head>
<body>
    <form id="form1" runat="server">
    <p>
        &nbsp;<table border="0" cellpadding="0" cellspacing="0" style="width: 100%; height: 100%; background-color:Green; vertical-align:top;">
            <tr>
                <td style="text-align: left;" colspan="3" rowspan="3">
                    <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
        <asp:TextBox ID="txt1" runat="server"></asp:TextBox>&nbsp;<br />
                    <asp:Label ID="Label2" runat="server" Text="Label"></asp:Label>
        <asp:TextBox ID="txt2" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" BorderColor="#FFC0C0" Text="确定" OnClientClick="backParentWindow();" /></td>
            </tr>
            <tr>
            </tr>
            <tr>
            </tr>
        </table>
        &nbsp;
    </p>
    </form>
</body>
</html>

◇TanchuDetail.aspx.cs

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;


public partial class Basic_TanchuDetail : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        
        string parVar = Convert.ToString(Request.QueryString["par"]);
        string[] t = parVar.Split('-');
        this.txt1.Text = t[0];
        this.txt2.Text = t[1];
    }
}

上一篇： 窝窝头怎么做，做法大公开

下一篇： 吃什么蜂蜜养肝护肝效果好，吃这些可以养肝护肝

推荐阅读