javascript与C#后台代码
设计
javaScript函数中执行C#中的函数:
方法一、
方法二、
方法三、
方法四、
方法一:1、前台使用静态文本控件隐藏域,将js变量值写入其中,后台用request["id"]来获取值;
方法二:可以用cookie或session
方法一:1、Page.RegisterStartupScript("xx","<script>xy();</script> ");
方法二:
点击一次后,刷新网页
源:
<title>javaScript函数中执行C#代码中的函数:</title>
<script language="javascript" type="text/javascript">
// <!CDATA[
function Button2_onclick() {
document.getElementById("Button1").click();
}
function Button3_onclick() {
var a = "<%=ss()%>";
alert(a);
}
function xy()
{
alert('xy');
}
function __doPostBack(eventTarget, eventArgument)
{
var theForm = document.form1;
theForm.__doPostBack.value = eventTarget;
theFrom.__doPostBack.value = eventArgument;
theFrom.submit();
}
function SubmitKeyClick()
{
if(event.keyCode==13)
{
event.cancelBubble=true;
event.returnValue=false;
document.all.FunName.value="你要调用的函数名";
document.forms[0].submit();
}
}
//function SubmitKeyClick()
//{
// if (event.keyCode == 13)
// {
// event.cancelBubble = true;
// event.returnValue = false;
// document.all.FunName.value="你要调用的函数名";
// document.form[0].submit();
// }
//}
function Button4_onclick() {
var temp="<%=xx%>";
alert(temp);
}
// ]]>
</script>
</head>
<body>
<form >
<div>
<strong>JavaScript函数中执行C#中的函数:</strong><br />
方法一、<br />
<br />
<asp:Button runat="server" OnClick="Button1_Click" Text="Button" />
<input /><br />
<br />
方法二、<br />
<input /><br />
<br />
方法三、<br />
<input /><br />
方法四、<br />
<input onkeypress="SubmitKeyClick()" />
<input type="hidden" name="FunName" value="funname"/>
<br />
<br />
<strong>如何在JavaScript访问C#变量?</strong>
<br />
<input />
<br />
<strong>如何在C#中访问JavaScript的已有变量?</strong><br />
方法一:1、前台使用静态文本控件隐藏域,将js变量值写入其中,后台用request["id"]来获取值;<br />
<asp:Button runat="server" OnClick="Button6_Click" Text="Button" /><br />
方法二:可以用cookie或session<br />
<br />
<strong>c#中访问JavaScript函数?</strong><BR />
方法一:1、Page.RegisterStartupScript("xx","<script>xy();</script>
");<br />
<asp:Button runat="server" OnClick="Button8_Click" Text="Button" /><br />
方法二:<br />
<asp:Literal runat="server"></asp:Literal>
<asp:Button runat="server" OnClick="Button7_Click" Text="Button" />点击一次后,刷新网页</div>
</form>
后台代码:
public partial class WebForm1 : System.Web.UI.Page
{
public string xx = "xxx";
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
string strFunName = Request.Form["FunName"] != null ? Request.Form["FunName"] : "";
//根据传回来的值决定调用哪个函数
switch(strFunName)
{
case "enter()":
enter() ; //调用该函数
break;
case "其他":
//调用其他函数
break;
default:
//调用默认函数
break;
}
}
}
public void enter()
{
Response.Write("Enter()");
}
#region 方法二
public string ss()
{
return ("a");
}
#endregion
#region 方法一
protected void Button1_Click(object sender, EventArgs e)
{
Response.Write("javaScript函数中执行C#代码中的函数:");
}
#endregion
protected void LinkButton1_Click(object sender, EventArgs e)
{
Response.Write("adfasdfdsa");
}
protected void Button6_Click(object sender, EventArgs e)
{
Response.Write(Request.Form["FunName"].ToString());
}
protected void Button7_Click(object sender, EventArgs e)
{
string str;
str = "<script type='text/javascript'>";
str += "Button2_onclick();";
str += "</script>";
//Literal1.Visible=true;
Literal1.Text = str;
Literal1.Visible = false;
}
protected void Button8_Click(object sender, EventArgs e)
{
Page.RegisterStartupScript("xx", "<script>xy();</script>");
}
}
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