如何从asp.net内容页面调用javascript函数 [英] How to Call javascript function from asp.net content page

问题描述

我试图从后面的代码调用javascript函数

这是我的javascript函数

i was trying to call a javascript function from a back code
this is my javascript function

<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">
<script type="text/javascript">
        function myFunction() 
			{
                alert("hello");
			}
</script>



<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">

<asp:Button ID="btnSearch" Text="Go" runat="server" OnClick="btnSearch_Click" />

i尝试在后面的代码上调用这样的函数但没有工作.....

i tried calling the function like this on back code but not working.....

protected void btnSearch_Click(object sender, EventArgs e)
        {
            this.Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "myFunction()", true);
        }

推荐答案

我尝试了我的测试应用程序的示例，它正常工作，因为您也可以尝试由我：

I tried your example with my testing application and it's working properly as you can also try the code given by me:

<asp:Content ID="Content1" runat="server" ContentPlaceHolderID="ContentPlaceHolder1">

    <script type="text/javascript">
        function GetMSG() {
            alert("hello");
        }
    </script>

</asp:Content>
<asp:Content ID="Content2" runat="server" ContentPlaceHolderID="ContentPlaceHolder2">
    <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
</asp:Content>

即使在页面背面的代码上，也可以在按钮点击时编写调用函数代码：

And write a code for invoke function on button click even on code behind page:

protected void Button1_Click(object sender, EventArgs e)
       {
           ScriptManager.RegisterStartupScript(Page, Page.GetType(), "GetMSG", "GetMSG();", true);
           //this.Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "GetMSG()", true);
       }

请尝试这个例子。我希望它对你有所帮助.....谢谢......： - ）

please try this example. I hope its helping to you.....Thank You......:-)

首先我建议你在.js文件中编写你的JavaScript并添加引用您的aspx页面。

First of all I would suggest you to write your JavaScript in .js file and add reference to your aspx page.

<script src="../JS/MyJavascript.js" type="text/javascript"></script>

然后尝试调用这样的JavaScript函数：

Then try calling your JavaScript function like this:

ScriptManager.RegisterClientScriptBlock(base.Page, this.GetType(), "MyScript", "myFunction();", true);

- Amy

如果你想在单击按钮时调用它，你可以在客户端，befreo回发，通过添加page_load

If you want to call it when the button is clicked you can do so on the client side, befreo postback, by adding in page_load

btnSearch.Attributes.Add("onlcick", "myFunction()")

您甚至可以通过返回false函数来阻止回发。

但是，如果你真的想在代码回发后从click事件中调用它：

You can even then prevent the postback by returning false form your JavaScript function.
However, if you really want to call it from the click event after postback in code:

ClientScript.RegisterStartupScript(Me.GetType(), "alert", "myFunction()", True)

这篇关于如何从asp.net内容页面调用javascript函数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！