从后面的代码中，我想调用JavaScript函数并传递值 [英] From Code behind I want to call JavaScript function and pass the value

问题描述

亲爱的朋友，

从后面的代码中，我想调用JavaScript函数并传递值
我已经在下面的代码中编写了一个代码，如下所示
背后的代码:

Dear Friends,

From Code behind I want to call JavaScript function and pass the value
I have written a code in code behind as follows
Code Behind:

Disp=Disp+"<img src="path"  önClick="fun_Call_JavaScript("+str_val+")">"

从查询中检索str_val.

从后面的代码中，我想调用JavaScript函数并传递值(str_val)

str_val is retrieved from query.

From Code behind I want to call JavaScript function and pass the value(str_val)

function fun_Call_JavaScript(a)
{
alert(a)
}

但这给出了未定义的错误.
请提出如何获取值的建议.

But it gives a error as undefined.
Kindly suggest, how to get the value.

推荐答案

看看执行此操作的标准方法:
在ASP.NET中注册客户端脚本 [

Look at the standard way of doing this:
Register Client script in ASP.NET[^]

这应该可以完成工作:

Page.RegisterStartupScript("starScript"，"fun_Call_JavaScript(" + a +'');");

This should do the job:

Page.RegisterStartupScript("starScript", "fun_Call_JavaScript(''" + a + "'');");

使用:
MSDN:RegisterClientScriptBlock方法 [ MSDN:RegisterStartupScript方法 [如何使用RegisterClientScriptBlock& RegisterStartupScript [ ^ ]
从服务器注入javascript-示例 [

using:
MSDN: RegisterClientScriptBlock Method[^] OR
MSDN: RegisterStartupScript Method[^]

Using them, you can inject the scripts into a page from server side and based on certain condition (and specific to page.)
For samples on how to use it: How to Use RegisterClientScriptBlock & RegisterStartupScript[^]
Inject javascript from server - Sample[^]

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