Java script in ASP. NET calls the c # Method

In ASP. NET development, the background and foreground interactions are often used. This section summarizes the methods for c # and Java script to operate on each other and Java script to call the c # method.
Call the Java script method in the c # code in the background
Java script code:

 
 

  
  
<script type="text/javascript" language="javascript"> 
  
  
function test()  
  
  
{  
  
  
alert("oec2003");  
  
  
return false;  
  
  
}  
  
  
</script> 
 
 

C # code:

 
 

  
  
protected void Button1_Click(object sender, EventArgs e)  
  
  
{  
  
  
ClientScript.RegisterStartupScript(this.GetType(), "clear", 
"<script>test()</script>");  
  
  
} 
 
 

Java script in ASP. NET calls the c # Method
If the method in c # has a return value, you can use the following method:
C # code

 
 

  
  
public string GetAuthStatus()  
  
  
{  
  
  
ViewState["Auth"] = "Red";  
  
  
return ViewState["Auth"].ToString();  
  
  
} 
 
 

Java script code

 
 

  
  
function getAuth()  
  
  
{  
  
  
var authStatus="<%=GetAuthStatus()%>";  
  
  
return authStatus;  
  
  
} 
 
 

In ASP. in NET, Java script calls the c # method without returning a value. You can put a button on one side and then write what you want to do in the Click Event of the button, write the following code in the client script.

 
 

  
  
document.all("button1").click(); 
 
 

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