ASP. NET Server writes JavaScript script to client

Processing scripts on the ASP. ClientScriptManager, which is the Web Form server side, is generally used. ClientScript. This object is a more common method:

1, Registerarraydeclaration: On the server side, generate an array definition to the client

Service-side code: this. Clientscript.registerarraydeclaration ("Aary", "the");

Client "source file" rendering

<script type= "Text/javascript" >
<!--
var = new Array (aary);
-
</script>

2, RegisterClientScriptBlock: Write a script block to the client, this way, does not automatically add <script type= "Text/javascript" > and </script>

Service-side code: this. Clientscript.registerclientscriptblock (this. GetType (), "sblk", "var aa=1;");

Client "source file" rendering: Var aa=1;

3, RegisterClientScriptInclude: Write a <script type= "Text/javascript" on the client src=...></script>

Service-side code: this. Clientscript.registerclientscriptinclude ("JS", "http://www.baidu.com/test.js");

Client "source file" rendered: <script src= "Http://www.baidu.com/test.js" type= "Text/javascript" ></script>

4, RegisterExpandoAttribute: This method has a minimum of three parameters, that is, the client control ID, property name, property value, the client generates a value for the control property statement

Service-side code: this. Clientscript.registerexpandoattribute ("Form1", "FormType", "form");

Client "source file" rendering:

<script type= "Text/javascript" >
<!--
var Form1 = document.all? Document.all["Form1"]: document.getElementById ("Form1");
Form1.formtype = "form";
-
</script>

5, RegisterHiddenField: Automatically generate a <input type= "hidden" on the client ...

Service-side code: this. Clientscript.registerhiddenfield ("HiddenField", "I ' m a hidden");

Client "source file" rendering:

<input type= "hidden" name= "HiddenField" id= "HiddenField" value= "I ' m a hidden"/>

6, Registeronsubmitstatement: In the client form of the onsubmit event, the specified code is automatically added

Service-Side code:

This. Clientscript.registeronsubmitstatement (this. GetType (), "onsubmit1", "var onsubmit11=1;");
This. Clientscript.registeronsubmitstatement (this. GetType (), "Onsubmit2", "var onsubmit22=2;");

Client source file Rendering: First specify an event handler for the form, such as: <form id= ... onsubmit= "Javascript:return webform_submit ();"

Next, no matter how many registeronsubmitstatement statements are used on the server, a JavaScript function is generated, And the client-side script in each Registeronsubmitstatement method is connected as the statement for the event handler:

<script type= "Text/javascript" >
<!--
function Webform_onsubmit () {
var onsubmit11=1;var onsubmit22=2;
return true;
}
-
</script>

7, RegisterStartupScript: Put the developed script code before </form>, and, the method sent to the client's code before and after will not automatically add <script> and </script>

Service-side code: this. Clientscript.registerstartupscript (this. GetType (), "Teststartup", "var jjj=2");

Client "source file" rendered: Var jjj=2

ASP. NET Server writes JavaScript script to client