help running javascript in my webpart

Question

I am making a visual webpart in SP 2010, and I need help on how to run some javascript.

As you can see I made a js file in the root of the webpart

As well I changed its type to embedded resource

In the AssemblyInfo.cs I added

[assembly: System.Web.UI.WebResource("JScript1.js", "text/javascript")]

In the javascript file I added

function button_click() {
    alert('button clicked');
}
button_click();

And on the page load function of the webpart I added:

Page.ClientScript.RegisterClientScriptResource(GetType(), "JScript1.js");  

But when I test the webpart, nothing happens.

Does anyone know why?

I expect the alert code to work but it isn't...

Also how can I call a function from the javascript file?

I don't want to attach a onclick event or anything, I want something like

call_function("JScript1.js", "button_click();");

Can anyone help please?

Answer 1

hi

1-create mapped folder for layouts in your project.

2-add a java script file(myScript.js) to that folder

3-write your java script Code

5- in custom page's Code Behind, in page_Load function , add bellow code.

ScriptLink.RegisterScriptAfterUI(this.Page, "/_layouts/myScript.js", false, true);
  

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yaşamak bir eylemdir

Answer 2

Ok I changed it to this:

I kept it as embedded resource.

I put this in the page load function, but it's saying ScriptLink doesn't exist in the current context.

ScriptLink.RegisterScriptAfterUI(this.Page, "/_layouts/myScript.js", false, true); 

What am I doing wrong?

Also do I stil need this in the AssembyInfo.cs?

[assembly: System.Web.UI.WebResource("myScript.js", "text/javascript")]

Answer 3

you do not need changing assemblyInfo. remove lines that you added manualy

build action most be Content

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yaşamak bir eylemdir

Answer 4

What do you mean by this:

"remove lines that you added manualy"

Which lines?

And do you know how to fix the ScriptLink  not being found error?

Thanks

Answer 5

You said that, 

In the AssemblyInfo.cs I added

[assembly: System.Web.UI.WebResource("JScript1.js", "text/javascript")]

if you added that line manually remove it

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yaşamak bir eylemdir

Answer 6

ok thanks, so for ScriptLink  do I need a "using x" ?

Answer 7

oh I figured it out, I need

using Microsoft.SharePoint.WebControls;

to run ScriptLink.

Ok but now how can I call a function in javascript? I don't want to use a button clicked event.

Answer 8

Hi rvands,

To call JavaScript function in .net, you can use RegisterStartupScript, you can get more information about this in the following links:
ClientScriptManager.RegisterStartupScript method:
http://msdn.microsoft.com/en-us/library/asz8zsxy.aspx
how to call JavaScript code from c#:
http://stackoverflow.com/questions/9861321/how-to-call-a-javascript-function-from-c-sharp-code-behind-on-asp-net-button-cli
using JavaScript Along with ASP.NET:
http://msdn.microsoft.com/en-us/library/aa479011.aspx

Thanks,

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Qiao Wei

TechNet Community Support