Can a Web User Control (.ascx) use a CSS file for styling?

Here's the source of a blank .acsx file I created called LogOnBox.

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="LogOnBox.ascx.cs" Inherits="EC开发者_开发问答ommerce.Views.Shared.LogOnBox" %>

I want to drag some labels, and textboxes etc and give them style using a CSS file. How can I associate a CSS to an acsx file?

The CSS is associated to the page, and not the control specifically. But you can use the CSS in the control when the page has referenced it.

Just reference the css file in the header of the page containing the user control.

In my cases i would like to embed css and js file into dll for do that i do bellow steps and it work

step 1 Put bellow code on top of your page behind

   [assembly:WebResource("YourProjectName.Assets.Plugins.Dropzone.dist.dropzone.js",    "application/x-javascript")]
[assembly:WebResource("YourProjectName.Assets.Plugins.Dropzone.dist.dropzone.css","text/css")]
namespace Sanay.Suip.UserControls
{
    public partial class FileUpload : UserControlBase
    {

step 2

And in inInitial event by bellow codes

`protected override void OnInit(EventArgs e)
{

base.OnInit(e);
string css = "<link href=\"" + Page.ClientScript.GetWebResourceUrl(this.GetType(),
"YourProjectName.Assets.Plugins.Dropzone.dist.dropzone.css") + "\" type=\"text/css\" rel=\"stylesheet\" />";
Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "cssFile", css, false);
ClientScriptManager csm = Page.ClientScript;
csm.RegisterClientScriptResource(GetType(), "YourProjectName.Assets.Plugins.Dropzone.dist.dropzone.js");
}

`