asp.net dynamic referencing style sheet code _ Practical Tips

1. Add CSS style: Style style = new style ();
Style. ForeColor = System.Drawing.Color.Navy;
Style. BackColor = System.Drawing.Color.LightGray;
This. Header.StyleSheet.CreateStyleRule (style, NULL, "body");
2. CSS style sheet outside the link: htmllink link = new Htmllink ();
Link. Attributes.Add ("type", "text/css");
Link. Attributes.Add ("rel", "stylesheet");
Link. Attributes.Add ("href", "~/newstyle.css");
This. HEADER.CONTROLS.ADD (link);
Method 3 Aa.aspx.cs public string m_stylesrc = string. Empty; Public variables, style file path
private void Page_Load (object sender, System.EventArgs e) {
M_STYLESRC = ".. /xxx.css "; Assignment on page load}
}
Aa.aspx <link href= "<%=m_StyleSrc%>" type= "Text/css" rel= "stylesheet" >
Method 4 The following method has not been tried, I do not know whether it can be used
protected void Page_onload (object sender, EventArgs e) {
Page.stylesheettheme = ".. /css/infomore.css ";
}
Method 5 Page:
<link href= "" rel= "stylesheet" type= "Text/css" id= "CSS" runat= "Server"/>
Background
this.css.Href = "CSS file path";