public static void RegisterJavascriptInclude(this ClientScriptManager clientScriptManager, string javascriptUrl, ResourceInsertPosition position,
string prefix, string postfix)
{
if (javascriptUrl.StartsWith("~"))
javascriptUrl = VirtualPathUtility.ToAbsolute(javascriptUrl);
Page page = (Page)HttpContext.Current.Handler;
if (page.Items[javascriptUrl] == null)
{
string script = string.Format(@"{0}<script src=""{1}"" type=""text/javascript""></script>{2}{3}", prefix, javascriptUrl, postfix, Environment.NewLine);
LiteralControl jsControl = new LiteralControl(script);
switch (position)
{
case ResourceInsertPosition.HeaderTop:
{
int index = (int)(page.Items["__ScriptResourceIndex"] ?? 0);
page.Header.Controls.AddAt(index, jsControl);
page.Items["__ScriptResourceIndex"] = ++index;
}
break;
case ResourceInsertPosition.HeaderBottom:
page.Header.Controls.Add(jsControl);
break;
case ResourceInsertPosition.BodyBottom:
page.Form.Controls.Add(jsControl);
break;
}
page.Items[javascriptUrl] = new object();
}
}
public static void RegisterCssInclude(this ClientScriptManager clientScriptManager, string cssUrl, ResourceInsertPosition position)
{
if (cssUrl.StartsWith("~"))
cssUrl = VirtualPathUtility.ToAbsolute(cssUrl);
Page page = (Page)HttpContext.Current.Handler;
if (page.Items[cssUrl] == null)
{
HtmlLink link = new HtmlLink();
link.Href = cssUrl;
link.Attributes["type"] = "text/css";
link.Attributes["rel"] = "stylesheet";
link.Attributes["title"] = "Default Style";
switch (position)
{
case ResourceInsertPosition.HeaderTop:
{
int index = (int)(page.Items["__CssResourceIndex"] ?? 0);
page.Header.Controls.AddAt(index, link);
page.Items["__CssResourceIndex"] = ++index;
}
break;
case ResourceInsertPosition.HeaderBottom:
page.Header.Controls.Add(link);
break;
case ResourceInsertPosition.BodyBottom:
page.Form.Controls.Add(link);
break;
}
page.Items[cssUrl] = new object();
}
}
public static void RegisterJavascriptInclude(this ClientScriptManager clientScriptManager, string javascriptUrl, ResourceInsertPosition position)
{
RegisterJavascriptInclude(clientScriptManager, javascriptUrl, position, string.Empty, string.Empty);
}
public static void RegisterCssResource(this ClientScriptManager clientScriptManager, Type type, string resourceName, ResourceInsertPosition position)
{
string cssUrl = clientScriptManager.GetWebResourceUrl(type, resourceName);
RegisterCssInclude(clientScriptManager, cssUrl, position);
}
public static void RegisterJavascriptResource(this ClientScriptManager clientScriptManager, Type type, string resourceName, ResourceInsertPosition position, string prefix, string postfix)
{
string javascriptUrl = clientScriptManager.GetWebResourceUrl(type, resourceName);
RegisterJavascriptInclude(clientScriptManager, javascriptUrl, position, prefix, postfix);
}
public static void RegisterJavascriptResource(this ClientScriptManager clientScriptManager, Type type, string resourceName, ResourceInsertPosition position)
{
RegisterJavascriptResource(clientScriptManager, type, resourceName, position, string.Empty, string.Empty);
}
