protected virtual IEnumerable <ScriptDescriptor> GetScriptDescriptors()
{
// Don't render any scripts when partial rendering is not enabled
if (Page != null && ScriptManager.SupportsPartialRendering && Visible)
{
ScriptControlDescriptor desc = new ScriptControlDescriptor("Sys.UI._UpdateProgress", ClientID);
string updatePanelClientID = null;
if (!String.IsNullOrEmpty(AssociatedUpdatePanelID))
{
// Try both the NamingContainer and the Page
UpdatePanel c = ControlUtil.FindTargetControl(AssociatedUpdatePanelID, this, true) as UpdatePanel;
if (c != null)
{
updatePanelClientID = c.ClientID;
}
else
{
throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.UpdateProgress_NoUpdatePanel, AssociatedUpdatePanelID));
}
}
desc.AddProperty("associatedUpdatePanelId", updatePanelClientID);
desc.AddProperty("dynamicLayout", DynamicLayout);
desc.AddProperty("displayAfter", DisplayAfter);
yield return(desc);
}
yield break;
}
protected Control FindTargetControl(bool searchNamingContainers)
{
if (String.IsNullOrEmpty(ControlID))
{
throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.UpdatePanelControlTrigger_NoControlID, Owner.ID));
}
Control foundControl = ControlUtil.FindTargetControl(ControlID, Owner, searchNamingContainers);
if (foundControl == null)
{
throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.UpdatePanelControlTrigger_ControlNotFound, ControlID, Owner.ID));
}
return(foundControl);
}
private void RenderPageCallback(HtmlTextWriter writer, Control pageControl)
{
ProcessUpdatePanels();
// Although we could use the pageControl parameter it's hard to write
// unit tests for it. Instead we just use our own page, which is the
// same instance anyway (but easier to test with).
HttpResponseBase response = _owner.IPage.Response;
response.ContentType = "text/plain";
response.Cache.SetNoServerCaching();
// Write out the version identifier, which helps the client-side deal with the response
// in a back-compatible way when there are changes made server-side.
EncodeString(writer, UpdatePanelVersionToken, String.Empty, UpdatePanelVersionNumber);
// Render the form. It will render its tag, hidden fields, etc.
// and then call our render method delegate, which will in turn render
// all the UpdatePanels
IHtmlForm formControl = _owner.IPage.Form;
formControl.SetRenderMethodDelegate(RenderFormCallback);
// Let updatePanels write directly to Response
_updatePanelWriter = writer;
// Let form header/footer write to a parser
ParserHtmlTextWriter formWriter = new ParserHtmlTextWriter();
formControl.RenderControl(formWriter);
// Write out built-in ASP.NET hidden fields that were rendered directly by the page
// or registered through RegisterHiddenField
var hiddenFields = _owner.IPage.HiddenFieldsToRender;
if (hiddenFields != null)
{
foreach (KeyValuePair <String, String> entry in hiddenFields)
{
if (ControlUtil.IsBuiltInHiddenField(entry.Key))
{
EncodeString(writer, HiddenFieldToken, entry.Key, entry.Value);
}
}
}
// Write out PageRequestManager settings that can change during an async postback.
// This is required for dynamic UpdatePanels since the list of panels could
// change.
EncodeString(writer, AsyncPostBackControlIDsToken, String.Empty, GetAsyncPostBackControlIDs(false));
EncodeString(writer, PostBackControlIDsToken, String.Empty, GetPostBackControlIDs(false));
EncodeString(writer, UpdatePanelIDsToken, String.Empty, GetAllUpdatePanelIDs());
EncodeString(writer, ChildUpdatePanelIDsToken, String.Empty, GetChildUpdatePanelIDs());
EncodeString(writer, UpdatePanelsToRefreshToken, String.Empty, GetRefreshingUpdatePanelIDs());
EncodeString(writer, AsyncPostBackTimeoutToken, String.Empty, _owner.AsyncPostBackTimeout.ToString(CultureInfo.InvariantCulture));
if (formWriter.FormAction != null)
{
EncodeString(writer, FormActionToken, String.Empty, formWriter.FormAction);
}
if (_owner.IPage.Header != null)
{
string pageTitle = _owner.IPage.Title;
if (!String.IsNullOrEmpty(pageTitle))
{
EncodeString(writer, PageTitleToken, String.Empty, pageTitle);
}
}
RenderDataItems(writer);
ProcessScriptRegistration(writer);
// We process the focus after regular script registrations to
// make sure that if it ends up including some script that it
// executes last.
ProcessFocus(writer);
}
