Пример #1
0
        internal override void InitRecursive(Control namingContainer)
        {
            HashCodeCombiner combinedHashCode = new HashCodeCombiner();

            _cacheKey = ComputeNonVaryCacheKey(combinedHashCode);

            // Save the non-varying hash, so we don't need to recalculate it later
            _nonVaryHashCode = combinedHashCode.CombinedHash;

            PartialCachingCacheEntry cacheEntry = null;

            // Check if there is a cache entry for the non-varying key
            object tmpCacheEntry = OutputCache.GetFragment(_cacheKey, _provider);

            if (tmpCacheEntry != null)
            {
                ControlCachedVary cachedVary = tmpCacheEntry as ControlCachedVary;
                if (cachedVary != null)
                {
                    string varyCachedKey = ComputeVaryCacheKey(combinedHashCode, cachedVary);

                    // Check if there is a cache entry for the varying key
                    cacheEntry = (PartialCachingCacheEntry)OutputCache.GetFragment(varyCachedKey, _provider);
                    if (cacheEntry != null && cacheEntry._cachedVaryId != cachedVary.CachedVaryId)
                    {
                        cacheEntry = null;
                        // explicitly remove the entry
                        OutputCache.RemoveFragment(varyCachedKey, _provider);
                    }
                }
                else
                {
                    // If it wasn't a ControlCachedVary, it must be a PartialCachingCacheEntry
                    cacheEntry = (PartialCachingCacheEntry)tmpCacheEntry;
                }
            }

            // If it's a cache miss, create the control and make it our child
            if (cacheEntry == null)
            {
                // Cache miss

                _cacheEntry = new PartialCachingCacheEntry();

                _cachedCtrl = CreateCachedControl();
                Controls.Add(_cachedCtrl);

                // Make sure the Page knows about us while the control's OnInit is called
                Page.PushCachingControl(this);
                base.InitRecursive(namingContainer);
                Page.PopCachingControl();
            }
            else
            {
                // Cache hit

                _outputString   = cacheEntry.OutputString;
                _cssStyleString = cacheEntry.CssStyleString;

                // If any calls to Register* API's were made when the control was run,
                // make them now to restore correct behavior (VSWhidbey 80907)
                if (cacheEntry.RegisteredClientCalls != null)
                {
                    foreach (RegisterCallData registerCallData in cacheEntry.RegisteredClientCalls)
                    {
                        switch (registerCallData.Type)
                        {
                        case ClientAPIRegisterType.WebFormsScript:
                            Page.RegisterWebFormsScript();
                            break;

                        case ClientAPIRegisterType.PostBackScript:
                            Page.RegisterPostBackScript();
                            break;

                        case ClientAPIRegisterType.FocusScript:
                            Page.RegisterFocusScript();
                            break;

                        case ClientAPIRegisterType.ClientScriptBlocks:
                        case ClientAPIRegisterType.ClientScriptBlocksWithoutTags:
                        case ClientAPIRegisterType.ClientStartupScripts:
                        case ClientAPIRegisterType.ClientStartupScriptsWithoutTags:
                            Page.ClientScript.RegisterScriptBlock(registerCallData.Key,
                                                                  registerCallData.StringParam2, registerCallData.Type);
                            break;

                        case ClientAPIRegisterType.OnSubmitStatement:
                            Page.ClientScript.RegisterOnSubmitStatementInternal(registerCallData.Key,
                                                                                registerCallData.StringParam2);
                            break;

                        case ClientAPIRegisterType.ArrayDeclaration:
                            Page.ClientScript.RegisterArrayDeclaration(registerCallData.StringParam1,
                                                                       registerCallData.StringParam2);
                            break;

                        case ClientAPIRegisterType.HiddenField:
                            Page.ClientScript.RegisterHiddenField(registerCallData.StringParam1,
                                                                  registerCallData.StringParam2);
                            break;

                        case ClientAPIRegisterType.ExpandoAttribute:
                            Page.ClientScript.RegisterExpandoAttribute(registerCallData.StringParam1,
                                                                       registerCallData.StringParam2, registerCallData.StringParam3, false);
                            break;

                        case ClientAPIRegisterType.EventValidation:
                            if (_registeredCallDataForEventValidation == null)
                            {
                                _registeredCallDataForEventValidation = new ArrayList();
                            }

                            _registeredCallDataForEventValidation.Add(registerCallData);
                            break;

                        default:
                            Debug.Assert(false);
                            break;
                        }
                    }
                }

                base.InitRecursive(namingContainer);
            }
        }