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HTMLEditor类常用事件说明
1、HtmlEvent 事件：Html元素事件，HtmlEditor将容器内HTML中的所有事件统一冒泡到此事件中进行处理。在此事件的处理函数中可根据不同的事件类型进行不同的业务处理。
eg：
/// <summary> /// 编辑器Html事件处理函数 /// </summary> /// <param name="s"></param> /// <param name="e"></param> private void HtmlDesignEditorHtmlEvent(object s, HtmlEventArgs e) { if (e.Event == null) { return; } var sEventType = e.Event.EventType.ToLower(); var isNeedToDealEvent = IsNeedToDealEvent(e); if (isNeedToDealEvent) { switch (sEventType) { case "controlselect": //_udfSelectedControl = e.Event.SrcElement; break; case "beforeeditfocus": if (e.Event.SrcElement.tagName.ToLower() != "body") { e.Event.ReturnValue = false; e.Event.CancelBubble = true; } break; case "click": { e.Event.ReturnValue = false; e.Event.CancelBubble = true; } break; case "drop": //DoDropEvent DoDropEvent(e); break; case "dragover": //DoDragOverEvent break; case "dragend": //DoDragEndEvent DoDragEndEvent(e); break; case "dragenter": //DoDragEnter DoDragEnterEvent(e); break; case "mouseover": //DoMouseOverEvent DoMouseOverEvent(e); break; case "mousemove": //DoMouseMove DoMouseMoveEvent(e); break; case "mousedown": //DoMouseDown MultiMouseDownEvent(e); DoMouseDownEvent(e); break; case "mouseout": //DoMouseOut DoMouseOutEvent(e); break; case "mouseup": //DoMouseUp DoMouseUpEvent(e); break; case "mousewheel": //DoMouseWheel DoMouseWheelEvent(e); break; case "resizeend": DoResizeEndEvent(e); break; case "resizestart": DoResizeStartEvent(e); break; case "keydown": break; case "dblclick": DoDblClickEvent(e); break; default: DoFinish(e); break; } } }
2、ContentChanged 事件：容器内容改变事件，此事件将会在容器内容更改后触发
/// <summary> /// HTML编辑器内容改变事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void HtmlDesignEditorContentChanged(object sender, EventArgs e) { if (_isDoDragEnd || _isChangeHtml) { _behaviorManage.Clear(); _behaviorManage.AddTableBehavior(htmlDesignEditor.DocumentHTML); _behaviorManage.AddToolTipBehavior(htmlDesignEditor.DocumentHTML); _behaviorManage.AddDateTimeBehavior(htmlDesignEditor.DocumentHTML); _isChangeHtml = false; _isDoDragEnd = false; } FindViewControls(); }
3、BeforePaste 事件：内容粘贴前事件，此事件将在用户进行粘贴操作前触发，在此事件中可对粘贴的内容进行过滤整理，如处理从Word过来的数据，Excel过来的数据，清除吊不必要的内容等。
/// <summary> /// HTML编辑器进行粘贴操作前处理函数，此事件可对需要粘贴的数据进行预处理 /// </summary> /// <param name="s"></param> /// <param name="e"></param> private void HtmlDesignEditorBeforePaste(object s, BeforePasteArgs e) { if (Clipboard.ContainsText(TextDataFormat.Html)) { e.Cancel = true; MemoryStream memoryStream = Clipboard.GetData("Html Format") as MemoryStream; if (memoryStream == null) { return; } memoryStream.Position = 0; var vBytes = new byte[memoryStream.Length]; memoryStream.Read(vBytes, 0, (int) memoryStream.Length); var sText = Encoding.UTF8.GetString(vBytes); IHTMLDocument2 doc = this.htmlDesignEditor.HtmlDocument2; IHTMLTxtRange sel = doc.GetSelection().createRange() as IHTMLTxtRange; var controlSel = doc.GetSelection().createRange() as IHTMLControlRange; var length = controlSel.GetLength(); for (int i = 0; i < length;i++ ) { var control = controlSel.Item(i); } if (sel == null) { return; } var html = _coolPf.CreateHtml(sText); sel.pasteHTML(html); //idManager.AdjustmentElementID(Me.contentEditor.HtmlDocument2) // behaviorManage.AddTableBehavior(contentEditor.DocumentHTML); IHTMLElementCollection elList = this.htmlDesignEditor.DocumentHTML.GetElementsByTagName("TABLE"); foreach (IHTMLElement el in elList) { el.SetAttribute("height", el.offsetHeight, 0); } elList = this.htmlDesignEditor.DocumentHTML.GetElementsByTagName("TR"); foreach (IHTMLElement el in elList) { el.SetAttribute("height", el.offsetHeight, 0); } } }
3、BeforeNavigate 事件，页面导航前事件，此事件将在页面进行导航跳转前触发，可在此事件中进行阻止跳转。
HTMLEditor类常用事件说明
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