Csharp: FreeTextbox 编辑器控件运行时错误: 'FTB_ResizeGalleryArea' 未定义

ftb.imagegallery.aspx 改一下代码：

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<form id="Form1" runat="server" enctype="multipart/form-data">             <FTB:ImageGallery id="ImageGallery1"             JavaScriptLocation="InternalResource"             UtilityImagesLocation="InternalResource"            SupportFolder="~/aspnet_client/FreeTextBox/"            AllowImageDelete="true" AllowImageUpload="true" AllowDirectoryCreate="true" AllowDirectoryDelete="true" runat="Server" />             </form>

 编辑器页的代码：aspnet_client/FreeTextBox 是编辑器的代码文件夹；保存图片的文件夹：/saveimages/

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<FTB:FreeTextBox ID="FreeTextBox1" runat="server"  SupportFolder="~/aspnet_client/FreeTextBox/"   ImageGalleryPath="~/saveimages/" language="zh-CN"  toolbarlayout="ParagraphMenu,FontFacesMenu,FontSizesMenu,FontForeColorsMenu,FontForeColorPicker,FontBackColorsMenu,FontBackColorPicker|Bold,Italic,Underline,Strikethrough,Superscript,Subscript,RemoveFormat|JustifyLeft,JustifyRight,JustifyCenter,JustifyFull;BulletedList,NumberedList,Indent,Outdent;CreateLink,Unlink,InsertImage,InsertImageFromGallery|Cut,Copy,Paste,Delete;Undo,Redo,Print,Save|SymbolsMenu,StylesMenu,InsertHtmlMenu|InsertRule,InsertDate,InsertTime|InsertTable,EditTable;InsertTableRowAfter,InsertTableRowBefore,DeleteTableRow;InsertTableColumnAfter,InsertTableColumnBefore,DeleteTableColumn|InsertForm,InsertTextBox,InsertTextArea,InsertRadioButton,InsertCheckBox,InsertDropDownList,InsertButton|InsertDiv,EditStyle,InsertImageFromGallery,Preview,SelectAll,WordClean,NetSpell"                             Width="500px" Height="260px"> </FTB:FreeTextBox>