如何在DevExpress MVC 21.2 RichEdit中限制另存为仅显示指定格式？

实现思路 #

要限制RichEdit“另存为”对话框仅显示.docx和.html格式，只需配置SaveFileDialog的文件过滤规则，在DevExpress MVC 21.2版本中，可通过SettingsDialogs.SaveFileDialog的相关属性实现。

修改后的完整代码 #

@Html.DevExpress().RichEdit(settings =>
{
    settings.Name = "RichEdit";
    settings.Height = 1000;
    
    settings.CallbackRouteValues = new { Controller = "Home", Action = "RichEditPartial" };
    
    settings.WorkDirectory = Server.MapPath("~/App_Data/Documents");
    
    //settings.RibbonMode = DevExpress.Web.ASPxRichEdit.RichEditRibbonMode.Ribbon;
    
    settings.Init += (s, e) =>
    {
        MVCxRichEdit re = s as MVCxRichEdit;
        
        // 设置仅显示下载区域
        re.SettingsDialogs.SaveFileDialog.DisplaySectionMode = DevExpress.Web.ASPxRichEdit.SaveFileDialogDisplaySectionMode.ShowDownloadSection;
        
        // 配置另存为对话框的格式过滤，仅保留docx和html
        re.SettingsDialogs.SaveFileDialog.Filter = "Word 文档 (*.docx)|*.docx|HTML 文档 (*.html)|*.html";
        
        // 也可直接指定允许的扩展名（二选一即可）
        // re.SettingsDialogs.SaveFileDialog.AllowedFileExtensions = new string[] { ".docx", ".html" };
    };
    
    settings.PreRender = (s, e) =>
    {
        MVCxRichEdit richEdit = (MVCxRichEdit)s;
    
        richEdit.Settings.Behavior.CreateNew = DevExpress.XtraRichEdit.DocumentCapability.Disabled;
        richEdit.Settings.Behavior.Open = DevExpress.XtraRichEdit.DocumentCapability.Disabled;
        richEdit.Settings.Behavior.Save = DevExpress.XtraRichEdit.DocumentCapability.Disabled;
    };
    
}).GetHtml()

关键说明 #

• Filter属性：采用类似常规文件对话框的过滤字符串格式，格式为[格式显示名称]|[扩展名]，多个格式用竖线|分隔，可自定义用户看到的格式名称，更直观。
• AllowedFileExtensions属性：直接指定允许的文件扩展名数组，对话框会自动匹配对应格式显示，适合不需要自定义名称的场景。
• 两种配置方式选其一即可，无需重复设置。

内容的提问来源于stack exchange，提问作者Robe79