AE与C#开发符号存储时对COM组件的调用返回了错误 急求高手指教

Question

//保存样式
        private void btSave_Click(object sender, EventArgs e)
        {
            //指定临时图片保存位置
            FileInfo fileInfo = new FileInfo(fileName);
            string path = fileInfo.DirectoryName;
            string bitmapFileName = path + @"\" + this.txtSymbolName.Text + ".bmp";
            //创建新的画图，并将底色清为白色
            Bitmap bitmap = new Bitmap(listBoxImage.ImageSize.Width, listBoxImage.ImageSize.Height, PixelFormat.Format24bppRgb);
            Graphics graphics = Graphics.FromImage(bitmap);
            graphics.Clear(Color.White);            Bitmap image;
            int startX;
            int startY;
            GListBoxItem glistItem;
            //将各个子样式在画图上绘制
            for (int i = 0; i < this.gListBox.Items.Count; i++)
            {
                glistItem = (GListBoxItem)this.gListBox.Items[i];
                image = (Bitmap)listBoxImage.Images[glistItem.ImageIndex];
                startX = 50 - listBoxImage.ImageSize.Width / 2;
                startY = 50 - listBoxImage.ImageSize.Height / 2;                image.MakeTransparent(image.GetPixel(0, 0));
                System.Drawing.Rectangle rectangle = new Rectangle(startX, startY, listBoxImage.ImageSize.Width, listBoxImage.ImageSize.Height);
                graphics.DrawImage(image, rectangle);
                graphics.Save();
            }
            graphics.Dispose();
            //保存画图
            bitmap.Save(bitmapFileName, System.Drawing.Imaging.ImageFormat.Bmp);            //创建图片类型，这里可以参考第五章的例子，用其他类型转换　
            IPictureLineSymbol pictureLineSymbol = new PictureLineSymbolClass();
            pictureLineSymbol.CreateLineSymbolFromFile(esriIPictureType.esriIPictureBitmap, bitmapFileName);            pictureLineSymbol.Offset = 0;
            pictureLineSymbol.Width = 10;
            pictureLineSymbol.Rotate = false;            IStyleGallery styleGallery;
            IStyleGalleryItem styleGalleryItem;
            IStyleGalleryStorage styleGalleryStorge;
            //添加新样式
            styleGalleryItem = new ServerStyleGalleryItemClass();
            styleGalleryItem.Name = this.txtSymbolName.Text;
            styleGalleryItem.Category = "default";
            object objSymbol = pictureLineSymbol;
            styleGalleryItem.Item = objSymbol;            styleGallery = new ServerStyleGalleryClass();
            styleGalleryStorge = styleGallery as IStyleGalleryStorage;
            styleGalleryStorge.TargetFile = fileName;
            styleGallery.AddItem(styleGalleryItem);
            //保存新样式
            styleGallery.SaveStyle(fileName, fileInfo.Name, "Line Symbols");
            this.Close();
            this.Dispose();
        } 在红色代码处显示异常     对 COM 组件的调用返回了错误 HRESULT E_FAIL    自己在以前运行还可以，不知道为什么现在老显示这个异常，真是急坏了希望高手不吝赐教

Answer 1

styleGallery.SaveStyle(fileName, fileInfo.Name, "Line Symbols")
就是这句显示的错误