Hi,I used below codes to save IMap into byte[] (to store in my database), but I can't load it again, are there anyone know what's wrong ?public byte[] SaveMap(AxPageLayoutControl pageLayOut) { IGraphicsContainer graphicsContainer = pageLayOut.GraphicsContainer; graphicsContainer.Reset(); IElement pElement = graphicsContainer.Next(); while (pElement != null) { if (pElement is IMapFrame) { IMapDocument mapDocument = new MapDocumentClass(); if (File.Exists(@D:\test.mxd)) File.Delete (@D:\test.mxd); mapDocument.New(@D:\test.mxd); mapDocument.ReplaceContents((IMxdContents)pageLayoutTo2_3.ActiveView.FocusMap); mapDocument.Save(true, true); System.IO.FileStream objFileStream = new System.IO.FileStream(@D:\test.mxd, FileMode.Open); byte[] result = new byte[objFileStream.Length]; objFileStream.Read(result, 0, (int)objFileStream.Length); return result; } pElement = graphicsContainer.Next(); } } public void LoadMap(AxPageLayoutControl pageLayOut, byte[] result) { IGraphicsContainer graphicsContainer = pageLayoutTo2_3.GraphicsContainer; graphicsContainer.Reset(); IElement pElement = graphicsContainer.Next(); while (pElement != null) { if (pElement is IMapFrame) { System.IO.FileStream oFileStream = new System.IO.FileStream(@D:\test.mxd, FileMode.Append); oFileStream.Write(result, 0, result.Length); IMapControl2 map = new MapControlClass(); map.LoadMxFile(@D:\test.mxd, Type.Missing, Type.Missing ); IMapFrame frame = new MapFrameClass(); frame.Map = map.Map; pElement = (IElement)frame; pageLayOut.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); return; } pElement = graphicsContainer.Next(); } }
