dim bmp as drawing.bitmap '图片
dim ds as data.dataset '数据集
dim da as data.sqlclient.sqldataadapter '适配器
......
存:
dim ms as new io.memorystream()
bmp.save(ms,bmp.rawformat)
dim byts as byte()=ms.toarray()
dim dr as data.datarow=ds.tables(0).newrow()
dr.beginedit()
dr.item("bmp")=byts
dr.endedit
da.update(ds)
ms.close()
取:
da.fill(ds)
dim byts as byte()=ds.table(0).rows(0).item("bmp")
dim ms as new io.memorystream(byts)
bmp=drawing.image.fromimage(ms)
ms.close()