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我用這個代碼在我的DB保存和檢索在SQL數據庫中的圖像從C#問題
System.IO.MemoryStream ms = new System.IO.MemoryStream();
Image img = Image_Box.Image;
img.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
this.personTableAdapter1.Insert(NIC_Box.Text.Trim(), Application_Box.Text.Trim(), Name_Box.Text.Trim(), Father_Name_Box.Text.Trim(), DOB_TimePicker.Value.Date, Address_Box.Text.Trim(), City_Box.Text.Trim(), Country_Box.Text.Trim(), ms.GetBuffer());
但是當我使用此代碼檢索該
byte[] image = (byte[])Person_On_Application.Rows[0][8];
MemoryStream Stream = new MemoryStream();
Stream.Write(image, 0, image.Length);
Bitmap Display_Picture = new Bitmap(Stream);
Image_Box人員表中插入記錄.Image = Display_Picture;
它工作完全正常,但如果我用我自己生成的查詢更新此類似
System.IO.MemoryStream ms = new System.IO.MemoryStream();
Image img = Image_Box.Image;
img.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
Query = "UPDATE Person SET Person_Image ='"+ms.GetBuffer()+"' WHERE (Person_NIC = '"+NIC_Box.Text.Trim()+"')";
下一次我使用相同的代碼檢索圖像並顯示它上面的應用。計劃拋出一個異常
所以任何一個可以告訴我爲什麼我不能弄明白。