Parameter not valid exception loading System Drawing Image

Question

Why am I getting the exception  Parameter not valid  in my code   MemoryStream ms   new MemoryStream byteArrayIn   System Drawing Image returnImage   System Drawing Image FromStream ms     The length of byteArrayIn is 169014  I am getting this exception despite the fact that no value in it is greater than 255

User · Answer

This error is caused by binary data being inserted into a buffer. To solve this problem, you should insert one statement in your code.

This statement is:

obj_FileStream.Read(Img, 0, Convert.ToInt32(obj_FileStream.Length));

Example:

FileStream obj_FileStream = new FileStream(str_ImagePath, FileMode.OpenOrCreate, FileAccess.Read);
Byte[] Img = new Byte[obj_FileStream.Length];
obj_FileStream.Read(Img, 0, Convert.ToInt32(obj_FileStream.Length));         
dt_NewsFeedByRow.Rows[0][6] = Img;

User · Answer

Just Follow this to Insert values into database    Connection String    con Open     sqlQuery    INSERT INTO  dbo   Client    Client ID   Client Name   Phone   Address   Image   VALUES      txtClientID Text           txtClientName Text           txtPhoneno Text           txtaddress Text       image                     cmd   new SqlCommand sqlQuery  con                   cmd Parameters Add   image   SqlDbType Image                   cmd Parameters   image   Value   img                img is a byte object                 MemoryStream ms   new MemoryStream                pictureBox1 Image Save ms pictureBox1 Image RawFormat               byte   img   ms ToArray                         cmd ExecuteNonQuery                    con Close

User · Answer

My guess is that byteArrayIn doesn t contain valid image data   Please give more information though    Which line of code is throwing an exception  What s the message  Where did you get byteArrayIn from  and are you sure it should contain a valid image

User · Answer

The  parameter is not valid  exception thrown by Image FromStream   tells you that the stream is not a  valid  or  recognised  format  Watch the memory streams  especially if you are taking various offsets of bytes from a file      1  Create a junk memory stream  pass it to Image FromStream and     get the  parameter is not valid   MemoryStream ms   new MemoryStream new Byte    0x00  0x01  0x02    System Drawing Image returnImage   System Drawing Image FromStream ms        2  Create a junk memory stream  pass it to Image FromStream    without verification  MemoryStream ms   new MemoryStream new Byte    0x00  0x01  0x02    System Drawing Image returnImage   System Drawing Image FromStream ms  false  true     Example 2 will work  note that useEmbeddedColorManagement must be false for validateImageData to be valid   May be easiest to debug by dumping the memory stream to a file and inspecting the content

User · Answer

Most of the time when this happens it is bad data in the SQL column  This is the proper way to insert into an image column   INSERT INTO  TableX   ImgColumn  VALUES    SELECT   FROM OPENROWSET BULK N C       Picture 010 png   SINGLE BLOB  as tempimg     Most people do it incorrectly this way   INSERT INTO  TableX   ImgColumn  VALUES   C       Picture 010 png

User · Answer

byte   fileData   null  using  var binaryReader   new BinaryReader Request Files 0  InputStream         fileData   binaryReader ReadBytes Request Files 0  ContentLength     ImageConverter imageConverter   new System Drawing ImageConverter    System Drawing Image image   imageConverter ConvertFrom fileData  as System Drawing Image  image Save imageFullPath  System Drawing Imaging ImageFormat Jpeg

User · Answer

I had the same problem and apparently is solved now  despite this and some other gdi  exceptions are very misleading  I found that actually the problem was that the parameter being sent to a Bitmap constructor was not valid  I have this code   using  System IO FileStream fs   new System IO FileStream inputImage  System IO FileMode Open  System IO FileAccess ReadWrite         try               using  Bitmap bitmap    Bitmap Image FromStream fs  true  false                         try                               bitmap Save OutputImage     bmp   System Drawing Imaging ImageFormat Bmp                   GC Collect                              catch  Exception ex                                throw ex                                    catch  ArgumentException aex                throw new Exception  The file received from the Map Server is not a valid jpeg image   aex             The following line was causing an error   Bitmap bitmap    Bitmap Image FromStream fs  true  false    The file stream was built from the file downloaded from the Map Server  My app was sending the request incorrectly to get the image  and the server was returning something with the jpg extension  but was actually a html telling me that an error ocurred  So I was taking that image and trying to build a Bitmap with it  The fix was to control  validate the image for a valid jpeg image   Hope it helps

User · Answer

all the solutions given doesnt work   dont concentrate only on the retrieving part  luk at the inserting of the image  i did the same mistake  I tuk an image from hard disk and saved it to database  The problem lies in the insert command  luk at my fault code      public bool convertImage                 try                       MemoryStream ms   new MemoryStream                pictureBox1 Image Save ms  ImageFormat Jpeg               photo   new byte ms Length               ms Position   0              ms Read photo  0  photo Length               return true                    catch                       MessageBox Show  image can not be converted                return false                      public void insertImage                   SqlConnection con   new SqlConnection            try                       cs Close                cs Open                da UpdateCommand   new SqlCommand  UPDATE All students SET disco      photo   WHERE Reg no        Convert ToString textBox1 Text        cs               da UpdateCommand ExecuteNonQuery                cs Close                cs Open                int i   da UpdateCommand ExecuteNonQuery                if  i  gt  0                                MessageBox Show  Successfully Inserted                                        catch                       MessageBox Show  Error in Connection                      cs Close            The above code shows succesfully inserted    but actualy its saving the image in the form of wrong datatype   whereas the datatype must bt  image    so i improved the code      public bool convertImage                 try                       MemoryStream ms   new MemoryStream                pictureBox1 Image Save ms  ImageFormat Jpeg               photo   new byte ms Length               ms Position   0              ms Read photo  0  photo Length               return true                    catch                       MessageBox Show  image can not be converted                return false                      public void insertImage                   SqlConnection con   new SqlConnection            try                       cs Close                cs Open                  THIS WHERE THE CODE MUST BE CHANGED gt  gt  gt  gt  gt  gt  gt  gt  gt  gt  gt  gt  gt  gt               da UpdateCommand   new SqlCommand  UPDATE All students SET disco    img WHERE Reg no        Convert ToString textBox1 Text        cs               da UpdateCommand Parameters Add   img   SqlDbType Image    CHANGED TO IMAGE DATATYPE                da UpdateCommand Parameters   img   Value   photo              da UpdateCommand ExecuteNonQuery                cs Close                cs Open                int i   da UpdateCommand ExecuteNonQuery                if  i  gt  0                                MessageBox Show  Successfully Inserted                                        catch                       MessageBox Show  Error in Connection                      cs Close            100  gurantee that there will be no PARAMETER NOT VALID error in retrieving    SOLVED

User · Answer

Which line is throwing the exception  The new MemoryStream       or the Image FromStream       And what is the byteArrayIn  Is it a byte    I only ask because of the comment  And none of value in it is not greater than 255  - which of course  is automatic for a byte     As a more obvious question  does the binary actually contain an image in a sensible format   For example  the following  although not great code  works fine       byte   data   File ReadAllBytes   d  extn png       not a good idea        MemoryStream ms   new MemoryStream data       Image img   Image FromStream ms       Console WriteLine img Width       Console WriteLine img Height

[c#] "Parameter not valid" exception loading System.Drawing.Image

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