C# - Creating And Save An Image From A Byte[] Causes Parameter Is Not Valid Exception?
Nov 18, 2010
I have implemented the following functionality that connects to webservice and downloads a favicon from a given site and saves it to a byte[] which I store in our database. I now want to set it up so that it saves the icon to the disk. However I am getting a "Parameter is not valid" when I try and create the image from the byte[].My code is as follows..
stream.Write(imageByteArray, 0, imageByteArray.Length);
Image i = Image.FromStream(stream); // EXCEPTION HAPPENS HERE.
i.Save(@"C: mp" + filename + ".ico");
The exception occurs on the middle line. This code works perfectly 9 times out of ten, but for some favicons, even thought the icon is a valid image (or at least it appears to be and it shows in the browser when point at it) I get this exception. Does anyone have any ideas? I am pulling my hair out here!
View 2 Replies
Similar Messages:
Nov 22, 2010
I am getting a parameter is not valid exception..While saving the image
Here is my code to save the image
if (!File.Exists(pictureBox1.Tag.ToString()))
{
Image image = pictureBox1.Image;
image.Save(pictureBox1.Tag.ToString(), ImageFormat.Jpeg);
}
else
{
string delStr = pictureBox1.Tag.ToString();
pictureBox1.Image.Dispose();
File.Delete(delStr);
Image image = pictureBox1.Image;
image.Save(delStr, ImageFormat.Jpeg);
pictureBox1.Image = Image.FromFile(delStr);
}
View 2 Replies
Aug 27, 2010
I got a hard time with the Image.FromStream method in my website. The code below works perfect on my computer. But when I uploaded it to the test server, it always gives me "Parameter not valid" exception.
if (!afuImageFile.IsUploading && afuImageFile.HasFile)
{
System.Drawing.Image imgFile = System.Drawing.Image.FromStream(afuImageFile.FileContent);
}
the afuImageFile is an AsynFileUploader control in Ajax Tool Kits. afuImageFile.FileContent is a HttpInputStream.
View 1 Replies
Mar 22, 2011
This in in an ASP.NET application.
Locally, this code runs fine, but on our production server, it throws an exception of 'Parameter is not valid' when Bitmap.Save() is called.
Should I not be using System.Drawing.Bitmap because its not recommened based on this:
[URL]
Classes within the System.Drawing namespace are not supported for use within a Windows or ASP.NET service. Attempting to use these classes from within one of these application types may produce unexpected problems, such as diminished service performance and run-time exceptions.
What else could I use?
Bitmap myBitmap = new Bitmap(img);
myBitmap.SetResolution(img.HorizontalResolution, img.VerticalResolution);
// get the tiff codec info
ImageCodecInfo myImageCodecInfo = GetEncoderInfo("image/tiff");
// Create an Encoder object based on the GUID for the Compression parameter category
System.Drawing.Imaging.Encoder myEncoder = System.Drawing.Imaging.Encoder.Compression;
// create encode parameters
EncoderParameters myEncoderParameters = new EncoderParameters(1);
EncoderParameter myEncoderParameter = new EncoderParameter(myEncoder, (long)EncoderValue.CompressionCCITT4);
myEncoderParameters.Param[0] = myEncoderParameter;
// save as a tiff
myBitmap.Save(input, myImageCodecInfo, myEncoderParameters);
View 3 Replies
Dec 28, 2010
How can I save image in db as byte array and show the saved image as slide show in my web page with C# asp.net 3.5
View 1 Replies
Apr 26, 2010
I am trying to display an image from database, and I keep ending up with an error Parameter is not valid. Bitmap bm2 = new Bitmap(targetW, targetH);
I have tried different ways but I can't get it to work (as you can see in my commented code). I am having trouble on the saving it to the database process, displaying it isn't a problem (when I had valid images)
[Code]....
View 3 Replies
Apr 3, 2010
Not sure if this is the correct section to ask this but this is regarding storing datatype problem.im trying to convert an image file retrieve from a folder and convert it to Byte so that i can save into database
In below function i retrieve and convert the image from a folder to byte
[Code]....
Then i set ImageUrl in PageLoad
[Code]....
My image datatype in database is image
View 1 Replies
Dec 6, 2010
This is actually a problem with a local report (RDLC) as opposed to an SQL report but this seemed to be the closest forum. I'm simply trying to have my page programatically open my report in PDF format. Ideally the preview wouldn't have to load at all but the way of doing it in pure code without loading a page with a ReportViewer control seems complicated to me, especially as the report has several subforms, all with different datasources (from an SQL server database).
So I'll settle for a page with a ReportViewer control which automatically opens the report in PDF when the page loads. I can't believe how much code is required for this! There are lots of tutorials on the Internet for this and I've tried several but without success. It seems to always fail at the same line, when adding values to the byte array.
[Code]....
View 3 Replies
Aug 19, 2010
I need to take a byte array and save as pdf. How can I do that?
View 4 Replies
Jun 7, 2010
I have
byte[] a = HashEncrypt("a");
with
public byte[] HashEncrypt(string password)
{
SHA512Managed sha = new SHA512Managed();
byte[] hash = sha.ComputeHash(UnicodeEncoding.Unicode.GetBytes(password));
return hash;
}
I want to save byte[] a to my database. My database field is a varbinary(64). I'm using SQL Server 2008. I want to know the insert query with C# code. I am using ADO.NET
View 1 Replies
Mar 4, 2011
wenever my insert fails ..exception helps me on if ther is duplicate id in database.
but when valid insertion happen in database , exception is again fired, which i dont want.
My code is below:
[Code]....
View 4 Replies
Mar 8, 2010
I receive following errormsg: System.Exception: String was not recognized as a valid DateTime.How can I change following code to avoid this?
[Code]....
View 3 Replies
Apr 13, 2010
I'm trying to get image from database into picturebox
pictureBox1.Image = Image.FromStream(new MemoryStream((byte[])ds.Tables[0].Rows[i].ItemArray[0]));
But I am getting error:
parameter is not valid
View 1 Replies
Aug 12, 2010
I have a working application to save an image file to my sql database (Saves as "Original_Image" in the DB TBL_ImageGallery). I have a file limit on the upload of 1 MB. This also works great and the image is being saved beautifully. I found a bit of an issue. Being i am working on a network with 2 bonded T1 connections the streaming of images to my site, when tested internally, is effortless. I am not sure that this will be the same with a generic bandwidth. I want to store the original image size into the databse (already done) but also store a smaller sized (in bytes not actual size [Width, Height]) to my database in a "ThumbNail" column. This will allow the browser to only have to pass the "Thumbnail" sized image, obviously this needs to be much smaller than the original (ex: 1MB orignal I want to save as 12KB image in the thumbnail column), to the thumbnail img control in the user's interface.
I am not sure if this is possible or if there is a need of third party controls. I am interested in doing this as either a stored procedure or in the C# code on an event fire. There may be a better / other solution to this and if that is the case I am also interested
View 4 Replies
Feb 28, 2011
I am using web services to retrieve one record from database. here in this record there is one image field.In web service, the record is converted to xml document and sent to client
when i send this record to client thru webservice , this photo is converted as byte[].
to check before giving to client, i checked my webservice. for that i took a new .aspx page and i retreived my record in to dataset and binded that to gridview. In gridview, I could see my image in byte[] format
I want to change this byte[] to previous image format in my asp.net page.
I am unable to change. I searched in google, I am unable to solve my problem.
View 2 Replies
Oct 11, 2010
i save picture as image in sql database for user profile
now i have a page that sow user profile information an im this page i have a image control to show user avatar with.
in code behind with Userprofile.Avatar code i got the image as byte
how can i bind the image with this code?
View 1 Replies
Jul 30, 2010
Is there a control that you can use? It can be done by fetching a binaryread from an aspx page but why there isn't a simple free image control that you can put in the page and feed it a byte array?
View 15 Replies
Apr 2, 2010
i got an image display in my system, note that it is not an uploaded file, it is display in <asp:Image> form
My question is, how do i use that image and convert it to a byte data so that i can save into database?
View 22 Replies
May 7, 2010
I get the data of the stored image on database as byte[] array;then I convert it to System.Drawing.Image like the code shown below;
public System.Drawing.Image CreateImage(byte[] bytes)
{
System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(bytes);
[code]...
View 1 Replies
Jul 22, 2010
I get this Microsoft .NET Framework start up error. when i try to run a window project.
i am working on visual studio2005 (.NET FRAMEWORK2.0).
i am working on win 7 machine & i am not able to edit machine.config file.coz it is read only type.
below is the error ....
See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
Exception Text
System.ArgumentException: Parameter is not valid.
at System.Drawing.Bitmap..ctor(String filename)
at HumanHistology.frmquiz1.FillOptions()
at HumanHistology.frmquiz1.btnnext_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
Loaded Assemblies
mscorlib
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4927 (NetFXspW7.050727-4900)
CodeBase:
file:///C:/Windows/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll.........
View 3 Replies
Mar 2, 2011
I have been able to import an excel file sql bulkcopy locally. But when I publish the code to the server I get the following error messages:
Exception Message: 'C:MyTest.xls' is not a valid path. Make sure that the path name is spelled correctly and that you are connected to the server on which the file resides.
Exception Source: Microsoft JET Database Engine
Here is code:
[code]....
View 2 Replies
May 8, 2010
I am develping an application that integrates with an RFID kit. The problem is, the kit comes with an .cs class that accepts data stored in a byte array however, each information stored in the array respresents an int. I wanted to store String information in each array but, my research suggest that a String itself can be converted to a byte array and not a byte....here the code from the .cs class:
byte BlockNo = 0;
byte[] BlockData = new byte[16];
byte ReturnCode = 0;
[code]....
Each t_b*.text respresents an int. Is there a way I can stored a String in a single byte block?
View 1 Replies
Mar 21, 2011
Is it better to store the image into sql server as a byte array or store the image's location to sql server and the image to the server?
View 2 Replies
May 7, 2015
i am not getting the output. I can able to display the image using generic handler.What i need is to display without using generic handler.
View 1 Replies
Mar 25, 2010
I have a problem in my application. I have deployed application on server. i have a string in dd/mm/yyyy format. to which when i am trying to parse in datetime it is working fine on my server when i am working locally on server. but when i am trying it remotely(client) it is giving exception saying string is not recognized as valid datetime format. This is how i am trying the code.
[Code]....
View 6 Replies
