Web Forms :: Take Byte Array And Save It As Pdf?Aug 19, 2010
I need to take a byte array and save as pdf. How can I do that?View 4 Replies
I need to take a byte array and save as pdf. How can I do that?View 4 Replies
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;
byte ReturnCode = 0;
Each t_b*.text respresents an int. Is there a way I can stored a String in a single byte block?
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 3.5View 1 Replies
How can I convert DataSet to byte arrayView 2 Replies
if (Session["image"] != null)
ImageButton1.ImageUrl = "~/IMAGE/pic.jpg?" + DateTime.Now.Ticks.ToString();
The session key image is from another aspx page
string strPhoto = Request.Form["imageData"]; //Get the image from flash file
byte photo = Convert.FromBase64String(strPhoto);
FileStream fs = new FileStream(Server.MapPath("~/IMAGE/pic.jpg"), FileMode.OpenOrCreate,
The issue is
Operand type clash: nvarchar is incompatible with image.
Need to display download link with file size as(369KB, 1MB) for file's saved in database for images,pdf, doc, docx, xlsx.
How to calculate file size for any format of file saved in database..?
i need the to convert the byte array in to string. The byte array is a two dimentional array. Is it possible to convert?View 3 Replies
My fu.PostedFile shows data in it. Each index of the array has different value in it. But arrFileByte shows all the index have 0 as their value. I've used this very code to upload files in the database before. What might be the resaon it is not working now.
I am trying to upload a file to the database using the File Upload control. The database column is of type "text"
In the Insert command, I tried to retrieve the file and pass, but as it is a byte array, I am not able to save the data.
How to convert the byte array to string?
I have a byte array of an image on the server side.
I have an img tag on my View page.
I'm wondering how to be able to use the byte array as the image source of the img tag.
I'm retrieving the byte array in my model, passing it back to my controller method and then I'd like to store it in ViewData somehow.
Then in the $(document).ready jQuery function of the View page somehow set that byte array as the source for my IMG tag.
Is this possible?
In my aspx page I have a HTML inputfile type which allows user to browse for a spreadsheet.Once the user choses the file to upload I want to read the content of the spreadsheet and store the content into mysql database table. I am using the following code to read the content of the uploaded file and convert it into a datatable in order into insert it into database table.
if (filMyFile.PostedFile != null)
// Get a reference to PostedFile object
HttpPostedFile myFile = filMyFile.PostedFile;
// Get size of uploaded file
int nFileLen = myFile.ContentLength;
// make sure the size of the file is > 0
if (nFileLen > 0)
// Allocate a buffer for reading of the file
byte myData = new byte[nFileLen];
// Read uploaded file from the Stream
myFile.InputStream.Read(myData, 0, nFileLen);...................................
using vb.net 2005.
I'm trying to a byte array column to a table but getting an exception:
datatype argument cannot be null
The code I have is:
Does anyone know the correct syntax for this?
I have datatable with records and i have existng Excel file in my application temp folder i want to export datatable records in this excel file workbook and i want to convert this excel workbook into byte array and i want to send this byte array in reponse.write to user to give download excel file optionView 6 Replies
I have a richtextbox and i wrote it this text and add pictures like below.[img] symbolize images.
asdasdasd als dksalsdksals kdsal skdsalsdlasdkalsskdsa
if we get those images hexadecimal rtf codes we have "0ef1caf...........0d" billions characters like this.I what to convert this hexadecimal explanation to byte array to save images one by one to where i want.
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
I'm retrieving a binary file from the database, a .pdf file that I would like to let the user open and view. From what I can tell, there are two steps to do this:
1. Convert binary file to byte array
2. Convert byte array to file content
Here's what I've got so far:
This isn't working and I'm having a heck of a time trying to find a solution. I'm getting a blue squiggly under c1.docData in the Dim bArray line.
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.
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
My web page contains a file upload control that is used to select excel file. What my code does; is to read the content of that file and store its content to DB. Right now, I save this file to server and read its content using OLEDB.I want to know is there any way i can read the content without saving it on the server?View 2 Replies
Is it possible to convert the Report Document object as a byte array and store it in SQL , later retrieve and assing it to a report ?View 3 Replies
Every morning we send out an email with a text file attached. This is a manual process so I am automating it.I am using an internal mail web service. Its last two parameters are a byte array which is the file contents and a string which is the file name. I passed (...gbytes, "test.txt") and the only thing wrong with it is text.txt is XML. I want it to be text (csv is fine because there is actually four columns that come from a datatable).So I am assuming what's making it XML is this code:
System.IO.MemoryStream stream = new System.IO.MemoryStream();
System.Runtime.Serialization.IFormatter formatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
gbytes = stream.GetBuffer();
I am trying to search the Internet for how to convert a datatable to a byte array, but I can't find how to have it be text instead of XML. Also, another parameter our WS takes is a flag to say if it's XML, and I am setting this to false.
i am failing to get the Base64 string and show it as an image in the output pdf file.
I have a signautre canvas that saves the output directly into the sql database.
byte a = HashEncrypt("a");
public byte HashEncrypt(string password)
SHA512Managed sha = new SHA512Managed();
byte hash = sha.ComputeHash(UnicodeEncoding.Unicode.GetBytes(password));
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
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!
I am using Microsoft Outlook interop to display email with filled out email addresses and attachment.
Now Everything works fine except one problem with Attachment. The problem is that I am getting attachment from other methods as Byte Array and if I am not able to pass this byte array as attachment to outlook object's attachment. I believe tt requires a physical file from disk. how can I conver this Byte Array to attach it with Outlook.Attachment object?
Here is my code. In this code, for now I hardcoded attachment from "C: est.txt" but I need to change it to Byte Array, I tried but its throwing error.how can I change it to Byte Array?