Read Varbinary To Open In Pdf?
Apr 3, 2010I am writing a small app that reads in a .pdf file using the below parser to a Varbinary(Max) column in a sql table[code]....
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Asp.net - Open Varbinary Word Doc As HTML?
Jan 25, 2011I have a problem which I have not been able to find an answer to in months. I store word doc resumes as varbinary(max). I can retrieve the resumes based on a full-text search no problem. But the resumes are retrieved as word documents in a .ashx file with the following code. I really need to implement hit highlighting on the site so that users can see if the returned resume is a good fit or not.
I don't think this can be done from an .ashx file, so I think I need to be able to open the resume as html in an aspx page and maybe use javascript to do the hit highlighting or perhaps return the text only content of the word document somehow and manipulate the text before display with html tags.
[Code]...
Varbinary(max) To Pdf In .net?
Oct 7, 2009I wanted code to convert the varbinry to pdf and save it on Clients machine.
View 4 RepliesC# - Open A Read Only File As Non Read Only And Save/overwrite?
Sep 21, 2011I have a number of word documents I am converting. Everything is going great until I get a file that is read only. In this case I get a Save As prompt.
Is there any way to open the file in read/write format? I should have admin privileges so access isn't an issue.
I'm using VB.net to open the files. More specifically
doc = word.Documents.Open(path, Type.Missing, False, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing)
Sql - Dealing With A Varbinary Field?
Jun 10, 2009A partner of ours is making a call to a web service that includes a parameter called token. Token is the result of an MD5 hash of two numbers, and helps us authenticate that the user using our partners system. Our partner asks the user for two strings, concatenates them, runs them through MD5, and then calls our web service. The result of the MD5 is the token, and it is submitted to us as a string.
We store valid tokens in a DB - since we use the SQL Server to compute the tokens on our end, SQL seemed to be happiest storing the tokens as a varbinary, which is its native result for an MD5 computation.
We have two pieces of code that attempt to do the same thing - run a select query that pulls out a value based on the token submitted. One uses a dynamic query (which is a problem), but it works. The other one attempts to do the same thing in a parameterized (safer) fashion, it does not work - it is unable to locate the token.
Here's the two competing attempts. First, the parameterized version which fails:
byteArrayToken = System.Text.UnicodeEncoding.Unicode.GetBytes(stringToken)
scSelectThing.CommandText = "select thing from tokenstable where token=@token"
Dim param As SqlParameter = scSelectThing.Parameters.Add("@token",
[Code].....
Dealing With A Null In A Varbinary Field
Aug 3, 2009I'm trying to test a varbinary(max) field to see if it's null. I'm trying to figure out if it's a null or not in the select statement, hoping to avoid having to do this locally for every row of the returned dataset. This is the SQL I'm using,
[Code]....
Tsql - Get The Duration Of T-SQL VARBINARY Audio In SQL Or .Net?
Nov 10, 2011I've found solutions to determine the length of an audio file using WMPLib.WindowsMediaPlayer (which seems quite ugly), by using a physical file path, but nothing to determine the duration of an audio file stored in a VARBINARY field (SQL Server 2008 R2).I'm using .Net WebForms. Maybe it'd be a better idea to do this client side with jQuery, but what if I only want to expose some controls to the web browser based off of the duration?
View 1 RepliesMS SQL Server, Indicating VARBINARY(MAX) Field's Datatype In .NET?
Oct 13, 2010I use a VARBINARY(MAX) column, because I have no idea what is going to be put into it. All I know is that as of this point in time, the data will be one of many traditional data types(Integer, String, DateTime, etc.)I also have another column that is meant to indicate the DataType so the .NET application can handle the data and validate input accordingly.Right now, for testing, I have a DataType table in my database that stores the "supported" datatypes for the VARBINARY column, and a foreign key linking to the column meant to indicate the DataType. This works perfectly, but it feels akward.
View 2 RepliesQuerying An Entity That Has A Varbinary Field With LINQ?
Jun 5, 2012When I try to query an entity that has a varbinary field in it I am getting error:"The LINQ expression node type 'ArrayIndex' is not supported in LINQ to Entities."
Here is my query:
Dim query = From entity In db.Entity
Where entity.Id= Id
Select entity.VarBinaryField
[code]....
The error gets generated when I check that the query isNot nothing.
SQL UPDATE Command With Varbinary (oldvalue = Dbnull)?
Jan 4, 2011I am using VISUAL BASIC 2010, SQL Server 2008. I need to update a Table with SQlDbType Varbinary. Just for sake of Murphy loving me I gave it Varbinary(100) - while max. field lenght is 20 Non Ascii Characters on the UI Side.User is changing data in a form, data gets encrypted (into a Byte Array) then sent to the BL of the program, the business logic talks to SQL Server and fields in the Table are updated nicely with new binary values.
A problem arises however with a field that is allowed NULL values in the data table. I can retrieve NULL values from the Database and assign them the "Nothing" value. (User Interface shows a nice blank field). Once the user however changes that empty field(containing "Nothing" as value) with any data then my cmdSql.ExecuteNonquery reports no changes. (rowsaffected = 0)
I strongly suspect that I am making a mistake in the parameters of the SQlCommand of the OldFullname value, but as I said I am staring myself blind. Please review my code below and tell me where I am making that mistake...
FYI: OldFullname can't be "Nothing", and its current field is SQL NULL. All fields (except UserId) are Varbinary. Update succeeds as long as OldFullname SQL field contains data - only not when it is NULL. I don't want to set a standard value on the column (NULL or such).
Public Function SaveToDatabase(ByVal OldUser As blProgramAccess.userEncrypted, ByVal NewUser As blProgramAccess.userEncrypted) As Boolean
Dim bSaved As Boolean[code]....
Can Not Open / Read / Write Any Files
Aug 4, 2009I have an application that works in both 32 and 64 bit, except that on the 64 bit system it can not open/ read/write any files.I know the 64bit file system is different, from what I heard. How can I make up for the changes? I have no access to a 64bit system, but I want to make my program able to find and open the files.
View 1 RepliesHow To Open / Read / Write In USB Port
Feb 13, 2009How to open/Read/Write in USB Port
View 3 RepliesRead From An Excel File That Is Already Open?
Jun 6, 2011I want to rewad values from an Excel file that is always open and updating. I was using standard code to open up Excel and read from it, which worked fine, but that opens a new instance of the sheet. I need to read from a sheet that's already open.
I'm using xlWorkBook = xlApp.Workbooks.Open("c:\example.xls") which opens a new instanc of example.xls.
If example.xls is already open, is there a way of reading from it?
VS 2010 Open And Read XML In One Line?
Aug 12, 2011I'm declaring my hardcoded (specialfolder)path to the database public, but I want to read the path (not the complete string) from an XML file.Dim strConn as string = New SqlCeConnection("Data Source=" & >> path from XML<< & "database")The problem is that I need to open the XML first, before I can read the descendant.[code]Dim appXML = xelement.load(xmlPath)msgbox(appXML.descendants("db_path").nodes(0).tostring[code]
View 6 RepliesVS 2010 Open Through And Read File?
Mar 16, 2012My question is a rather simple one and to be honest with you, I am not sure if it can be done. Lets say I have a mutli-line text box, is it possible, and if so how would I go about making it so if I clicked Open with > editor I could do things with this text, such as TextBox.text = [file contents]. If it's not possible just let me know and I'll stick with open file dialogs.
View 7 RepliesOpen Textfile And Read Lines Into Array?
Jun 9, 2011I have a textfile I need to open and I need to put each line into the array. What is the simplest way to add the elements/each line's data into the array while increasing the array as it reads each line? This is blowing my mind right now..I thought about using a counter and then redim-ing the array (while preserving of course).
View 3 RepliesOpen Word 2007 Document Read-only
Mar 18, 2010Does anyone know why should I open a document in Word 2007 (either via VB6 or VB.NET) and even be open read-only and the Ribbon disabled?
Do not just be read-only, because the citizen can click the Office button or Save and "Save As".
Read From An Excel File In Program When It Is Not Open?
May 4, 2012I have a vb program that reads data from an excel sheet and displays it in a datagridview. The problem with this program is that it is able to read the data and display it only when the excel file is opened but when the excel file is not opened, it gives an error report that[code]...
View 1 RepliesRead Open Office Spreedsheet Document (.ods)?
May 10, 2012I could able to read/Write/Update Excel Spread Sheet.how can do the same with OpenOffice SpreadSheet (.ods).
PBL (Visual Studio 2010 Professional, Win 7 64 bit Ultimate)
Using A Function To Open A Text File And Read It?
Oct 12, 2009I am trying to create a form that opens a text file and displays the text in the textbox on my form. I am supposed to use a function to get the string of text from the file. Then I am supposed be able to click a button to call on the function. I have to use the OpenFileDialog to get the file and the path of the file can be anything (it is not a certain file). I am having a lot of trouble figuring out how to get this to work. I have tried coding it and this is what I have come up with:
Public Class Form_BaseClass
Function ReadFile() As String
Dim OpenFileDialog As New OpenFileDialog
[code].....
Visual Studio - Open A File As Read-only?
Jun 1, 2011In Visual Studio, how can I open a source file (from another project) in read-only mode? I want to copy some code from it, but I don't want to modify it by mistake.I don't want to change the file's attributes to read-only, as I will not be able to work on it later, unless I clear read-only.
View 1 RepliesCorrecting A String - Open A File To Read And Then Display It?
Sep 18, 2009Ive figured out how to open a file to read and then display it, and i can probably work out how to write a string to a file. The part i am stumped by is this. Say i open a text file with the following text I has a badger i then want to correct this to I have a badger.
Its just an example and not for a grammar corection program. What i want to do is detect what was said and alter it acordingly. I presume this would come under string manipulation but i cant find any details on this.
Open - Edit - Read Excel File Columns?
Sep 23, 2009How do I open, edit, read excel columns in vb.net? Like, for example, I want to know the values of column B up to the cell that it contains values.
View 1 RepliesVS 2008 Read Process Memory From An Open Program?
Dec 27, 2009I want to be able to read and write the process memory of Firefox for a game on facebook(It's kind of like cheating only you can't cheat, nothing stays permanent.) this is just for fun. The game is called happy fish aquarium and you raise fish in the game and it's just really addicting. I found a program that reads process memory and lets me change certain values in happy fish aquarium so I can make my fish tank look different or whatever. But if I reload the page it will of course go back to the original state because the fish tank's memory is held online. The point is, I just want to make a program that can read the process memory from Firefox from a certain range and bytes. like 4 bytes and a range of 00400000 to 7FFFFFFF. Does anyone know how I can achieve this? Please note, this is not for cheating purposes in any way whatsoever, it's simply for visual fun(visual meaning only I can see it). What I want to do is the same as using the add-on firebug in firefox to change the html on a webpage.
View 10 RepliesVS 2010 - Open And Read All Files On Folder In Textbox
May 10, 2011Is it possible, create a button that can start looking for files in a particular folder and open and close each 1 of them.
Eje: Search in c: est (here open and read all files on folder in texbox) test.txt, test2.txt, ...
Open 1 and close to open 2, close and open 3...
I write the folder to search, and program find and open and close all files in the folder.
File Association - Diffrent Ways To Open And Read Files?
Jun 13, 2010Before I start, I'm not 100% sure this is the right place to ask. Okey, so I'm making my own Notepad, which will contain newer features. (Private use only though) One of them being tab control.
Now I want the program to be in the "Open With..." menus for all files, so I can choose myself.
And if the program is already running when user opens a new file, I want the text to appear in a new tab, instead of a new window of the program.
I tryed to be straight forward, and keep it short. So if you need more info, fell free to ask.
Open / Close / Read / Write A Regular Disk File
Nov 18, 2011I am using Visual Basic 2010 Express and attempting to get information on how to Open, Close, Read and Write a disk file in Windows using VB. I have attempted to use help on the home page of Visual Basic 2010 Express with no results. It does not give me any instruction or sample.
View 3 RepliesOpen A Communications Port And Read Data From A Wired Usb Device?
May 16, 2011I know how to open a communications port and read data from a wired usb device.
How can I open a communications port to read data from a wireless bluetooth device?
Read Data From Excel But Can Open Exel In Normal Windows?
Mar 31, 2010I want read data from excel file and it's done.but I've problem about excel that open from program. I cant edit or open that file from ms Office.sample:I have masterCode.xls in my local drive. with vb i open that file, read data and bind into gridview.it's work. after close program, i open masterCode.xls with ms Office, that file opened but it automatically closed.when i open vb and run program again, select the same file, read data but now its error ("File is used").
Protected Sub btnUpload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpload.Click
Dim objExcel As Excel.Application
Dim objWorkBook As Excel.Workbook
[code]....
Error: Open (objFiles(lngLoop)) For Binary Lock Read Write As #hndZip_File
Apr 28, 2009I am trying to use the following stmt in VB and I am getting an error: Open (objFiles(lngLoop)) For Binary Lock Read Write As #hndZip_File On the "Open" word I am getting "Open is not declared. File I/O functionality is available in the Microsoft Visual Basic namespace." On the "For Binary Lock Read Write As #hndZip_File" I am getting "End of statement expected" I originally thought I had to add "Imports Microsoft.VisualBasic.FileIO" but this did not do anything.
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