I have stored an excel file within an SQL Server Table having the corresponding column data type as varbinary (MAX) through a VB .NET windows application form. how can I retrieve and open the stored excel file for manipulation?
View 2 RepliesI'm using this code to retrieve the list of files from a FTP server
Dim request As FtpWebRequest = WebRequest.Create("[URL]")
request.Credentials = New NetworkCredential(username, password)
request.Method = WebRequestMethods.Ftp.ListDirectoryDetails
Dim response As FtpWebResponse = request.GetResponse()
Dim responseStream As Stream = response.GetResponseStream()
Dim reader As StreamReader = New StreamReader(responseStream)
messagebox.show (reader.ReadLine)
It gives me alot of information that I dont need, I know that I can use:
request.Method = WebRequestMethods.Ftp.ListDirectory
Which only retrieves the file name but when I try to change it, it gives me an error. Error number 550. ListDirectory so I can only get the file name?
i have been in state of hectic for the last 2 days making lot of research and finally made this code worked it for me. My problem is that, how can i make this code retrieve the image from sql server database...use picturebox to load it in the vb.net program.
Dim myfilelocation
As
String =
"C:myPicturesmyimage.png"
[code]....
Is it also possible to change the location of image where its getting the image. i mean, i would like to tell other computers to get their images from anywhere as long as it brings images to my server.i mean, say that comp1 which is connected to my database server for storing and retreiving information, gets his image from his location then the application sends the image to my server...the application retreives the image from the server..as simple as that.
i have return the follwoing to retrieving server date
Private Structure TIME_OF_DAY_INFO
Dim tod_elapsedt As Long
Dim tod_msecs As Long
Dim tod_hours As Long
[code]....
im getting error "arithematic operation resulted in an overflow
I have VB.net console application which is working fine locally. It should start once I double click it.I created a setup project (using Setup and Deployment wizard) and publish it on the server, it does not work. It just flashes and then goes away.Would there be any dependencies I'm overlooking?
I included during my setup-
Primary output from 'myapp'
Source files from 'myapp'
Debug Symbols from 'myapp'
I even tried to add the exe (which works on my machine separately on the server, but does the same.
I use VB.net to create a Windows Service . its job is to connect a server ( for exemple \10.10.10.10ox named P: and collect files .but the problem is the result of mapping the server ( Dir P: = "" ) return nothing i don't find my files !!!Do i have to use the ftp in windows service ?? because when i use a windows form apllication there is no problems and I find all the files
View 3 RepliesIs it possible to store excel, word, pdf, .rar .zip files to a column in a table of a SQL Server 2005 DB.And also open the fie with excel, word, acrobat reader, etc????My other sollution would be to store the file on a location on a server and only sory the filename and location in my db and then open them with "Process.Start("filename")".My main problem with solution 2 is this:Lets say I install the programm on a pc called "manager". When I use the savefiledialog and I am on the manager pc the string C:/myfiles/test.xls will be stored
View 1 RepliesI've inherited a .NET app to support / enhance which reads in a couple of files of high hundreds of thousands of rows, and one of millions of row.The original developer left me code like :-
For Each ModelListRow As String In ModelListDataArray
If ModelListRow.Trim.Length = 0 Or ModelListRow.Contains(",") = False Then
GoTo SKIP_ROW
[code].....
and it takes an age (well, nearly half an hour) to import these files.
retriving the DNS server ip of my computer. But with my codes i only manage to the IP address of my computer.
Dim IPAddress As IPAddress = Dns.GetHostEntry(Dns.GetHostName).AddressList(1)
Dim strIPAddress As String = IPAddress.ToString
TextBox3.Text = strIPAddress
I am facing a problem when i am retrieving image from sql-server's database. I am using this code
View 6 Repliesmy code doesn't show anything when ever I start on my button "start recording" it starts to record every keystroke on the and show it in a textbox and after that i am trying to get that data into text of a sql 2005 database with vb vs2008 but when ever I click on the button to show me the saved data , retrieve from database, it doesn't show anything, why?
and I also want to create new row everytime the new object is created...thnx
Databse Class
[code]
Imports System.Data.SqlClient
Public Class DataSaver
Private sqlConnection1 As SqlConnection
[Code].....
im having trouble retrieving pdf files from a database and displaying them on a web form i am able to upload it from a dialog but cant retrieve from a access database. below is code that i have written to retrieve and display the pdf . it runs but doesnt display the pdf in the windows form nor does it give any errors .
Dim picture As Byte()
Dim count As Integer
Try
[Code]....
May I ask a question to you all.I have vb.net project that generate sales report from SQL Server Database.I changed SQL Server 2005 Express to SQL Server 2005 Standard Edition.
After that my program can't run properly and every time I got Time Out Expire message.
That program work properly with SQL Server 2005 Express.May I request suggestion how to fix this.
I have a website that was written in VBSCRIPT that I am moving over to VB.NET. Until I have time to get to rewriting some pages/applications,I would like to update some of the code so they work a bit better.I am trying to grab a server variable on the VBSCRIPT page that contains our username from the enterprise login.I have 2 test pages here, one with language="VB" at the top and the other language="VBSCRIPT".
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Server Variables</title>[code].....
The VBSCRIPT page will list variables with no data when they have data on the VB page and in ALL_HTTP. Is there any way I can get VBSCRIPT to gather the correct info for all the server variables?
EDIT: These are the variables that vary between VB and VBS AUTH_USER, REMOTE_USER - logged in user on VBS, iis_anon on VB REMOTE_PORT - not listed in VBS
The following are listed in VBS, but have no data
HTTP_SERVER_PROTOCOL
HTTP_SM_TRANSACTIONID[code].....
Also there is a custom on I wish to get that is used for our enterprise authentication.
I have Memberships and Bookings tables in database containing an attribute cust_id which is primary key in Memberships and reference key in Bookings. When i am executing data reader I want it to read cust_id values from membership table but it is reading it from the bookings table. Also when i compare two cust_id values, 1 taken from a textbox and the other taken from database column, even though both are same but the comparison result is false. I have compared using string.equals(str1, str2) and have also compared the two directly using if statement but in both cases even if the string is same but result is otherwise. [Code]
View 2 Replieshow to connect sql server to forms, and also retrieving files from database to txtbox.
View 1 RepliesI am kinda new to VB, but have used C# to pull data from a SQL Server db using DataTables and Reader, etc, however I am at a loss as to how to accomplish this in VB.I have a variable, which the user specifies, that I wish to use as a parameter in a SQL string, much like the following: "SELECT x FROM y WHERE x = '@param'" The result will then be stored in a string variable and I wiill do what I have to do with it.
[code]...
i have created a table named students with photo as varbinary(max)
i have designed a form with two buttons(insert and retrieve) and a picture box on it
Under insert button:
Try
Dim st As
New FileStream(OpenFileDialog1.FileName, FileMode.Open, FileAccess.Read)
[Code]....
inserting image is no problem but when i retrive image in picturebox it gives i message as "invalid object name students"
I'm using VS2010 Express. I have a VB.net project, where I need to find the metadata of individual files; Artist, Author, Comments, etc. (Specifically I need to find the video length in time of .wtv files). I have searched, but could only find VB6 examples and other code snippets that simply didn't work as they required some retired com or dll to do it. How do I do it in the latest VB.net? NOT VB6, C# or anything else. VB.Net in Visual Studio 2010 Express.
View 20 Repliesi am working with the XML.i created a new winapp,added a label to my form.then i added xml file by : Add - > New Item-> XMLFile1.xml.[code]all i want to do is to display the message present in the body part in the label present in the form1.
View 1 RepliesI'm currently battling to retrieve an image from SQL Server 2008 R2 in an asp webapplication using vb.net. The image is stored in the SQL Server 2008 R2 database as an image type. I've been researching for the past few days and can't seem to find anything solid on this topic. Apparently, the image has to be retrieved using
View 1 RepliesIs there a way to set session variables during login that are then available to reports? We have a reporting services server where we move and denormalize data from our transaction system for reporting purposes. In order to allow our users to login with the same user name and password from the transactional system we have set up custom forms authentication and after much trial and error it is finally working. In addition we have the authorization accessing our transactional system so that any changes in user authority is immediately reflected in Reporting Services.
Our problem now is that we would like to add some additional features such as locking down parameters depending on user authority/groups in our transactional system. We have found a way to do it but it's inefficient, basically we have stored procedures that will query our transactional system to check for access. The problem is that these queries will often be run for every report request even though the answer is unlikely to change. It would be nice to have access to session level data that can be set once during log in and then accessed from the reports.
how can I Retreiving the duration of a video file without using the media player
View 1 RepliesIm taking over a project that pulls information from a database.Currently I have everything I need except the username.The person who setup the project did it as a web project so he used the MemberShip class to create unique user keys based on the person's username.
The username is not stored anywhere in the database only these userID keys.
The client wants a desktop app that mimics the website behavior of writing to the database.
Problem:I ask the user to enter in a username at the login. The username connects to the database on the server.I have no way of grabbing any user info after this point as the primary key(USERID) is a unique key and not a username. Is there a way to convert a MemberShip ProviderUserkey into a string Username or am I screwed?
i am working on my academic project in which i need to retrieve data from sql server table to textbox and image in vb.net . i am able to retrive data either in text box or only image can anyone help me out to get data in textbox as wel as image in picturebox.
View 1 RepliesI have the following code at the beginning of the file:
Imports
Office = Microsoft.Office.Core
Imports
[code].....
now the remaining things are done-able but im stuck in new requirement posted by Client which he needs to upload all images from Sql Server to Oracle Database now since old application stores images Path it is kind of new story now ?(:
i tried to build sample application since am not familiar with kind of above requested modification here is my code so far to upload images
'' Sql connection is over
Dim fs as new fileStream (imgPath , io.fileMod.Open , Io.FileAccess.Read)
Dim imgByte (fs.length -1 ) as byte
[Code]......
I am trying to retrieve an image from a table in sql 2005 server. The field is set to image. I am trying to put the image strait into a picture box.
Here is my code I am using:
Dim strSQL As String = Nothing
strSQL = "select top 1 i.image_data" & _
" from " & mdlMainLib.GetNGConfigInfo(False, False, True) & ".dbo.person as p" & _
" inner join " & mdlMainLib.GetNGConfigInfo(False, False, True) & ".dbo.images as i on p.image_id = i.image_id" & _
" where person_id = '" & sPersonID & "'"
[Code] .....
On the line ME.pb1.image = image.fromstream(stream) I keep getting a "ArgumentException was unhandled, Parameter is not valid." And that all I get to go on.
I have the following code so far that's reading from my Xml Document:
For Each node As XmlNode In nodes
If node.NodeType = XmlNodeType.Element Then
' If name of node is FileTypes, then this is a main node
[Code]....
I'm trying to store the content of the current childnode in ftype but I'm having trouble figuring out how. How could I do this?
Here's what I was looking for:
mainNode.ChildNodes.Item(i).FirstChild.InnerText.ToString()
I have a database (Seeds1) that is connected to my project. I have gone in manually and entered data in to my database which is an Access. How do I retrieve information from my database into my program.
View 2 Replies