Retrieving Information From A MySQL Database
Mar 15, 2009I'm new to VB.NET and having problem with retrieving information from a MySQL database, when populating the datagrid. [code]
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VS 2010 - Database Mysql Connection Information
Dec 22, 2011I'm wondering if I create a program that connects to a mysql database, will they be able to decompile it and do anything with the mysql connection information?
View 18 RepliesVS2010 MySqlException Was Unhandled - Pass Information From A VB Form To MySQL Database
Jun 8, 2011I am trying to pass some information from a VB form to my MySQL database. i have named all the textbox's the same as the field in the database and checked all my database fields and textbox names which are all correct. When i try to enter information into a form I sometimes get an error at the .executeNonQuery section of the code.
To test, I outputted the SQLStatement string to a textbox ( which pulled through all the fields from the textboxes correctly) then manually inputted the completed SQL query into the database and it worked. But when I try to do this in one go it seems to fail if there is too much text ( if i enter 'a' into each field it works). Are they limits to the size of the SQL query that can be passed from VB?? all the MySql database fields are set to text with no size limits.
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[2008] Web Service - Mysql Connectors To Send And Retreive Information From My Database
Jan 30, 2009Currently I have been using mysql connectors to send and retreive information from my database. Someone suggested that a web service (wdsl? etc) would be a more efficient way of sending information both ways.
View 9 RepliesRetrieving DLL Information In .NET?
Apr 8, 2011My problem:
Given a list of DLL paths, find their version number and all assemblies referenced. Some may point to the same DLL but with a different path or version.
My Code:
Dim otherDomain As AppDomain = AppDomain.CreateDomain("otherDomain")
otherDomain.DoCallBack(Sub()
Assembly.ReflectionOnlyLoadFrom("filePath")
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Retrieving Information From A Web Page?
Feb 4, 2010how to collect a piece of information from a web page. Here is the web page I want to retrieve the information from: RuneScape - The Number 1 Free Multiplayer Game
I would like to retrieve the first "Price" of the item and collect the price every time I execute the code.I understand how to retrieve the source code of the webpage and split strings but how would I retrieve that price?
Retrieving Data From MYSQL Dataset?
Apr 2, 2010I have worked out how to get the MySql data into the dataset:Dim DataSet_1 as New DataSet()
Dim SQL_Cmd_1 as New MySqlCommand("Select * from Table where feild = X")
Dim SQL _Dat_Adapter_1 as New MySqlDataAdapter (SQL_CMD_1)
SQL_Cmd_1.Connection = New MySqlConnection("server=localhost;user id=user;password=pwd;database=db")
SQL_Cmd_1.Connection.Open()
'MessageBox.Show("Connection Opened Successfully")
SQL_Dat_Adapter_1.Fill(DataSet_1)
SQL_Cmd_1.Connection.Close()
If the query returns 8 column values and I want to read those values into 8 feilds on a windows form - How do I do it?
Retrieving Information From Access DB In VB 2010?
Oct 24, 2010I've been trying to get information from a Access DB that I have added into VB 2010, the code is as follows:
Imports System.Data.OleDb
Private Sub login_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmd_login.Click
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Retrieving Information From Access To List Box?
Nov 7, 2010Am using MS Access as my back end and I am having a table called "Dept" with 2 columns (dename & cname). In Vb.Net when I click a command button, all the data's of the first column should be displayed in ListBox1 and the Second column in ListBox2. I do not know how to proceed
View 1 RepliesRetrieving Task/Service Information?
Mar 11, 2011I'm trying to understand how I would retrieve information about a running process on my machine from a VB.Net routine.For instance, Assume I open Task Manager and see a process called "Bob.exe".From Task manager I can see the PID for Bob.exe, the memory it uses, the I/O information, etc.I want to be able to query the machine for this information for Bob.exe from a method within VB.Net.
View 5 Replies.net - Retrieving Mysql Connection Strings From App.config?
Oct 24, 2011How can I call the connection string by name from an app.config file in my vb.net program?
View 1 RepliesStoring And Retrieving Rich Text From MySQL?
Jul 15, 2009I have a question, i need to store the value of richtextbox to MySQL and retrive the value from MYSQL to richtextbox. can you give me a code in vb.net? and will the formating be affected like the font and alignment?
View 6 RepliesAutomatic Logging Into Website And Retrieving Information From It?
Aug 8, 2009I want to create a program in Visual Basic Express which will log into a website by inputting the user name and password for that site and then retrieve certain data from
View 1 RepliesVS 2008 Method Of Retrieving Hardware Information?
Nov 17, 2009I need to pull hardware info and display into some type of a control like a ListView. I've been doing some general research and found that most people have used WMI. I would like to avoid WMI if possible because of possible compatibility problems.However, if that's the best way, then that's the way I'll go.I was wondering if anyone knew of other methods, perhaps an API or other unmanaged code?
View 3 RepliesVS 2010 MYSQL - Add Info To Database User Informations Using Mysql Database
May 1, 2011How connect Vb.Net to MYSQL..? How to add info to database user informations using mysql database. How to call login infos using mysql.
View 8 RepliesMySQL Count Rows Count Rows And Gain Access To Other Information In A Row Based On Provoided Information
Oct 8, 2009I have a fair bit of experience with VB.NET and C# (In this case I chose VB.NET, blame my laziness), but I do most of my professional work using PHP. I have no experience what so ever in using any database with VB.NET let alone MySQL.Just FYI, at the moment I am only trying to Query the database to gather the information required to activate. The Activation wizard and algorithm building (which is finished anyway), and everything else will come soon. I chose the MySQL database because I have experience with it, and it seems the best option for remote usage.The whole idea already works in PHP, I'm just have major issues moving it accross into VB.NET (Using the MySQL Connector.NET);I understand the basics, and all I need to know how to do is Count Rows and gain access to the other information in a row based on provoided information (in PHP, through mysql_ result)
So, here goes nothing, this is the Query code I am using in PHP to complete the job I want to do in VB.NET. [code] As you can see, I basically need to get the PHP code into VB.NET to fit into the 'btnQueryDB.Click' Command in VB.NET. By Equivalent, the Product ID in VB.NET will come from 'txtPID' and similar, Serial Number will come from txtSNUM. Once counted to be 1, the Activation Code and Status will be fed into 2 other text boxes in the form. (acCode, and acStatus).
Store Picture As BLOB In MySQL Database And Retrieve From MySQL Db Directly Into Picturebox ?
Apr 11, 2011I have determined thanks to the last q & a that there is something wrong with my "save to db" code as well as my "retrieve to picture" code. Even If I manually save the pic in the db it stil wont retreive. This is code i patched together from 3 or 4 examples around the net.
Dim filename As String = txtName.Text + ".jpg"
Dim FileSize As UInt32
Dim ImageStream As System.IO.MemoryStream[code]......
OLEDB Connection - Pull Information From Three Different Database Tables And Compiling The Information Onto One Screen
Jun 9, 2011The program is currently trying to pull information from three different database tables and compiling the information onto one screen, to do this i am using three different connections and a function to handle the data at each stage. The issue is as my code hits PageLoadStage of "2" and runs the QueryDatabase() Function i am encountering an error of: "OleDB exception unhandled: No value given for one or more of the required parameters." This occurs on line 15 of the first code snippet. Can anyone explain this and/or identify any code issues if that is the cause.
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Make A Login System Mysql Try To Connect To A Mysql Database?
May 3, 2010I am trying to make a login system mysql try to connect to a mysql database.
Here is my code:
Imports MySql.Data.MySqlClient
Public Class LoginForm1
Dim MySqlConnection As MySqlConnection
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
MySqlConnection = New MySqlConnection()
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Mysql Database Connect With Mysql-connector-net
Jan 30, 2011I can have mysql database. but i have not mysql. how to connect this database vb.net 2005. but i have mysql-connector-net . I want to mysql-connector-net use to connect this database. database path(C:Documents and SettingsAdminMy DocumentsVB.NETStock delnaSTC.sql)
View 3 RepliesSave Data In Microsoft Access Database And Retrieving It Back From Database?
Nov 19, 2010can anyone teach me how to save data in microsoft access database and retrieving it back from database?[code]so, how do i save it in that and how do i load their data by typing their ic no only..
View 5 RepliesMySQL Query - Updating Account Information Displaying In Labels
Apr 19, 2010I have been coding an application for a LeaderBoard for a game. I have all the Login sorted using Mysql and even have all the Account infomation displaying in lables etc. for account info form. Now I am trying to UPDATE information and this is how I was trying to do this...
Dim UpdateInfo As New MySqlDataAdapter
Dim mycommand As New MySqlCommand()
Dim mydata As MySqlDataReader
Dim query = "UPDATE Login SET Pword = '" + UpdateTxtBox.Text + "' WHERE Uname = " + Login.Uname
mycommand.Connection = conn
mycommand.CommandText = query
UpdateInfo.SelectCommand = mycommand
mydata = mycommand.ExecuteReader()
But comes back with an Error saying... Unknown column 'username here' in 'where clause'. Now the username is in the database as I have just logged in with it and I am taking it I have the Query wrong somewhere.
Retrieving Information - Retrieve The First Product And It Repeat E Same Product In My Second Textbox
Aug 11, 2009Right now i have a form in the VB where there are 2 combobox in it. user can choose from a range of products that comes together with some description and these are to be stored in a database table.. when i retrieve these data from another form in VB, i'm only able to retrieve the first product and it repeat e same product in my second textbox.
View 6 RepliesRead Information From Mysql Server And Write All On Table Name Links To A File?
Aug 5, 2010How do i read information from a mysql server and write all info on table name links to a file?
View 3 RepliesError When Retrieving Value From Database?
May 14, 2012Dim NewOutwarsDeliveryNoteNumber As Integer
Dim iSql As String = "SELECT MAX(OutwardsRefNumber) FROM NewOutwards"
Dim da As OleDbDataAdapter = New OleDbDataAdapter(iSql, LoginForm1.Conn)
[code]....
when I try and run this code it gives me the error that says "Column 'OutwardsRefNumber' does not belong to table ."BUt I am 100% sure this column is in my table. what can I do to correct it?
Retrieving A Bit Column From Sql Database?
Jul 26, 2011I have encountered a problem where in my database I have a column that is a bit either 0 or 1 specifying if a user is an admin or is account suspended or not. And in my VB code I am trying to retrieve that bit. Example code:
Dim dtRequests As DataTable
dtRequests = New DataTable("Users")
dtRequests.Columns.Add("SESLoginID", System.Type.GetType("System.Int32"))
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I tried getting rdr.GetByte(3), this tells me cast not valid, but there is no function of which will say GetBit, and if such exists I could not find it.
Retrieving A PIN Code From A Database?
Mar 11, 2009I am coding a banking and ATM application, which is split into two parts. In one part the employees of the bank can open new accounts for customers, edit accounts, etc. It includes assigning a unique PIN code for the customer. This is all saving to a database. The customer then uses the ATM part of the application to withdraw money. They use a unique PIN code to access their account. The problem that I'm having is retrieving the PIN from the database. I want to write a simple If statement, to match the PIN entered with the corresponding PIN in the database, so that it will retrieve all the relevant customer's details, eg. bank balance. The PIN is successfully saving to the database through the following....
Private Sub btnCommit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCommit.Click
If inc <> -1 Then
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So how do I retrieve the PIN from the database that matches with the PIN entered and hence, retrieves bank balance, etc?
Retrieving Data From Database?
Oct 17, 2010I am using two textboxes, one for roll number and the other for the corresponding roll number.
And I am using 4 command Buttons
Move First
Move Previous
Move Next
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Retrieving Pdf Files From A Database?
Mar 1, 2011im 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
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Retrieving Picture From Database?
Dec 15, 2011i can save the picture in the database, now i have to retrieve it. this is my code for the saving of the picture,
Dim ms As New MemoryStream()
studentpic.Image.Save(ms, studentpic.Image.RawFormat)
Dim arrImage() As Byte = ms.GetBuffer
ms.Close()
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i saw on the net that i have to the reverse of the pic, i have to convert byte into image.