Databases :: Recording Individual Field Values From MySQL Database
May 3, 2010
I am using a simple Login function and need to record individual field values from MySQL database to compare with inputs.
My connection code:
Dim myConnection As MySqlConnection
Dim myDataAdapter As MySqlDataAdapter
Dim strSQL As String
myConnection = New MySqlConnection("Database=mydatabase;Data Source=xx.xxx.xx.x;port=3362;UId=myID;Password=1234;")
strSQL = "SELECT username,password FROM Login WHERE ID = '" & 1 & "'"
myDataAdapter = New MySqlDataAdapter(strSQL, myConnection)
myDataSet = New Dataset()
myDataAdapter.Fill(myDataSet,"Login")
I have confirmed it is connecting by adding the following GridView.
protected void Button3_Click(object sender, EventArgs e) { //Create a connection to the database MySqlConnection conn = new MySqlConnection("Database=kid07025;Data Source=195.178.228.254;User Id=kid07025;Password=********"); //open the connection conn.Open(); //MySQL Query which updates the row where Anvandarnamn = Anvandarnamn (recieved from a cookie) MySqlCommand cmd = new MySqlCommand("UPDATE personer SET Information=?Information,Fnamn=?Fnamn,Enamn=?Enamn,Personnr=?Personnr,Adress=?Adress,Postnr=?Postnr,Ort=?Ort WHERE Anvandarnamn=?Anvandarnamn", conn); // Update with new text cmd.Parameters.AddWithValue("?Anvandarnamn", Request.Cookies["Anvandarnamn"].Value); cmd.Parameters.AddWithValue("?Information", TextBox1.Text); cmd.Parameters.AddWithValue("?Fnamn", TextBox2.Text); cmd.Parameters.AddWithValue("?Enamn", TextBox3.Text); cmd.Parameters.AddWithValue("?Personnr",TextBox4.Text); cmd.Parameters.AddWithValue("?Adress", TextBox5.Text); cmd.Parameters.AddWithValue("?Postnr", TextBox6.Text); cmd.Parameters.AddWithValue("?Ort", TextBox7.Text); cmd.ExecuteReader(); conn.Close(); RefreshProfile(); }
I don't know what I am doing wrong here, but the database doesn't get updated when I press the button.
I want to use MVC 2 with MySQL database. Is it possible?because my shared hosting limits the size of SQL Server database, but there is no limit on Size of MySQL database.MySQL seems to take less disk space than SQL Server database which is costly on the Internet.
I did all the instructions which are in the following link: [URL] in order to do a connection between MySQL database and ASP.NET but I did not successed. Sometimes, it told me that I have a mistake in the <asp: button> and sometimes it told me that I did a mistake in calling (addImage) method. And this is my whole code:-
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="HW5._Default" %> <script> public class DataAccess { private string _strConn = @"Driver= {MySQLODBC 3.51 Driver};SERVER=localhost;DATABASE=test1;"; private OdbcConnection _objConn; public DataAccess() { this._objConn = new OdbcConnection(this._strConn); } // This function adds the Images to database public string addImage(timestamp id, byte [] data,string extension) { string strSql = "SELECT * FROM File"; DataSet ds = new DataSet("Image"); OdbcDataAdapter tempAP = new OdbcDataAdapter(strSql,this._objConn); OdbcCommandBuilder objCommand = new OdbcCommandBuilder(tempAP); tempAP.Fill(ds,"Table"); try { this._objConn.Open(); DataRow objNewRow = ds.Tables["Table"].NewRow(); objNewRow["Extension"] = extension; objNewRow["Data"] = buffer; objNewRow["ID"] = id; ds.Tables["Table"].Rows.Add(objNewRow); // trying to update the table to add the image tempAP.Update(ds,"Table"); }.....................................
I have the following piece of code in my web.config file.. I am trying to connect to a MySQL database. The code compiles fine and when I am ruuning the website I come across this error - 'Keyword not supported: 'server'.':
First one will be: I've installed MySql, Query broswer, and ODBC connector (not sure what this one does. Can anyone explain?)
Now, when im dragging a new DataGridView into the form, and try to connect it to a MySql database, i can't seem to find MySql in the databases list... why is that?
Second question, assuming everything works fine, how can i upload the database to a server and use it there?
I can think of two problems trying to do this : (1) Im not sure where my Database files are stored at... (for some reason, they are not found in MySql/Data... this folder is completly absent)
(2) While working with ACCESS, all i had to do is to point the .aspx page that did the connecting to the location of the .mdb file, but now, each time i want to reach my database, i need to send the page to the server (localhost). How will i create a connection to my database, when its on another server, in the code page ? (small code example would be nice).
My employer is changing hosting providers.Our current hosting provider offers MSSQL which we use for the database used on our website. The host we are changing to is insisting that we switch to MySQL because they only offer an older version of MSSQL and are concerned about compatibility issues.I have absolutely no experience working with MySQL and am a novice with MSSQL as well. What is the best way for me to port a database from one to the other?I have downloaded MySQL and Workbench... I've also downloaded the .Net connector as a zip file but am not sure where to extract its contents.
To start with - I'm using VS 2008/.NET 3.5 and working in a company-provided template that leaves me restricted to some/many settings that go beyond the body of the page itself. That said, I need to create a page that will display data from individual cells in a database table that, when lined up would look like a normal sentence. Based on certain criteria I would have certain sections of the sentences hide (ex. if it contains a key phrase or if it's empty).
I've seen a method in which Labels could be used to achieve this effect, where I would assign it the grid coordinates of the cell in a table, but I could never get it to work. I've been successfully connected to the table (LINQDataSource) but still have a blank canvas without this fundamental display technique as that will be all that's in it.
How to place a MYSQL database in my ASP.NET site?In what format I produces the file to my APP_DATA database folder to place it.
How to build CONNECTION STRING to database located in APP_DATA.I created a site conncted with a LOCALHOST database.Now I want to import it into my website folder APP_DATA
Im hosting my site over at some ISP, and when i try to use INSERT or UPDATE procedure, i get this error : "SELECT command denied to user 'KidumMac'@'localhost' for table 'proc' "Which is really wired for two reasons:
A. In my code i don't reference whatsoever to the MySql databse, nor the "proc" table B. In the myPHPadmin program the queries work just fine. Any insights?
the second problem is that when i try to import my database, the tables import fine, but when it gets to import the stored procedure, it tells me that the user needs SUPER PRIVILEGES for that. what is it ?
I can check whether username exists or not successfully but not for email. any ideas why it isn't working? Error message was that i did not close my connection. using System;
I am trying to develop a page where I am trying to search a database (MyQSL) and display the data in a table format. Some of the database entries, like category, is stored as integer values, but I want to display the category name in the search result (not the corresponding integer value). I have also another issue, every time I change the dropdown list values (which are having "auto postback" enabled) the <EmptyDataTemplate> is returned. At this moment I am using GridView. But I am ready to change this to any other method, like repeater or whatever...
Not that it should matter.. the 2nd value in the csv is an IP address.. its in the file as 192.168.7.25(just an example), but gets read as 192.1687, if the file is setup as delimited in the connection string, does that have any restraints on the data being read? When i open the file in notepad, the comma is at the end of the IP address, when i open it in excel it is in its own column.. so what could be causing this? Because of this issue with the truncation, that is what is causing the primary key issue.. because there are other values that are similar like these:
192.168.7.25 192.168.7.26 192.168.7.45
because if the issue, it passes each one of those as 192.1687 Here is the table structure, in case it helps resolve this issue.
[id] [int] NOT NULL, [IpAddress] [varchar](16) NOT NULL, [MacAddress] [varchar](16) NULL, [APTypeId] [int] NOT NULL, [APUser] [varchar](256) NULL, [APPass] [varchar](128) NULL, [APLocation] [varchar](20) NULL, [APFreq] [varchar](50) NOT NULL, [APBand] [varchar](50) NOT NULL,
I have a problem that currently we are use a sybase database and we want to create application that give me a output in excel report that's mean my data stored at sybase or mysql and we access it from this after it generate my report in excel form and give this output on excel format?
I have used ASD.NET code using SQL Database for Transaction operation successfully. By changing the Database Code to interface with MYSQL an Error occurs. If I remove the Transaction Code from within the the application, it works OK by displaying the MYSQL data (Read Only) in the layout of the application. I am using Mysql Essential-4.1.22-win32 and MYSQL Connector ODBC-3.51.2. My objective is to EDIT the MYSQL Data.
I need assistance on how to bind Radiobutton to database, so that whatever selection made in Radiobutton will appear in the database
I want to produce an online quiz, that will have the following fuctionality
1. it contain database with , ID, Questions, Option A, B,C, and D, Student Answer.
2.After forming the griedview in connection with the database, i form additonal colum to include Radiobutton where students are to choose the correct option.
3. I was able to configure the gridview which successfully show all the above document but the problem now is how to bind the selected option by students to the database so that i can know wether they choose the right answer or not. i wat the student answer appear in the colum named student answer in the database.
i shall be very grateful , if u can just give simple example that i can perform which shall be able to show the click on radiobutton in database not autopostback in textbox.
