Check Mysql Column In .net?
Jan 22, 2009If sqlquery = "Select admin FROM userlist = True" Then
Form2.Show()
Else
Form1.Show()
End If
My login script works its checking if admin from userlist = true is what i can't seem to get working.
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Check Box Error Message : Cannot Set Column,The Value Violates The MaxLength Limit Of This Column
Jan 30, 2010I am trying to placed several check boxes (15) in a group box or on a form. I receive the following error message in Visual Studio:
Cannot set column, "The value violates the MaxLength limit of this column".
Add Data To Column In MySQL Row?
Jun 2, 2011So I have a text box in a form. The test box needs to take the value entered and insert it into a column within a row in MySQL. I know it's connecting to the MySQL online, I have a message box telling me so upon a successful connection. I'm just having problems adding the value. Here's my code: Public Class frmOptions Dim ServerString As String = "server=db4free.net; Port =3306; user id=dailylogmain; password=XXXXXXX; database=dailylogmain;" Dim SQLConnection As MySqlConnection = New MySqlConnection
Private Sub frmOptions_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]...
Checking The Mysql Column?
Mar 30, 2012I have a working login script. It connects to my database but i need to have it search the column status to see if the user loging in is either admin user or mod. and so far i can't get anything to work.Here is my code i have for it checking the column
Code:If sqlquery = "Select * FROM userlist WHERE status = 'admin'" Then Form2.Show() Else Form1.Show() End If
[code]....
Grab A Column In MySQL In .NET?
Sep 3, 2011I have just learned MySQL in VB.NET, but I am having a complication..When I grab a SELECT Query, I want to get - lets say the 'username' column in each row it receives. How would I do that?
MySQL.CommandText = "SELECT * FROM online"
MySQL.ExecuteNonQuery()
Label1.Text = 'usernamehere'
MySQL Returning Only Column Name Not Value
Dec 30, 2011myCommand.CommandText = "SELECT 'USED' FROM `KEYS` WHERE `KEYS`.`KEY` = '" + TextBox1.Text + "'"
Dim myReader As MySqlDataReader
myReader = myCommand.ExecuteReader
While (myReader.Read())
MessageBox.Show(myReader.GetString(0))
End While
The returning string is "USED". But that is wrong: it should be returning integer 0 instead. Why is that? I changed the MessageBox line to MessageBox.Show(myReader.GetInt16(0)) but now it sends me an error telling me that the input string is not in the right format..
Get The Total Value From A Summation Value Of Column, MySQL?
Aug 29, 2011I learned about this query 2 days ago:-
SELECT SUM(DTotal) AS Monthly FROM bdailytotal
but how I'm going to view the total value of the summation? I had been searching for this but most of the answers I get is for PHP. Can someone show me how to assign that total value to a variable in VB.NET?
Or teach me how to assign that total value to another table.
MySQL Combine Row Results Into A New Column
Jan 26, 2011I am trying to set up a query to return data to a VB.Net datagrid. I want to rollup the results into a new column kinda like below:[code]I tried using "group_concat" but for some reason it rolled up the entire list on teams into a column regardless of match_no.[code]
View 2 RepliesCheck If Exists Command In MySQL
Oct 28, 2009How can i check if a value exists in mysql lets say if user: "Nick" exists."SELECT CHECKIFEXISTS (Value) FROM..." ???
View 3 RepliesCheck Manual That Corresponds To Your MySQL?
Jan 15, 2012You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near and I don't know how does this happen because whenever I check the SQL that I have made including the inserted data, it shows no error.
View 2 RepliesHow To Check If Database Exists In MySQL
May 7, 2012I want to now how to check if a database exists in MySQl Server from Vb2010.PBL (Visual Studio 2010 Professional, Win 7 64 bit Ultimate)
View 1 RepliesGet Column Names In Mysql Tables Using VB 2005?
Mar 22, 2009I have mysql database with one table , and I want to show the columns' names re;taed to the table in combobox in vb 2005
this is my mysql command :
SQL1 = " select column_name from information_schema.columns where table_name='others'; "
this is my code after execute the command and store the data set in variable ( DS ) which its type is "DataSet " :
If DS.Tables(0).Columns.Count > 0 Then
For j As Integer = 0 To DS.Tables(0).Rows.Count - 1
list1.Items.Add(DS.Tables(0).Rows(0).ToString)
Next (j)
End If
Get Data From Mysql To Datagridview Spesific Column
Mar 15, 2012I have a datagridview with 4 columns (id, name, ticket_number, destination), i just want that datagridview on column "ticket_number" to display ticket_number from mysql database and another 3 columns for user input.
View 3 RepliesGet Mysql Column-data And Place Them In Richbox?
Jul 5, 2012i have a mysql database with columns like this : id||username||password||profile and i want to get all the data saved under the ID column and place them into a richbox
View 2 RepliesHow To Add Column With Auto-Incremental Name To MySQL Table
Sep 8, 2011I'm using VB.net to write a MYSQL application and one feature I need to add is the ability to add a column for each week that my employees worked. For example I want the first column to be called "W1" and the next one to be "W2" and so on, right up to "W52". How would I add a column to my table and have it's name add 1 to its current value? If there wasn't any letters in the name it would be easy but I need it to have the "W" in the title as well to avoid confusion. to add the column I have this:
Alter Table Manager ADD W1 MediumINT;
I just need the part that adds an INTEGER to a VARCHAR datatype if possible... Maybe there should be some sort of data type conversion involved? Just to explain further, the black bar at the very top are the date stamps for each week, I would like to have this included in the datagridview if possible but it is not required. Under each week column the employees will be entering the percents they worked (example: 20%, or 0.20 is one day of work) I know this is an odd way of doing things but its mandatory... and i was wondering if it were possible to automate the creation of these columns rather than me having to manually enter them.
Php - Manipulate Var Char Column In Mysql DB If Inserted By Now()?
Dec 1, 2010the only way i could get a VB.Net program to insert a timestamp into a mysql db was using Now() in the VB and putting the column as Var Char in the Mysql DB. Have i royally screwed myself or can i still pull this back in PHP and manipulate the data, ie select * from test where date between...etc.How does mysql interpret a var char column in terms of dates/times?
View 1 RepliesVS 2010 Get Column Names From MySQL Table?
Jul 4, 2010I have written some code so i can connect to a Mysql db. But how can i get like an array of the columnnames?
View 2 RepliesCheck File Size Before Save In MySQL?
Jun 4, 2011I use Visual studio 2008 I use MySQL 5.1 I have created een database (test) table (table1 ) with field (Images) Data Type mediumblob size The maximum length of mediumblob is 16777215 (2^24 - 1) characters
I want to Check file size before save in MySQL table1.I want to avoid getting an error message when the image is too large for the mediumblobb field I now use the following code Dim conn As New MySqlConnection Dim cmd As New MySqlCommand
[Code]...
Check For Certain Entries In An Online Mysql Database?
Jul 20, 2009Is it possible for Forms to check for certain entries in an online mysql database and to create new ones? (login/registration)
View 8 RepliesConnect To A Mysql And Check If The Colum Admin = 1 ?
Feb 12, 2011i m using admin levels for a program it uses a Mysql database i now if u use a local db that u can use a dataset but how to do it when u have to Connect to a Mysql and check if the colum admin = 1 ?[code]......
View 3 RepliesVS 2010 Check If MySQL Connector/Net Is Installed?
Apr 30, 2010I've got a vb app that writes data to a remote mysql database.
When I run the app on a client that does not have the mysql connector it crashes (obviously)
How do I programatically check if the connector is installed on the client and throw up a nice error advising to install it - instead of the unhandled exception error - could not load mysql.data etc error?
VS 2008 Appen Textbox Contents To MYSQL Column?
Apr 7, 2011I am doing database coding for the first time. I wanted to get connected to MYSQL database with "Root" as username, "Password" as password , "DBNAME" as database name, "Local Host" as host and Append the contents of a textbox control to MYSQL column. So can anybody please post code bit in VB.Net for doing this task.
View 17 RepliesMySQL Parameters / AddWithValue - How To Avoid To Check For Nulls
Sep 15, 2010Let's say I have a MySql stored procedure that inserts a record with some nullable CHAR fields. In VB.NET if I don't check for Nothing (or Null in other languages), I get an exception from the db driver, so I write:
command.CommandType = CommandType.StoredProcedure;
command.Parameters.AddWithValue("_name", if(name Is Nothing, "", name)).Direction = ParameterDirection.Input;
And this is the first thing I don't like; I'd like to pass Nothing and the driver knows it has to put NULL in the Db. But then, in the stored procedure, I have to check back the field if it is empty:
INSERT INTO mytable
(name, -- other 200 char fields)
VALUES
(NULLIF(_name, ''),
-- other 200 char fields
)
I have to check for nothingness/emptiness twice. Is there a better, more direct, way? Even worse, for non reference types (i.e: Integers) the check for nothingness makes no sense, since a primitive type can't be nothing (yes, I could set an Integer to a non meaningful value, say -1 for a positive id, but...).
Sql - LINQ Generating Bad Query - Error Unknown Column (MySQL)
Sep 16, 2010I'm developing in MVC2 using VB.NET and MySQL and ran into a problem trying to convert a simple SQL query to LINQ. SQL Query:
[Code]...
Looking at that query its easy to spot whats causing the error. Simply, the most inner query only returns 2 columns, while the query right above it is trying to SELECT 3, thus the Unknown Column Error. So why is this happening? What is wrong with my LINQ query?
How To Properly Connect To MySQL Database Check If A Login Is Valid
Jul 30, 2010how to properly connect to a MySQL database check if a login is valid.Basically i want someone to write me an example of how i connect to a MySQL database, check if username is correct, check if password is correct. If username and password is correct- it should return True as of boolean dim.
View 2 RepliesProperly Connect To A MySQL Database Check If A Login Is Valid?
Aug 19, 2010how to properly connect to a MySQL database check if a login is valid.Basically i want someone to write me an example of how i connect to a MySQL database, check if username is correct, check if password is correct. If username and password is correct- it should return True as of boolean dim.Otherwise it should return false.
View 1 RepliesMySQL - Error - Can't Find FULLTEXT Index Matching The Column List
Mar 24, 2009I am getting this error in MySQL on search for keywords. The error: Can't find FULLTEXT index matching the column list. My Database Table is a MyISAM and my dataTypes I am searching are Text. Any Ideas why I would get the above error?
View 6 RepliesMySQL - Select Points Column From User Table (Entered Username)
Jun 27, 2012I have this MySQL Query glitch in my VB.NET program. Here is the query in VB.NET:
"SELECT Points FROM user WHERE Username = '" & UsernameText.Text & "';"
It will select the points column from the user table from the Username they entered. When I deploy this it will set the value for points to 0 on their account. I'm not even inserting anything in.
VS 2008 - Make The Server Check It With The Local VBulletin MySQL Database For The Username And Password?
Nov 14, 2009I have a chat server / client system running, but I want users to authenticate with my vBulletin forum database.I don't want the client to do it, because it is possible to fake the 'successful login' and connect with a fake username. I want to send the username and password details to the server, and make the server check it with the local vBulletin MySQL database for the username and password.Is there a way to do this? To my knowledge vBulletin has a username and a password entries in the database which is salted, and the salt varies from user to user.
View 7 RepliesAsp.net - Bind Check On Column?
Jul 15, 2011But I'm having a problem with showing the right info in a gridview.
Basically I've got a maintenance tool for an application. And I want to make it multi language.
This is a check for the language:
'setting the column name where to get the text resource from
Dim comment As String = "comment"
If (licentie.getlanguage() = "NL") Then
[Code]....
So far this works. But in my template I've got the following code in the gridview:
<asp:Label ID="LabelType" runat="server" Text='<%# Bind("Comment") %>' />
How do I set the column 'comment_NL' when the language is set 'NL' in the bind?