VS 2008 Make MySQL/DataTable Handle Norwegian Characters?
Oct 4, 2009
I'm populating a DataTable from a MySQL-server. One of the columns contains norwegian characters (�, �, �), but they don't display correct in my datatable. I've been searching google for some answer, but I haven't found any. I've never had this problem before. Actually I'm not quite sure exactly where the problem is. It's either in the datatable or in the MySQL .NET-connector as far as I can tell. If I do the same query in the MySQL Query Browser, the characters are shown correctly, so it can't be the server.
insert a datatable into a mysql database? The way I'm doing it now is that I'm doing a for each-loop and inserting one and one row. Is there a better way to do this? I have like 500+ rows, so it takes a while to execute the loop.
I 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()
In mysql this character 💀 cause error Incorrect string value: 'xF0x9Fx92x80'
Samples of these characters are from [URL]
Say I want to analyze data from the web and found some strange character
how to remove this character 💀 ??
The occurance is rare.
In fact, how to know all characters that may be problematic for mysql and remove that? I am not saying escapeable characers. I am saying characters that are neither numeric, alphabeth, or chinese scripts, or punctuation. Characters that's totally bizarre.
I have a datagridview in which the user can add new rows. The datasource is a datatable who has a unique-constraint for the column "Position". Thus, if the user enters a position already existing, an exception is thrown. To avoid the ugly standard error message, I simply handle the dataerror-event and set e.cancel = true. This works. But if the user presses escape, the row_validated-event is triggered. I use this event to format the rows containing new data by changing the font color to red. Here another exception is thrown (SystemOutOfRange-Exception) telling me that the index xxx has no value. How can I achieve row-formatting for new/modified entries without getting this error?
Here is my code: ''' <summary> ''' Catch exception and cancel illegal action. ''' </summary> ''' <param name="sender"></param> ''' <param name="e"></param> [Code] .....
Is that possible to save values from a listbox to mysql database? I guess yes. I have a list of values in a listbox obtained from splitting a file. The strings are like numbers but they are of type string. What I need is to get those values in the database in the integer type. How can I proceed?
I have a winforms application connected to Mysql using the.Net driver. I written a class to handle to all the database functionality. I use a dataTable to store query results for binding from mysql.
Imports MySql.Data.MySqlClient Imports System.IO Public Class MysqlConSjC[code]......
This method does a select query. How would I write a method to insert/update/delete rows of the DataTable in the database?
I 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.
I am trying to update mysql table from a txt file using vb.net. So far I've found code here and there and been able to extract the data from the txt file, now my question is how to update mysql from the same dataset or xml file. Here is my code to populate the datagrid/dataset/xml file.what is the easiest way to update mysql assuming "Orden" is my primary key in mysql.
My system use to run on from a access database. Now I created the database on a MySQL server.I can connect to it using the connection wizzard, but I prefer using my old methods as shown below.[code]...
Does anyone know how to hardcode a connection and selection like I use to do with access, but only in MySQL?
It seems I've tried a million little variations of this and I keep getting the same error: "The SelectCommand property has not been initialized before calling 'Fill'
Imports System.Data Imports MySql.Data.MySqlClient Public Class clsDB
i have an old VB6 system that generates plain text files. When this old system writes "A" into the file, it writes (hex) "41". For an "ä" (a-umlaut, special gernam character), it writes (hex) "E4".
Now i have to process files like this in VB.Net. when i open such a file in the IDE, it displays correctly "ä" (But not always!). To see what i mean, please open a notepad and create a new file "ae.txt" with content: äöü. Now your file contains exactly 3 bytes: (hex) E4 F6 FC.
But when i write code like Dim strTest As String strTest = File.ReadAllText("ae.txt") Debug.Print(InStr(strTest, "ä"))
i get 0 - so i cannot find back the "ä" - what do i need to do, to find it? And 2) for compatibility reasons, i have also to be able to create such files. How to do that? Seems the different encoding types do not work as i think.
How do I make the default modelbinding handle Lists?
Let's say I have a ShoppingCart class, which has a ShoppingCartItem List:
Public Class ShoppingCart Public Property CouponCode As String Public Property Items As New List(Of ShoppingCartItem) End Class
[Code]....
However, when I submit the page, no values are picked up, not even the CouponCode field. The model object is empty. What gives?
Ultimately, my goal is to add/remove items clientside via javascript and then have the modelbinder pick up the changes automatically when the page is submitted.
Update: I was just missing the Property keyword from my model properties declarations. It's too late, and I got to get some sleep. :)
I'm trying to make a validation control that only allows (a-z, A-Z, and 0-9). Which control to i use in vb.net or do i have to write specific code to validate it?
I have made a program that makes and saves every possibility of characters under 7 characters (so far), and it takes about 10 mins to make one million possibilities... this is about 1800 possibilities per second (differering on different CPU's and RAM's)How can i make it more efficient, because i have made some basic calculations, and if i wanted 7 digits of every possible character combination, it will take about 7 billion possibilities... If i had 10 mins per million, that is a long time..
i am using Microsoft.XMLHTTP to pull information from a php page on my server, and they look exactly how they should look via firefox webbrowser, but via Microsoft.XMLHTTP utputted to a Listview the special characters aren't formmated correctly.eg, & #39; (had to put a space after & as it turns into a apostrophe on the site)
I don't have an example code, but recently figured out how to make a single sub handle the keydown event for multiple text boxes.What I would like to know is if it is simple enough to have the object name that is sending the event instead of "microsoft..text: 54654" (sender.ToString in a debug window) type of return. I don't know how to make use of that.
how to make a program that makes all the possible characters and numbers (A-Z & a-z & 0-9) from 5-20 characters, and put them in a list or something?
Someone may think this is bruteforce hacking, but I don't see why I should do that? If I want to find a password on 13 characters, it would be: 62^13 = 200028539268669788905472 possibilities... in other words... it would take forever!
im trying to make a auto mysql backup for my vb program. this code is working but i want to hide the console window so the user will never notice that something happened.
