Comments on: Accessing MySQL on VB.NET using MySQL Connector/Net, Part VII: Perform SQL Operations

By: shomi

shomi — Sun, 22 Jan 2012 20:21:14 +0000

hi,
I am trying to “select * from table where field = textbox1.text and where field2= textbox2.text” in vb.net2010 with mysql database, but I could not. Please help me.
Thanks all in advanced.

By: linglom

linglom — Mon, 19 Sep 2011 05:26:44 +0000

Hi Nevin,

In Catch block, you may add “Return Nothing” (after line 56 in the example above).

By: Nevin

Nevin — Sun, 18 Sep 2011 05:49:48 +0000

im having this problem.. could someone please help

Function ‘updateRecord’ doesn’t return a value on all code paths. Are you missing a ‘Return’ statement?

Greatly appreciated.. thanks ^_^

By: Pablomex

Pablomex — Mon, 30 May 2011 02:56:38 +0000

Great I did a few changes with listbox and combobox and it works very well

By: Mohit Soni

Mohit Soni — Tue, 01 Mar 2011 21:38:18 +0000

thanx for the help

By: divya

divya — Tue, 01 Mar 2011 05:16:06 +0000

pls help me with the code to retrive mysql data into a textbox created in vb.net

By: John

John — Mon, 03 Jan 2011 11:50:58 +0000

I am pleased you have the solution that you are happy with.
I would urge you to check that it cannot be broken by the use of SQL syntax characters, if it can then you have a major security risk to the site and potentially folk can get to your data, edit/delete it.
So please as a minimum –
Make sure that the text boxes can handle a ‘ and ; as these are potentially the biggest problens that I have found over the years of programming in asp and .net vb.
If it does break than as a minimum you need to prevent their entry in the text box by a validation control.
I go down the route of a custom function to clean these and others & I use validation controles in order to close all gaps.
Hope this helps you produce a truely secure page.

By: Peter

Peter — Thu, 30 Dec 2010 16:01:53 +0000

However, I got the solution
I prefer with insert in textboxes because is to insert on database, and is better in this form.
Now, I need do the same with selects for a complex query lol

By: John

John — Mon, 27 Dec 2010 22:24:37 +0000

PS.

Pututting the Close Connection in teh Finally ensures that the connections are always close, otherwise you get connection leakage and problems ensue.

Remember, if you Open the connection Manually you MUST close it

By: John

John — Mon, 27 Dec 2010 22:18:34 +0000

You get the idea