Questions tagged as 'vb.net'

Tagged questions
0
answers

VB.NET-MYSQL - how to call a report with a parameter (Crystal Report)

I have a query that when executing it loads the data perfectly according to a id , now, I need to generate a report that brings me that query (filtered with id ). After a lot of struggle with the odbc , I can a...
asked by 04.05.2018 / 18:53
0
answers

MYSQL - UPDATE to two tables

hi friends (as) along with greeting them came to ask for your guidance (again), I have 2 tables that have a field in common: id_estado. What I have to do is update this field in both tables simultaneously, since this id then shows the field in a...
asked by 29.04.2018 / 22:01
1
answer

How to encrypt and decrypt a file with AES-256 on vb.net?

I am developing a small software that is capable of encrypting files, investigating a bit I found recommendations to use the AES-256 algorithm but the bad thing is that I still can not find any example of any function to encrypt what is a file w...
asked by 19.04.2018 / 21:39
0
answers

Modify Vb.Net Code of Animation

Hello. I was trying to convert the next following code to something like this: Class Animation Public Property Inicio as TimeSpan = Now.TimeOfDay Public Property Duration as TimeSpan = New TimeSpan(0,0,5) Public Property...
asked by 21.04.2018 / 03:22
0
answers

Unwanted behavior when editing a row in a grid

I have a asp:GridView paged with datatables . The point is that when I give it to edit, although I keep the page in which I am correctly, the row that I edit becomes the last one of the table in the last of the pages. It's obvious t...
asked by 18.04.2018 / 08:41
0
answers

VB.NET NOT RECOGNIZING CHARACTER FROM SQL

Good morning everyone, I'm trying to download teradata information with a select statement, the problem is that when I do it in vb through code some of the characters in the result in the recordset contain accents and are not recognized, for exa...
asked by 23.04.2018 / 16:25
0
answers

Exception from HRESULT: 0xFFFFFFF8 vb .net

When wanting to read from the database with vb.net it marks me a exception , apparently because I am bringing data NULL . I'm new to sql server, this is my code I hope you can help me. Save the data of a fingerprint in sql...
asked by 20.04.2018 / 19:25
1
answer

Error connecting crystal reports with server

Good I'm doing an application in visual basic 2017 that connects to SQL, the problem comes when I run the .exe on the client's machine and I want to generate a report Note that the program is connected to the database that is on the server perfe...
asked by 17.04.2018 / 01:58
0
answers

error in function insert (connexction must be valid and open)

Hello good afternoon everyone, I have a small problem in VB, I'm working with mysql, I have a button that resionarlo makes a search in a table, if that value does not exist, I wonder if I want to register, this is where the problem comes , since...
asked by 21.04.2018 / 21:42
1
answer

Send variable from Visual Basic to PHP

I am working on a project, where I "read" (with Visual Basic) the serial number of the hard disk of the user's PC, save it in a variable and send it to a php page. I have solved the problem by sending it by the Get method, however, I want to sen...
asked by 31.03.2018 / 17:19