Questions tagged as 'vb.net'

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Execute Stored Procedure using Mysql and Visual

I am developing a system in visual basic and using Mysql database engine Currently I make inquiries from visual basic, but I want to change that for stored procedure, but the problem I have is that calling it from the visual application do...
asked by 12.03.2018 / 08:36
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PARAMETER TABLE IN A POSTGRESQL FUNCTION

I am trying to send a table as a parameter in a postgresql function, and in visual basic I get the following error:    "There is no assignment of object type System.Data.DataTable to a native type of a known managed provider." this is the...
asked by 01.03.2018 / 22:00
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Upload file from Visual Basic .Net and PHP

I want to upload a local file to a folder on a website. I am using a application in Windows Forms , with Microsoft VS Community 2017. Using Network.UploadFile () basically indicates the path of the local file and the address of the script tha...
asked by 23.02.2018 / 23:40
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create new table from another one in the database in vb

I have created tables in my database, which are displayed in a datagridview individually, but by modifying one of them, I want to save as a new table within the database , thanks by adepntado     
asked by 23.02.2018 / 21:30
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how to export to an excel format on vb.net?

Hi, You can help me to export a report of crystal reports to an excel format in data only ... I already managed to export it to a pdf format and if I do the function but when I change the output parameters for export to Excel marks me error. I s...
asked by 02.03.2018 / 16:51
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Improve the performance of a collection with multiple records

I have the following code: For Each Subitem In lstGastoResumen_Area Dim MesRealSub Dim MesPPTOSub MesRealSub = Aggregate y In lstGastoResumen Where y.Area = Subitem And y.Anio = Anio1 Into Sum(y.FebRealSoles) MesPPTOSub = Aggr...
asked by 22.02.2018 / 15:38
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Insert an image to a marker in a word template from MS Visual Basic?

Cordial greeting colleagues, it turns out that I have a form, where one of its fields allows you to attach an image in a picture box by means of a button called load, that image I need to insert it into a marker that I have in a word template. T...
asked by 22.02.2018 / 17:33
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The MySqlConnection type is not defined

Imports MySql.Data.MySqlClient Public Class Form1 Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load Try Dim conexion As New MySqlConnectionStringBuilder() conexion.Server = "localho...
asked by 22.02.2018 / 21:06
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How to disable items and enable them from a checklistbox according to MS Visual Basic conditions?

Cordial greeting colleagues, It turns out that I have a form with 2 checklistbox that are filled by means of a query to a database that I have, a checklistbox is for activities to be done and the other for workers (engineers). What I am trying t...
asked by 15.02.2018 / 14:56
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How to know column pressed in a GridView in ASP?

I have a GridView in asp from which I would like to know the name or number of the column that you clicked. I'm not interested in the row since I already manage it, I want you to click on the header of a column and from there shoot a function to...
asked by 08.02.2018 / 19:47