Questions tagged as 'vb.net'

Tagged questions
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Optimize a UPDATECOMMAND of mysql under vb.net!

Hello, how are you? I am working on a program under vb.net, under mysql, and when doing an extensive data update, it becomes very slow, around 2 - 15 minutes approximately. I clarify that this is not a DELETE COMMAND or INSERT COMMAND, that is,...
asked by 30.08.2017 / 19:00
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Perform instruction in vb according to the weight that is contained in a folder

Dear good afternoon, I hope someone can help me, I have a form which shows images in a PictureBox control that are in a certain path of my pc, and they are changed every so often as a SlideShow .. what I want to do with this and I can not think...
asked by 30.08.2017 / 16:39
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Add records in a reportviewer

I have a report in visual basic, what I need is that at the end of the page show me the total number of records that exist. I also need you to show me the total of each column (example: The Column reason has X amount)     
asked by 19.06.2017 / 04:14
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Show image from a route

I have a web form with an asp: img control in which I want to show an image, of which I only have the complete path of the file (including the file name) that is stored on the server (the path is saved in a table in the database). But I do not k...
asked by 07.06.2017 / 19:49
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Control event TimeOut in VB.NET

I am doing a query towards a webservice with VB.NET which will return me if the mail was successfully validated or if the email is invalid. When you send it to call it stays like this: Public Shared Function verificaremail(ByVal email As Str...
asked by 26.05.2017 / 16:32
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How can I fix the error: Parameter is not valid

I have an error that does not let me show the image saved in the database but I can not find how to fix it. It says that the error starts from: PictureBox1.BackgroundImage = (Image.FromStream(mStream)) My code is: Private Sub Mostrar...
asked by 19.07.2017 / 21:32
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The network path was not found

At the moment of giving click in the listbox where it shows me the IP address where the folder is located and see the comments that it has, it throws me the following:    IOException The network path was not found The addres...
asked by 04.07.2017 / 18:04
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Remove spaces when pasting into Excel from DataGridView

I want to paste the contents of a DataGridView in Excel. However, the content of a column, because each row has extra blanks at the end of the string, makes this column much longer than the content. Whereas I have this code to select what I w...
asked by 14.06.2017 / 14:20
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help with error with Visual Basic

I am doing a program in console more than anything for fun and I get the following error:    Property access must be assigned to the property or use its value. This is where I get the error:    character.arma (5) The class code is:...
asked by 19.05.2017 / 21:01
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Error connecting to an Azure SQL database from a Vb.NET Winforms application

I have an application made in visual studio 2015 with winforms and visual basic which works with a database on a SQL Server 2008 R2 server that is located within the same local network of clients. I currently want to migrate the database so t...
asked by 25.07.2017 / 21:03