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Score of -3
0 answers
130 views

Working with VB.NET in VS2022, on .NET 4.8. My app works fine using iText v9.7.0 in the VS IDE, however when testing either a debug or release build I am getting iText errors. I recently updated all ...
Score of -5
0 answers
119 views

I have a form with a ListView control. The same form has 3 buttons on it that I want to enable or disable depending on what is shown in the listview. I am attempting to do this to assist the user in ...
Score of 0
1 answer
147 views

I am using the following code to test merging PDF's, and get an error "Unknown PDFException" at the line "Using pdfWriter As New PdfWriter(outputFile)" I have the following Imports ...
Score of 1
0 answers
82 views

I am developing a screensaver using vb.net, wherein a transparent circle is moving around the screen on a black background. The executable is working fine, but when the file is renamed as .scr and ...
Score of 1
1 answer
95 views

Here is a simple version of how I add an event handler to a control's click or move events. What I cannot get my head around yet is whether this pattern will potentially cause a memory leak. The form ...
Score of 0
0 answers
153 views

I have an SQL query that left joins tableB to tableA as shown below: CN.Open() 'The view vTimeTest relates the Time to JobMaster and Employees grouped by JobMaster.Name, Time.QB, Employees.ID and Time....
Score of 1
1 answer
142 views

I need to relate two tables on four columns where one table is new and has no data (rows) yet. Here is the code I have so far where DS is the dataset containing the two tables, DA and DACom are the ...
Score of 3
1 answer
150 views

I've done a stack of research but not found any solutions, hope you can help: I have a PartnerTech CD7220 Customer Display that is connected via USB but the driver creates a virtual COM port. I have ...
Score of 0
3 answers
189 views

I have a form in VB.NET that contains a ListView control. I am using the ItemSelectionChanged event to display the number of items selected. I also have some other code that both: Selects items that ...
Score of 1
1 answer
94 views

I would need to obtain only the properties that are in the group "RegexAttributes" to compose the regular expression. The code I have now works because there are no other properties with the ...
Score of 0
1 answer
152 views

I have an environment with a desktop app on each user's computer that communicates to a web method in a web service on a server which then communicates with SQL Server on a separate server. The web ...
Score of 0
0 answers
179 views

I use a database table as the binding source for a DataGridView. The table consists of only two columns (essentially a key-value table). In the DataGridView, I can change the order of the rows using ...
Score of 0
2 answers
118 views

I have a ListViewGroup control like this: I need to add a checkbox for a specific item in the second column. The problem is that the click doesn't work, items can't be checked/unchecked (column 1 or ...
Score of 0
0 answers
105 views

I am doing a bulk insert from VB.NET to a PostGRE/npgsql server. It is fine with Text/String and with DateTime, but when I try to send a Decimal, it returns an error. "Bulk copy to database ...
Score of 0
1 answer
138 views

I'm trying to create a custom combobox control in vb.net that begaves like select2. Now the it works but when the form laods and even when the combobox gains focus, an invalid selection is fired. This ...

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