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Score of -4
0 answers
90 views

I have a system architecture where my user's desktop program communicates with an API on a server, which then communicates with SQL Server on a different server. This is to limit the access to the SQL ...
Score of 3
1 answer
102 views

I am using MiniExcel to export data using this code: Using con As New SqlConnection(ConString) Dim com As New SqlCommand("Get_ExcelData", con) With {.CommandType = CommandType....
Score of 0
1 answer
104 views

My Visual Studio 2026 Winforms application on .NET 4.7.2 has a form that displays data from a parent table (Jobs) and three related child tables. Constraints are not created when the relationships are ...
Score of -3
0 answers
153 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 0
1 answer
152 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
88 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
103 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
182 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
148 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
160 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
201 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
95 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
163 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
185 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
125 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 ...

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