Recent questions tagged vb.net

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vb.net - Visual Studio VB pretty listing settings

Does anyone know how to stop Visual Studio VB.NET editor from changing my beautiful scientific notation numbers into ... be looking at 1e-16 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - How can I avoid Outlook's security warning when sending email programmatically?

I send email through Outlook using VB.Net 2005; this is working fine. At the same time, however, I receive the ... there any way to avoid this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Why cannot convert null to type parameter T in c#?

I'm converting a bunch of code from VB to C# and I'm running in to an issue with a method. This VB method ... lot of code. What am I missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Accurate Windows timer? System.Timers.Timer() is limited to 15 msec

I need an accurate timer to interface a Windows application to a piece of lab equipment. I used System.Timers. ... likely others. Thanks again. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Slow MSAccess disk writing

I'm trying to write a VB.Net program that saves 1-2 million 5-field records (plus an indexed ID) to an ... change to get this to work better? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Handling all textbox event in one Handler

I do know how to handle event of textboxes in my form. But want to make this code shorter because I will 30 ... a way to shorten the handler? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - detect if NumLock is OFF and turn it always back ON

What is a method to detect if NumLock is OFF and how to turn it always back ON automatically when my VB APP is ... and behave as numlock is on) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - How to duplex and staple a print job

I want to print from Excel to Postscript then print to a printer. How can I specify duplex and ... PSPrinterName) Return svInputPS End Function See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - How to freeze the header row in an Excel spreadsheet exported from ASP.NET

I'm exporting an ASP.NET gridview to Excel using the following function. The formatting is working really well, ... sb.ToString() End Function See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Get the name of the button that triggered the event

I have an event handler that handles the click event of multiple buttons: Private Sub primeHandler(ByVal sender As ... way to do that? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net auto instantiation (forms)

In VB.Net you can show a form without crete an object reference before... vb.net do it to you, but, that ... Is there any way to disable this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Resize and Compress image to byte array without saving the new image

The image is first resized, compressed and then saved on disk as "Preview.jpg" and then it is opened ... () Return imgByteArray End Function See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Color a specific word in every line of text in a RichTextBox

I want to color every same word inside a RichTextBox. I can do it for one line but not on multiple lines. E ... the others are remain the same. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Categorize Listbox items by Color

So I'm trying to make a listbox with 2 buttons. Listbox is supposed to display files from a specific folder (I ... " or opened in VS 2013. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Listview - Multi column - Change selection color for the whole row

I would like to change selection color in a ListView, from a default (blue). I can not adapt any code that ... have full row selection? Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Format numbers to roman numerals?

Is it possible to use Format function to display integers in roman numerals? For Counter As Integer = 1 To 10 Literal1 ... (Counter, "???") Next See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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910 views

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vb.net - ExecuteNonQuery: Connection property has not been initialized VB

Getting an error here not sure why its not opening the connection. Hoping someone can help me. Protected Sub ... MsgBox(ex.Message) End Try See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Deserialize JSON with varying element names

I'm struggling deserializing an json into an vb.net object with newtonsoft. The problem is, that the element ... your help! Best regards Martin See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Drawing and scaling rectangle using a ratio

I have a program where I can, with the mouse, draw a rectangle in any of four directions. These rectangles are ... the code) for all quadrants. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - how to make a deep copy of my list

Dim i = 2 Do While True i += 1 If IsDBNull(TmDataSet.T.Rows(0)(i)) = True Then Exit Do Dim new_t As New ... clone method I didn't get it at all See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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874 views

1 answer

vb.net - VBA UDF returning #VALUE!

So I have a pretty simple UDF written in visual basic for use in excel. It calculates your approx. taxes. ... i incomeTaxes = Tax End Function See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Preserving NULL values in a Double Variable

I'm working on a vb.net application which imports from an Excel spreadsheet. If rdr.HasRows Then Do While ... do the conditional DBNull insert. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Unique Combination of Set

I'm trying to write vb.net code to return unique combinations for set My set contains 3 different elements. I've found ... 1) = 3+6+6 = 15 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Datagridview multi line textbox when ctrl+enter press

I'm trying to add some specific behavior to a datagridview control (if you can put it like that). I would like ... ' Some magic here. End Sub See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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858 views

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vb.net - When do I need to use a `New` keyword when creating an array?

I was just looking at the help page for arrays in VB and apparently all of these are acceptable syntax for ... is never even being created See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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825 views

1 answer

vb.net - .NET WinForm Memory Consumption

I've been profiling a WinForm's application using ".NET Memory Profiler". I can't quite seem to understand how my ... what it might be? Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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826 views

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vb.net - Confusion with Root Namespace in Asp.net web project

I have an VS2008 solution with 2 projects, WebUI and Domain; WebUI references domain The Root Namespace in ... principle I am misunderstanding?? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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967 views

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vb.net - Find all directories in directory and return only name

I want to find all directories in one directory in vb.net. I found one script: For Each Dir As String In ... to return only name of path. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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