Recent questions tagged VB.NET

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vb.net - No Transparency on Visual Basic PictureBox

I have some picture boxes on Visual Basic Express 2010, and these picture have alpha channels on them, but ... object that is underneath it. 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 - Exception on importing Blob image into ms Access report

In an Access 2013 Report I connect to an Oracle DB View via a Linked Table. One View field is of ... find anything about this specific issue. 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 SuggestAppend a ComboBox containing a string

Goal I'd like to have my ComboBox items suggest and append its items when something is contained in them, ... be searching for something else? 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 - Storing an object that implements multiple interfaces and derives from a certain base (.net)

In .net, it's possible to use generics so that a function can accept arguments which support one or more ... with present compilers, though. 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 - .NET WinForms ComboBox, identical items, and the SelectedIndexChanged event

It seems like when you have a WinForms .NET application, and a ComboBox (set to the "DropDown" style), and ... it by selecting something else!) 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 - Removing all event handlers in one go

Problem: I have a document class which contains a list of objects. These objects raise ... SolutionExpired, AddressOf DefObj_SolutionExpired 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 - Is it possible to iterate over two IEnumerable objects at the same time?

If I have a List(Of x) and a List(Of y) is it possible to iterate over both at the same time? ... joining the lists on there common id. 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 - Deserializing json array into .net class

I'm having problems deserializing some json data, getting InvalidCastExceptions and the like. Can anyone point me in ... , List(Of jsTextArea)) 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 column order does not seem to work

I have a DataGridView bound to a list of business objects: Dim template As New IncidentTemplate Dim temps As List(Of ... s driving me crazy.... 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 - Data Grid View...programmatically setting the select row index doesn't set the CurrentRow.Index to the same?

This code CurrentSelectedRow = Me.dgvPreviouslyCut.CurrentRow.Index stores the current selected row that has been clicked by ... to 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 - How does a program ask for administrator privileges?

I am developing an application using vb.net. For performing some tasks the application needs administrator ... arbitrary user account? 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 avoid <string xmlns="http://schemas.microsoft.com/2003/10/Serialization/">?

I have built a very simple web service using the VB.NET "WCF Rest Service Application" project template ( ... serialization of my string answer? 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 - Multiple Variables

Is there a way to give a value to multiple variables (integers in this case), instead of all at once? For ... How can I do this? 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 - Char.IsSymbol("*") is false

I'm working on a password validation routine, and am surprised to find that VB does not consider '*' to ... all standard US special characters? 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 - "make single instance application" what does this do?

in vb 2008 express this option is available under application properties. does anyone know what is its function? does ... at the same time? 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 - 'var_name'is not declared. It may be inaccessible due to its protection level.' in debug mode

This behavior is in a vb.net web application solution with multiple class library projects referenced by the web ... is no longer appearing. 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 - What does a percentage symbol mean as part of a variable name?

I'm just looking at some VB.NET code and I came across this: Dim var% Later var is set to 0. What's the ... )? (Google and SO search failed me) 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 - dragging picturebox inside winform on runtime

i need to be able to drag and drop my picturebox with an image in it around my winform in vb.net. 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 - Accessing an MTP/WPD device in Visual Basic .NET

Are there any libraries available for VB.net which will enable me to easily access a MTP device? I'd like to be ... who wants to use VB.net? 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 - ASP.NET - Accessing web page twice from client

What happens if one user tries to access an ASP.NET page twice before the first page is returned to the client ... that does not use threading. 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 - Rounded Rectangle Not Accurate

Every sample code I've ever found for drawing rounded rectangles using GDI+ goes something like this (lifted and ... this in good old winforms? 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 send email

I was wondering how I could send an email from within a vb application? Can any one assist in where to begin? 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 have an invisible start up form?

I have an application that is a part of a solution of projects. In this project I would like for it to start up ... out? I am using VB.NET. 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 use settings in Visual C#

I have been a VB.net developer for a long time and changed recently to C#. When I was using VB.net, to call ... what can I do to call settings?? 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 - Stripping all html tags with Html Agility Pack

I have a html string like this: <html><body><p>foo <a href='http://www.example.com'>bar< ... Return htmldoc.DocumentNode.InnerText 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 specify long string literals in Visual Basic .NET?

Is there a way to conveniently store long string literal in Visual Basic source? I'm composing a console ... for good tips in advance! 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 get Distinct Values from List(Of T) using Linq

I have a List(Of Hardware) - the List is called HWModels Class Hardware has the following Properties: ModelName ... members within the list? 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 remove all traces of a ClickOnce application from a customer's computer?

I have a ClickOnce application that about 120 customers are using. This week, I found out two customers ... resemblance of our application. See Question&Answers more detail:os...

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

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