Recent questions tagged vb.net

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vb.net - Evaluate mathematical expression from a string using VB

I want to calculate a arithmetic expression from a string using VB, any ideas ? As an example : "x+2" ... , I want to evaluate the expression See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Convert a string to a datetime

I am developing asp.net site using vb framework 3.5. Im having difficulties converting string data into Date I ... a Date from the string? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - How do I validate email address formatting with the .NET Framework?

I want a function to test that a string is formatted like an email address. What comes built-in with the .NET ... is there a more elegant way? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vb.net - Casting a boolean to an integer returns -1 for true?

I am working with some VB.NET code that seems to be casting a boolean value to an integer using CInt(myBoolean ... true instead of assigning -1? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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945 views

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vb.net - IsNothing versus Is Nothing

Does anyone here use VB.NET and have a strong preference for or against using IsNothing as opposed to Is Nothing (for ... is it OK to mix them? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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703 views

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vb.net - How to order list of files by file name with number?

I have a bunch of files in a directory that I am trying to get based off their type. Once I have them ... ToList() Would anyone have any ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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784 views

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vb.net - Syntax error in INSERT INTO statement for Access 2010

My INSERT statement apparently has a syntax error. Could someone please explain why that might be? Private Sub ... If End If End Sub See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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628 views

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vb.net - How to print hidden and visible content of a Container with ScrollBars

I have a scrollable Panel: some of its child Controls are hidden and other are visible. How can I print all ... Panel1.AutoSize = False End Sub See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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671 views

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vb.net - How to listen keyboard in background and fire keystrokes on demand?

I want to make a program in vb.NET 2008 which will listen keyboard in background, i.e. even though the application ... be done in vb.NET 2008? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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974 views

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vb.net - Deserializing JSON in Visual basic

Basically, I'm trying to parse the comments from a 4chan thread using the 4chan JSON API. https://github ... images As Integer End Class See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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731 views

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vb.net - Disable Image blending on a PictureBox

In my Windows Forms program, I have a PictureBox that contains a small image, 5 x 5 pixels. When this Bitmap is ... want This is not what I want See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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vb.net - Integer.Parse vs. CInt

Basically, I have been using both Integer.Parse and CInt in most of my daily programming tasks, but I'm a little ... .Parse and CInt in VB.NET? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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609 views

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vb.net - Associating file extensions with a program

I get how to do it, and i have been to http://www.codeproject.com/KB/vb/VBFileAssociation.aspx before. My ... and it confuses me lol... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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816 views

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vb.net - A first chance exception

I have a project that runs perfect under windows xp. Now I have tried to run it under Windows 7 and got there a ... ? Thanks a lot for help . See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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613 views

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vb.net - Is VB really case insensitive?

I'm not trying to start an argument here, but for whatever reason, it's typically stated that Visual Basic is ... what I could do with code? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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905 views

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vb.net - Casting DataTypes with DirectCast, CType, TryCast

Ever since I moved from VB6 to VB.NET somewhere in 2005, I've been using CType to do casting from one data ... what as well would be helpful. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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