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Software Development Network >> Visual Basic

Visual Basic

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Filtering Data from Access DB into windows Form
Desposing of a bitmap. "OBJECT REFERENCE NOT SET TO AN INSTANCE OF THE OBJECT."
help from comments in vb.net
From readonly
vb express beta 2 + threads
Error on References tab of project properties page.
Where is the Immediate Window in VB 2005?
Counting Letters in a string
TextBox array
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Answer Questions

  • danatcofo Public Const issue

    I converted a VB6 project to .NET. The 2 .bas files in the project became .vb of course. The mainline .vb module declares a group of variables as public. The procedures in the other module (.vb file) thinks these variables are undeclared when they are used. How do I properly declare these variables so they are globally accessible in the whole solution That doesn't seem to work. I'm currently declaring the vari ...Show All

  • AsgerM Dragging the form without using the title bar

    I have a problem on my splash screen, i set the borderstyle to none. How can I drag the form without having the title bar. I am using Visual Basic Express Thanks. Forgetting the eccentricity of the toolstrip for a minute, I think you are saying that we set a timer when the mouse enters the form area, at each timer event check the mouse to see it is still over the form, and if it is and the left mouse b ...Show All

  • stchong ListItem unavailable

    I am not able to use the ListItem Class in my VB 2003. When I try to declare an instance of ListItem as follows, it is not recognized. Dim objListItem As ListItem Is there something I am missing Error message is: "Type ListItem is not defined". In any case, when I am declaring, ListItem does not appear as one of the types. I tried to import the namespace "system.web.ui..." but the 'ui' bit does not exi ...Show All

  • Steven Fowler PropertyGrid problems

    Hi, I am currently using the propertygrid control to browse an object containing many properties of different types, some being structures which contain properties of their own. The first problem is that when I create a class inheriting from ExpandableTypeConverter, and use this class as the type converter for a property in my base class, I cannot find a way to unbold the display text using the DefaultValue attribute... The second (mor ...Show All

  • momark textBox -how to ?

    How to program a textBox so that it can only take Numeric value i.e. 0 to 9 and only ".", but no other chracter Hi, If you are talking about a windows application you can use the MaskedTextBox control and set a mask (See the following link for more info on the MaskedTextBox control.) http://msdn.microsoft.com/smartclient/understanding/windowsforms/2.0/features/maskedtextbox.aspx If it is a web form you will ...Show All

  • Manish Tandon Helpcursor on a ToolStripMenuItem

    Hi all, I have a ToolStripMenu in my application. I would like to change the cusor from default to help cursor when i click on a item in the ToolStripMenu. I was successfully able to change the cusor, but when moved the cursor on certain items, the cursor again changes to default. When moved away from such items, cursor changes to help cursor. I later found that the help cursor remains unchanged for items which has help for those items are en ...Show All

  • John Bowen Add connection wizard fails with Access database

    I have the RTM version installed. I am quite puzzled at this wizard. It works fine with SqlClient. But for Access databases, this wizard completely fails. In this wizard, I only have one option to do - setting the ConnectionString. I set it to Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\path\abc.mdb, which works fine in my code. But when I click OK, it complains: --------------------------- Microsoft Visual Studio --------------------------- ...Show All

  • JeanPaul B want to develop a software which should prompt the user for voice password

    I want to develop a software in VB6 which should prompt the user for voice password i mean user will have to logon the software by saying few self prestored word if the voice pattern will be same then and only then user can use the software. I think any multimedia control should be used for the purpose which matches the voice pattern and returns boolean value.Can you tell me what exactly control in VB6 i'll have to use and what code should be ...Show All

  • dark2025 Setting Decimal Place In A Textbox

    VB2005 Express Hi All How do I set the decimal place in a textbox as #.## also setting the datatype to numeric in the textbox properties. Good method, unfortunately for some reason the format type area is greyed out :( I have found the Masked Textbox tho which is doing what I need. You can try the following: Select your textbox. In the Property browser there is (Databindings) - (Advanced). In this Advanced field, you c ...Show All

  • LeafBug_2k2 vb.net console app loads uxtheme.dll

    Hi, I was testing out for how to make vb.net not load vb.dll at runtime and the code is like this: Imports System Module MainModule Sub Main() Dim s1 As String = "abc" Dim s2 As String = "abc" If String.Equals(s1,s2) Then Console.WriteLine("done") Console.ReadLine( ) End If End Sub End Module The above code was compiled as a console app. Strangely I ...Show All

  • Michael Blome - MSFT Replacing contents in a textbox using listboxes

    I have a textbox... I need ALL the contents from one listbox to be replaced by ALL the contents in the other listbox IN THE TEXTBOX I need them all replaced in one function, not one at a time. Thanks, Tanner Not sure but have you tried doing: ListBox2.Items = ListBox1.Items Hi, You can do something like this: Private Sub Button1_Click( ByVal sender As System. Object , ByVal e As S ...Show All

  • sandrop Finding length of structured data

    I am trying to convert a VB.6 program to VB .Net 2005. The program reads up fixed length records from a file and does stuff with them. The code to read the file and load up a combobox looks something like this (sorry about the double-spacing ... don't know how to avoid it): fPayees = FreeFile FileOpen(fPayees, gMasterPayeeDatabaseFile, OpenMode.Random, , , Len(PayeeData)) i = Len(HistoryItem) i = LOF(fPayees) j = Len(PayeeDa ...Show All

  • Tsprao DataGridView Navigation

    Hi, im sick of this error: Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function It happens, when i use (1 case) : MyGrid.currentcell = Mygrid.CurrentRow.Cells(0) it also happens when i try to remove a row, but not in all cases, how can i avoid this fu#~@n error . . . thanks in advance It's the same, i've tried that, with index, with names, with e.rowindex (when possible), ...Show All

  • Sterling Smith How secure is a ClickOnce app from prying eyes?

    I've just started reading up on ClickOnce deployment and it seems like a good option for applications with a straightforward installation.  The question that springs to mind for me is the security of the application.  I don't mean is the system being installed to going to be secure from the application doing Bad Things, but is my application going to be secure from the user trying to reverse-engineer it. I know that ClickOnce ...Show All

  • Thivya Communicating From DLL to .EXE that Created DLL Instance

    VB 2003 (soon to upgrade to VB 2005) I am creating an instance of a DLL that contains a Windows form from a Windows .exe. I need to communicate back to the .exe when a selection is made within the DLL form. I cannot make the DLL form modal because the .exe form is displayed at the same time as the DLL form is and the .exe form also has selections that the user can make. I tried using the .exe form _Activated but I cannot get this to fire with ...Show All

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