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all groups > vb.net controls > september 2004 > threads for september 1 - 7, 2004

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Overwhelmed by the DataGrid
Posted by Rob Richardson at 9/6/2004 5:47:41 PM
Greetings! I am trying to figure out how to work with the DataGrid control. I am able to bind it to a SQL Server view by loading the view into a DataTable and setting the grid's DataSource property to that DataTable. The grid shows the contents of the view and sorts them very nicely. But wh...more >>

LimitToList in VB.Net
Posted by Atley at 9/3/2004 12:08:37 PM
is there an equivilant to the Limit To List property in VB.net 2003? I can't seem to find it, but I do not want users to be able to type in my comboboxes and try to choose something that isn't in the list. any help would be appreciated. ...more >>

Which control has focus
Posted by starbuck at 9/3/2004 9:44:47 AM
Hi I know there a way of detecting which control has focus on a form in vb.net but I cannot remember it. Can someone jog my memory please. Thanks --- Outgoing mail is certified Virus Free, so am I. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.745 / Virus Da...more >>

The variable is either undeclared or was never assigned in VB.NET
Posted by Viet at 9/3/2004 8:45:35 AM
I am using MS Visual Studio 2002 and I am experiencing this issue with one of my VB.NET applications. This is a complex form and I don't understand why this error message pops up. The program compiles fine but when I try to run it, I get this error message. The strange problem is that on another ...more >>

Why Does This Not Work - DirectCast
Posted by Paul Timmerman at 9/3/2004 8:33:39 AM
Dim CurrentTabPage As Control CurrentTabPage = DirectCast("tcontrol.SelectedTab.Name", Control) MessageBox.Show(CurrentTabPage.Name) I get a SPECIFIED CAST IS NOT VALID Simply described: I want to determine the name of the tabpage that I am on (it is created dynamically) and then ...more >>

What seems like a simple thing...
Posted by Geoff at 9/2/2004 3:00:54 PM
Hi, all, I have a VB .NET (VS 2003) application that has a dropdown list or dropdown combo with checkboxes as a "3rd party control" linked to a ComponentOne TrueDBGrid cell button click event. When the user clicks on the grid cell, a list (either standard list or check combo) drops down wit...more >>

How do I check if printer exists ?
Posted by Dino Buljubasic at 9/1/2004 5:47:02 PM
I use in my code: ConstLeftMargin = PrintDocument1.PrinterSettings.DefaultPageSettings.PaperSize.height\40 to set left margin for my document. However, when printer is uninstalled,it crashes. How do I check if printer exists before accessing PrinterSettings object? Thank you...more >>

Interact With Dynamically Created Control
Posted by Paul Timmerman at 9/1/2004 4:37:04 PM
I am building an app in VB.NET. I have code that dynamically creates a textbox control and populates it based on some values in a dataset. The textbox is disabled upon creation. I am also creating a command button, that when clicked should enable the textbox. However, since I created ...more >>



Third-party controls
Posted by John Dann at 9/1/2004 11:41:18 AM
Is there a .Net newsgroup comparable to m.p.vb.3rdparty dealing with third-party (ie non-MS) controls, both commercial and shareware/freeware? Or would this be the place to ask about such controls? JGD...more >>

Limits on # of entries in a listbox control - .net
Posted by George Sze via .NET 247 at 9/1/2004 8:50:23 AM
I'm working with a COMM app that receives data from a serial= port=2E I display this data into a listbox control using VB =2Enet=2E= Hence, data is "flying" into the listbox for display=2E My= question: Is there a limit on the # of entries for a listbox= control? I believe the limit is ...more >>


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