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all groups > dotnet windows forms > september 2004 > threads for monday september 20

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Mdichild - first control leave event
Posted by Navneet at 9/20/2004 11:37:01 PM
Since I installed the new service pack for .net 1.0 i am experiencing a strange behaviour in my .net application. The leave event and the validating of the first control of an mdichild form is fired when the child form is loaded and it is not fired when the focus is lost from the control fi...more >>

Syntax for Accessing Controls in VB.Net
Posted by Saraswathi at 9/20/2004 8:53:01 PM
I have created a MainForm and included a Textbox control in the MainForm. Then i have added another new form using "Add Windows Form". I have used this syntax for accessing the textbox control in MainForm: MainForm.Textbox1.text = "Welcome". But it's throwing an exception. I have tried chan...more >>

DataRelations and DataGrids
Posted by aualias at 9/20/2004 8:43:52 PM
I have tables Junk and JunkLookup in a DataSet. Junk has an integer field junkType, which is a primary key into JunkLookup. Can I bind to Junk and use a DataRelation to display and update data in a DataGrid? Is it better to do a join in the SQL? Ideally, I would like to copy the database r...more >>

Form Inheritance: Specified Cast Is Not Valid?
Posted by James at 9/20/2004 6:19:37 PM
I have the above problem with an inherited form, which was working previously. I have a base form, frmBase which is inherited by my user forms. When I try to 'design' either frmBase or a user form, I get either the 'Specified Cast Is Not Valid' error, or the 'Ambiguous Match' error. Both...more >>

MsgBox problem
Posted by Jason at 9/20/2004 5:16:42 PM
This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C49F35.98E2F3F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I have a form which is used to add items (stock symbols) to a list. On = the form is a listbox, textbox, and ...more >>

Main Thread is lost after an event is fired
Posted by Robert Halstead at 9/20/2004 3:05:06 PM
Hey guys.. I'm have a network thread that handles send and recieve . Now when other classes need to use the network in my application in order to recieve back a response they assign a member function "NetworkRecv" to the event in the network class. My network thread, once it recieves somet...more >>

Receiving mouse events (WM_MOUSEMOVE, etc) outside of form
Posted by jason NO[at]SPAM mailinator.com at 9/20/2004 2:55:50 PM
I'm trying to implement some pretty basic behavior in c#/.net 1.1 Forms but can't seem to find all the requisite pieces. When a user clicks on the background of the form, I want the app to start receiving MouseMove updates -- whether the pointer is over the form or not (this being the crucial pa...more >>

Structure analogous to web.config in a windows application???
Posted by Novice at 9/20/2004 1:35:04 PM
Hey everyone - is there a file in a windows application that is analogous to the web.config in ASP.NET applications? Basically, I want to store a bunch of strings (that are NOT confidential) in a common configuration file and that I can easily access like the web.config file for ASP.NET app...more >>



newbie form question
Posted by Stephanie_Stowe NO[at]SPAM IDX.COM at 9/20/2004 11:20:18 AM
I have a form with a treeview on it. This form also has a user control. This user control has a panel with controls in it (a couple of textboxes and a ComponentOne TrueDB Grid). It is lovely. Except that when I resize the form, the panel does not present scrollbars. I have the panel's autosc...more >>

open form and wait for result
Posted by Gene Vangampelaere at 9/20/2004 10:22:37 AM
In my code I want to open a form to let the user enter his username/password. When he click on the OK button there will be some authentication and the I want to return TRUE or FALSE back to the form that initiated the login form. How can I do that? Try Dim frm As New Lo...more >>

How to show and hide griditems of propertygrid at runtime
Posted by jeff teng via .NET 247 at 9/20/2004 10:05:01 AM
(Type your message here) Is it possible to show and hide certain griditems of propertygrid at runtime. Say if a user choose certain value in a dropdown list of one griditem, the propertygrid shows more griditems which is hidden in the begining. Thanks -------------------------------- From: jeff t...more >>

comboBox invisible when using controls.add()
Posted by Richard Forss at 9/20/2004 9:19:03 AM
When I add a ComBox or DateTimePicker from an array to the Controls collection of a form, it does not display. What if any other settings/functions do I need to call in order for the ComboBox/DateTimePicker to display? How do I force the control to re-draw corectly? The same code using a ...more >>

Creating Setup Projects
Posted by Matt Tapia at 9/20/2004 8:27:06 AM
Can anyone point me to a good link to learn about how to create setup projects with VS. NET? ...more >>

Designer Attribute
Posted by Dotnetjunky at 9/20/2004 1:55:02 AM
Hi, In my Windows Forms custom control, I have a property which is of type Form. Hence, when the control is displayed in the Properties window of VS.NET, a plus (+) button is shown next to that property's row, indicating it is expandable. I don't want that to happen. Is there any Attribute ...more >>

Setting the "ClassName" of a .Net Form
Posted by Alex Maghen at 9/20/2004 1:55:02 AM
Hi. If I do a Win32 GetClassName() on the handle of one of my Form objects, I get something like "WindowsForms10.Window.8.app3". Is there any way for me to set, either at design-time or run-time, the ClassName of my form so that it's something more meaningful than this? Also, how does are t...more >>

GetSavedLicenseKey and SetSavedLicenseKey and differeing versions.
Posted by johndoe NO[at]SPAM driver.net at 9/20/2004 1:45:24 AM
We have developed a Licx License Provider. The problem is that whenever the build version of our Control changes Applications that were use the control fail because the GetSavedLicenseKey is retrieving a null value. From our understanding this is because the Signature is changing due to the Buil...more >>


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