all groups > dotnet windows forms > june 2008
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preferred way to handle form events
Posted by John A Grandy at 6/23/2008 12:30:52 PM
I'm new to WinForms.
What's the preferred way of implementing event handlers for a Form ?
Override the protected "OnEvent" methods ... ?
Write a custom handler and add to the event a new delegate initialized to
the handler ?
Thanks.
... more >>
Problem opening windows folder from code
Posted by Rick at 6/23/2008 9:47:44 AM
Can you help me figure out how i can open a windows folder from code?
I want a user to click a button to open a windows folder as you would when
you click on a folder in "My Computer".
Thanks for your help!
Rick.... more >>
accessing connection string in data access layer
Posted by Tirrell Cotton at 6/21/2008 9:08:57 PM
I've created a small n-tiered application similar to the one created in this
demo video:
http://windowsclient.net/learn/video.aspx?v=14625&CommentPosted=true#commentmessage
The application has all of it's data access code in a seperate class library
that uses strong typed datasets and tabl... more >>
clickonce with certificate
Posted by jakoande@hotmail.com at 6/21/2008 4:24:15 PM
Hi,
When I publish a winform app with clickonce my users get a "publisher
cannot by verified" due to a missing certificate. If I buy a code
signing certificate at verisign will this message "go away" and the
app install instantly, or will there pop another message up saying
something like "pu... more >>
Settings.Designer.cs deleted
Posted by John A Grandy at 6/20/2008 2:49:04 PM
My Properties\Settings.Designer.cs file someone got deleted.
Is there anything I can do short of creating a new project ?
Thanks.
... more >>
UserControl always shows controls at fixed position
Posted by Juan Dent at 6/19/2008 12:17:03 PM
Hi,
A user control is placed at different locations in a form, but this not
affect the location where the individual elements of the user control are
finally placed in the form's coordinates. This seems odd and counterintuitive
since moving the control at design time in the form should move... more >>
What is the width of the first column in a DataGridView?
Posted by Juan Dent at 6/19/2008 11:43:06 AM
Hi,
In a DataGridView, the first "column" (where you can click to select a whole
row for example) has a fixed width - I think. How can we find out the
current or fixed width and what are the units used?
--
Thanks in advance,
Juan Dent, M.Sc.... more >>
Thumbnails & Listviews
Posted by P.J.M. Beker at 6/18/2008 8:53:12 PM
Hi there,
I'm currently developing a program to manage my image collection. The main
form contains a llistview in which the location and filenames of these
images are displayed.
When switching the listview to Tile mode, I want to display the thumbnails
of these images. My image collectio... more >>
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Expression Blend
Posted by Ronny at 6/18/2008 2:48:13 PM
I saw in wpf books that Expression Blend is recommended to develop wpf
application. In the Expression suit there are some other products.
My question- in order to develop desktop application is there any need to
the other products and in what way?
Is it a must?
Is there some article that covers... more >>
Assembly missing in GAC after Publish?
Posted by Pieter at 6/17/2008 10:49:55 AM
Hi,
We're using ClickOnce alreaddy more than a year for a given applicaiton,
doing more than 50 publishes without any problem.
Yesterday we made a minor change to one of our components (let's say with
the name MyAssembly), and incremented it's version (AssemblyVersion: from
0.1.7.0 to 0.1.7... more >>
C# Winform invocation from Classic ASP page
Posted by amolppradhan@gmail.com at 6/16/2008 6:04:08 AM
Hi,
I have an appilcation which is using C# Winform and classic ASP.
Child form only migrated to C# from classic ASP.
Hence need to invoke C# winform (child form) from legacy classic ASP
form (parent form). Also return values from Child form (C# winform) to
Parent form (classic ASP).
H... more >>
No activity on a form...
Posted by Simon Verona at 6/14/2008 10:50:55 AM
What is the easiest way of tracking whether there has been any activity on a
form at all in a specific time ?
I want to have a form that automatically "timeouts" after a period of no
activity. I don't really want to have to go through every button, box and
catch every mouse-click etc. to k... more >>
Can anyone recommend a WPF-like control for WinForms?
Posted by rory.groves@gmail.com at 6/12/2008 9:22:34 AM
I am needing to develop animated effects in my WinForms application.
The trick is that the background of the control needs to be semi-
transparent or completely transparent.
- WPF through Interop does not allow this, it always shows a black
background.
- Silverlight will only run in the brows... more >>
Ativate Form
Posted by schneider at 6/11/2008 11:38:29 PM
Hello,
When a window is closed, what is the next window to get activated, and how
is that determined?
Thanks,
Schneider
... more >>
associating value with treenode in vb.net
Posted by Vinki at 6/11/2008 12:39:01 PM
hello everyone,
How can I associate a value with a tree node? I have this
TreeNode nodeFirstRecord
nodeFirstRecord = new TreeNode[dr["location"]]
How can I se the value of IndexId to the treeNode in order to retrieve the
value later
nodeFirstRecord.value = dr["indexId"], I want to d... more >>
funny look to tab with bottom alignment
Posted by a non e mouse
When a tab page is made with the tabs aligned at the bottom instead of
the
default top one gets a funny look and feel. The rounded parts of the
tabs
continues to be at the top and the square end is at the bottom. One
would
expect it to be inverted. (This is .NET 2.0 framework and I cannot
mov... more >>
Databinding problem - DisplayName empty
Posted by mcollier at 6/10/2008 6:10:06 PM
I'm having some trouble getting databinding to a ListBox to work
correctly. I think the collection I'm trying to bind against is a
little odd, so I'm wondering if that could be part of the problem.
Below is a sample of the databinding code.
AxisCollection axis = GetAxisCollection()
myListBox... more >>
Form created on BackGroundThread
Posted by Pieter at 6/10/2008 2:25:16 PM
Hi,
I have some generic module that handles exceptions. simply you call it like
this: "LogManager.ErrorMessage(ex)".
Worked great, until we now discovered that it isn't Thread-safe. What
actially happens is this: A Form is made, labels and buttons are made etc
with the exception-details,... more >>
deadlock when using waitOne in a STA thread
Posted by Daniel Cuculescu at 6/10/2008 11:31:45 AM
Hi,
I have the problem described bellow with the calls to WaitHandle.WaitOne
causing re-entrancy on main GUI thread (STA) of a .NET application and I
would like to find out:
- did anybody else run into the same problem?
- is it a known issue? is there a fix for it?
- is there a work... more >>
ProgressBar and Form loading
Posted by Thomas at 6/10/2008 10:28:53 AM
Hello,
I don't know if such question was already posted but I didn't find anything
through different posts.
I have the Main MDI window with a StatusBar. Inside my StatusBar there is a
ProgressBar. When I click on the menu in my MDI Parent, a child form is
loaded. I would like to know if ... more >>
Redirecting to ClickOnce application fails
Posted by Jürgen at 6/10/2008 9:34:17 AM
Hello,
We have implemented a few years ago a "zero touch" deployed smart client
application for .NET 1.1.
We ported now this application to .NET 2.0 and deploying it with ClickOnce.
Because we have still .NET 1.1 clients around, we made a small ASP.NET
startup application that checks... more >>
Checking whether or not checkbox on web page is checked
Posted by BobRoyAce at 6/9/2008 9:50:57 AM
Let's say that I use the following code to get a reference to a
checkbox on a web page in a WebBrowser control:
Dim oHtmlElement As HtmlElement
oHtmlElement =
WebBrowser1.Document.GetElementById("chkThrowInTheTowel")
How can I tell if the checkbox is checked or not? oHtmlElement.Checked... more >>
Restarting app
Posted by John at 6/8/2008 3:30:59 PM
Hi
Is there a way to restart a winform app in case of a serious error?
Thanks
Regards
... more >>
System.Collections
Posted by a_pess at 6/7/2008 12:09:24 AM
' i face the following problem while using different types of system
collection classes
while using Hashtables as shown in the example below, the week days
will be shown in combobox1 start with "Wed"
and will start with "Sat" while using Stack and other collections are
ok
I wonder if i miss s... more >>
can not log on after removing malware
Posted by jim1234 at 6/5/2008 6:58:00 AM
After running some malware removal software to remove registary enteries put
there by malware alarm 2008. my daughter can not log into her computer. she
gets a welcome screen with administrator on it and when she clicks on it it
does something then goes back to the screen.
also, where doe... more >>
Memory leak with TextBox?
Posted by Jeff at 6/4/2008 5:25:54 AM
I have a windows app which contains a readonly multi-line textbox.
This textbox is used to display "log" information as actions/events
occur within the application. The contents can eventually get to be
very large, as our app is often left to run overnight. We allow the
user to clear the conte... more >>
RichTextBox.RTF handle
Posted by Cricket at 6/4/2008 4:01:02 AM
Hello,
I have some problem with handling the RTF type string. I have an application
which must have a text box, can handle Pictures and formatting texts, etc. So
I have chosen the RichTextBox control and stored the RTF property as nvarchar
in my database.
It works fine, but now I have t... more >>
Find/Replace dialog box
Posted by Ramon de Klein at 6/4/2008 1:33:12 AM
I needed to use a Find/Replace dialog box in .NET and I wanted to use
the common dialog that is available in the Win32 API. It needed a lot
of marshalling and fiddling with window message. I have created a
class that hides all these things and posted it on my blog. Go to
http://blog.ramondeklein... more >>
WebBrowser - waiting for page to load
Posted by BobRoyAce at 6/3/2008 11:12:26 PM
I am attempting to use a WebBrowser on a Windows Form application, in
a situation where I am wanting to automate the following:
1) Click on all checkboxes on page
2) Click on link to go to new page
I have successfully coded the above two steps.
Now, what I want to do is do the above two s... more >>
How publish setup pkg that allows custom dir install
Posted by Cirene at 6/3/2008 8:17:45 PM
Created a VB.NET winform app using VS 2008. How do I allow the users, when
running setup.exe, to choose a directory to install it to, and whether it
should be installed to the program groups or not?
Thanks.
... more >>
VS 2005: webbrowser control displaying image from database
Posted by Chris at 6/3/2008 2:20:00 PM
Hi,
There is a webbrowser control in my app. I have also a ms sql database and
images are stored in.
I can display a html document in the webbrowser control. I also can read an
image from the database (I mean I have the image in memory as a byte array or
image object). Is it possible to disp... more >>
Getting a ComboBox to "pop open"
Posted by Greg Smith at 6/3/2008 9:02:59 AM
What instruction would get a ComboBox to Drop down and display the pick list
as it would if somebody had clicked it?
Any help is greatly appreciated.
... more >>
Generate and save csv-file from C#?
Posted by maria.elmvang@gmail.com at 6/3/2008 7:27:57 AM
Hi all,
I need my code to be able to generate and save an csv-file without
being prompted by a dialogue box, but I don't know if such a thing is
possible. I've found out how to generate the file without problems,
but I cannot seem to make it save the file to a predetermined
location. Is such ... more >> |
