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• Asynch operation in WinForm app

  - by TooFat

  I have a WinForms app. that when a button is clicked retrieves a bunch of data from database formats it and displays it to the end user. The operation can take 10 - 30 seconds. I would like to display a message to the user in a Dialog just saying "Be patient the operation is running" while the operation is running and then close when the data is…

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• Microsoft Visual Studio License

  - by Germstorm

  I developed a small winforms application for myself in Microsoft Visual Studio 2008 Professional Edition at my workplace, the Visual Studio is licensed to the firm I work at. If I want to sell that application, what are my license options? EDIT: The issue here is not my relationship with my employer (the code was written after hours, we have an…

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• Combobox select item in dropdown list C#

  - by Willem T

  I have an combobox poppulated with items from a database table. When I change the text i repopulate the combobox with items from the database table. But when I enter text and the list with suggestions opens no item in de list is selected. And i want a item to be selected so when you press enter that it becomes the selected item. This is a…

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• User Drawn Controls: the MSN chat window

  - by Tommy

  I'm wondering about the famous MSN chat clients conversation windows! I'm sure there must be alot of different aspects but I'd like to focus on those little sliding panes. For instance where the pictures of the people in the conversation is displayed. When you click the collapse button the pictures dissapear and the panel gracefully slides…

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• Multiple fields from LINQ to Text Box

  - by Chuki2

  how can I pass value from selected field (LINQ) to textbox in winforms? If single fields, I just do like this var result = from row in dtValueBranch.AsEnumerable() where row.Field<int>("branchID") == idBranch select row.Field<string>("branchName"); StringBuilder sb…

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• Image animation stops on minimizing and restoring

  - by lc

  I have a .NET WinForms application with an animated GIF in a PictureBox. It's a loading animation, shown while a BackgroundWorker does some processing in another thread. I load the image by setting the Image property and it animates on its own. All is fine until I minimize and restore the application. At which point, the image stops…

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• C# - Erase all property values from a class?

  - by John M

  In a C# Winforms (3.5) application I have added a class that contains many properties (get/set) used to stored values from a 12 form long process. After form 12 I would like wipe out all the property values in the storing class so that the next user won't accidentally record values when starting the process at form 1. Is it…

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• Automatic form generation software

  - by Jonathan

  Hi! I'm using winforms. I spend a lot of time drawing forms (maybe not a lot, but it is a boring task). To sum up... I want to develop a simple aplication that connect to a sql server database, let the user to select a table, and put the controls in a form for me (generate the designer code), based on the tipe of each…

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• C# Multi threading- Move objects between threads

  - by Grant

  Hi, i am working with a winforms control that is both a GUI element and also does some internal processing that has not been exposed to the developer. When this component is instantiated it may take between 5 and 15 seconds to become ready so what i want to do is put it on another thread and when its done bring it back…

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• How should I display invalid options?

  - by mafutrct

  I've got a WinForms client-server app that displays various offers in a list. Every user (client) has a "rating". An offer consists of various data including a minimum and maximum rating. If a user's rating does not fall in that interval, he should not be able to take the offer. Of course I could just perform some…

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• UI to allow 700+ multiple choices

  - by Refracted Paladin

  In my desktop .NET application I have written(for internal use) where I need to allow my users to apply diagnosis's to a Member Plan. There are currently 700 in the system and growing. I need to allow them to add multiple diapnosis's at once. I currently am allowing this through a combo check list box. This…

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• How to bring Webserive text into a Winform aplication

  - by CogentP

  I am working a Winform Application that needs to access a webservice to get some basic information. The webservice exists, and the following is a link that brings text. Which basically is the customer name in Json format. http://globalbox.com.py/api/getUSER.php?gb=3217 So, my point, i need to be able to read…

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• Drawing problem does ShowWindow(hWnd, SW_HIDE) automatically invalidate rectangles?

  - by wk1989

  Hello, I'm running into a problem where, I have a Window that contains a child window. The child window contains another child window where a video is playing using Windows Media Player. Whenever I do call ShowWindow (hWnd, SW_HIDE) on the parent Window and paint over the entire surface, the region occupied by…

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• SQLite issues, escaping certain characters...

  - by CODe

  I'm working on my first database application. It is a WinForms application written in C# using a SQLite database. I've come across some problems, when a apostrophe is used, my SQLite query fails. Here is the structure of my queries. string SQL = "UPDATE SUBCONTRACTOR SET JobSite = NULL WHERE JobSite = '" +…

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• Change default font of controls in winforms

  - by phenevo

  Hi, Is there any way to change default font of controls in winforms. I must change font in about hundred font in recent project and it's coming next project with other fonts and I wanna at start setting properly fonts.

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• WPF theme that looks like Windows XP/WinForms

  - by Jonathan Allen

  I'm looking for a WPF theme that looks like Windows XP/WinForms. Basically I want all the WPF goodness, but without my business analyst freaking out because the colors look different. (Pity too, I really like the themes I found on CodePlex.)

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• sourceoffsite - winforms components used

  - by beyondhtml

  just downloaded SourceOffsite trial version and was impressed by the new winforms UI. i am curious which (third-party) components were used for ribbon/docking etc. If you know, info would be appreciated ;)

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• Web Services Primer for a WinForms Developer?

  - by Unicorns

  I've been writing client/server applications with Winforms for about six years now, but I have yet to venture into the web space (neither ASP.NET nor web services). Given the direction that the job market has been heading for some time and the fact that I have a basic curiosity, I'd like to get involved with…

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• winforms - event life cycle

  - by BhejaFry

  Hi folks, just like there is page life cycle in web applications, what are the event life cycle for winforms especially between form and usercontros? TIA

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• Group by in Winforms/webforms DataGrid

  - by Kumar

  I'd like to implement the group by features for the default grid as it's available for the commercial grid like devexpress/infragistics et al, if you want a sample, see the 2nd image on http://www.devexpress.com/Products/NET/Controls/WinForms/Grid/dataoperations.xml I'd think there's some pattern or better…

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• Visual Studio 2010 Crashes when Creating or Editing a Report (.rdlc) with the Report Designer

  - by ondesertverge

  This is an issue I had with VS 2010 RC and was hoping would be solved with the first official release. Sadly it wasn't. What I have is a number of reports originally created with VS 2008. When opening any of these for editing in VS 2010's Report Designer VS hangs for about two minutes and then shuts down.…

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• C#: How to force "calling" a method from the main thread by signaling in some way from another thread

  - by Fire-Dragon-DoL

  Sorry for long title, I don't know even the way on how to express the question I'm using a library which run a callback from a different context from the main thread (is a C Library), I created the callback in C# and when gets called I would like to just raise an event. However because I don't know what…

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• FileDialog DoubleClick Behavior

  - by Shaun Hamman

  While developing a WinForms application, I came across what I believe is a bug in the OpenFileDialog and SaveFileDialog controls. A Google search turned up a single other person who noticed the same issue, but neither a solution nor a workaround was provided. You can view this thread at:…

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• AccessViolationException from a combo: Attempted to read or write protected memory

  - by Sparky

  Users are occassionally getting the above error when using our application (VB.Net, Winforms, using v2 of the framework). I'm not able to reproduce it. The callstack is as follows: : System.AccessViolationException: Attempted to read or write protected memory. This is often an…

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• datagridview apply cellstyle to cells

  - by SchlaWiener

  I used this example to create a DateTime column for a DataGridView in my winforms app. http://msdn.microsoft.com/en-us/library/7tas5c80.aspx I can see the new column in the Windows Forms Designer and add it to an existing DataGridView. However, I want to be able to change the…

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