lookup field control
Hi, I'm developing a windows application that updates item properties. what should i have to do if a document library have a lookup field or a people editor? what is the control to use? ...
winforms
How can this be done with (N)Hibernate?
I'm creating a windows forms application with NHibernate. It's an MDI application, so there is no limit to how many forms the user can have open at the same time (probably many). For most forms I want to have an "OK" and a "Cancel" button. Both close the form, but "OK" also saves the modified data to the DB. The forms can be pretty comp...
Screen information while Windows system is locked (.NET)
We have a nightly process that updates applications on a user's pc, and that requires bringing the application down and back up again (not looking to get into changing that process). The problem is that we are building a Windows AppBar on launch which requires a valid screen, and when the system is locked there isn't one in the Screen c...
Show yes/no in bool column of gridview bound to datasource in Winforms?
I have a gridview that is bound to a datasource (Windows Forms, VB.NET). One of columns is a property of type boolean, and I want to show "yes/no" in the column instead of 0/1 or "true/false". Is this possible? Can you edit displays of columns that are bound? ...
How to eliminate tearing from animation?
I'm running an animation in a WinForms app at 18.66666... frames per second (it's synced with music at 140 BPM, which is why the frame rate is weird). Each cel of the animation is pre-calculated, and the animation is driven by a high-resolution multimedia timer. The animation itself is smooth, but I am seeing a significant amount of "t...
Displaying list of objects as single column in a bound gridview (Winforms)?
I have a gridview that is bound to a datasource on a Windows Form (VB.NET). The grid displays a list of "certifications", and each "certification" can be associated with many languages. So in the grid, I'd like to display "languages" as a column, and display a comma delimited list of the language names for each "certification". In the ...
Custom date time picker for Windows Forms that is locked to GMT time
Using Visual Studio 2008, c#, .net 2.0. I have a Windows Forms client application that contains a scheduling UI section, currently this is housed only in the London office with the standard datetime picker control, the selected time is saved in a UK database (GMT) and a London based server aapplication processes the schedules. There ...
WinForms DateTimePicker Dialog?
I need to have a pop-up dialog like the Color Dialog or Save Dialog but for choosing a date from a calendar. The DateTimePicker is what I need, but I don't know how to launch this like a pop-up dialog in C#. ...
Which's better: MDI children, or modeless dialogs?
What's the pros and cons for each of them? ...
Is it good to use .settings for storing controls text data?
In my WinForms applications I often put the controls text data (form title, labels texts, button captions, etc.) into a .settings (feature automatically generated by Visual Studio - based on the ApplicationSettingsBase class). In particular, Add a form or a control. In Solution Explorer add a new string item into the application scope ...
How can maintain a SqlConnection open always
How can maintain a SqlConnection (or using another component) open (connected) always during the execution of my .Net app? I need this because my app needs to detect using this commnad exec sp_who2 how many instances of my app are connected to mydatabase, to restrict the access (license control). example A) my app executed from ...
When does log4net write or commit the log to file?
We use the log4net to log the winform application's event and error. Our customer want check the log file during the application running. But I can't find out when and how the log4net do the write(commit) operation. And how to meet the customer's requirement, except creating another logger by myself. Any help? Thanks. ...
how to change the color of the item when the checkbox is unchecked in c#.net?
i want to change the forecolor of the checked item when it is unchecked.. for checked item i have used item.checked but what to do if it is unchecked? im using winforms ...
How do you use data binding in C# winforms development ?
Recently I use data binding to speed up my development of C# winforms application. But I found that data binding is just useful when the control is Textbox or textare and text kind of controls. If things come to be radio button, image control or datagridview, it's hard for me to use data binding. For example, it's hard for me to...
DataGridView that always has one row selected
I'm using a DGV to show a list of images with text captions as a picklist. Their must always be a one and only one selection made in the list. I can't find a way to prevent the user from clearing the selection with a control-click on the selected row. Is there a property in the designer I'm missing that could do this? If I have to ...
Updating a status on a Winform in BackgroundWorker
I have a multi-step BackgroundWorker process. I use a marquee progress bar because several of these steps are run on a iSeries server so there isn't any good way to determine a percentage. What I am envisioning is a label with updates after every step. How would you recommend updating a label on a winform to reflect each step? Figured I...
Create normal zip file programmatically
Hi All I have seen many tutorials on how to compress a single file in c#. But I need to be able to create a normal *.zip file out of more than just one file. Is there anything in .NET that can do this? What would you suggest (baring in mind I'm under strict rules and cannot use other libraries) Thank you ...
Is there a way to allow a property of a user control to be modified only during design time?
I've looked into the DesignOnly attribute, but that doesn't seem to accomplish what I want*. Basically, I'm looking for some way to indicate that some property of a user control (let's say Text) can be modified during design time -- i.e., from the Windows Forms designer in VS (or presumably from any GUI designer that can be used to modi...
How to select a region in a Windows Forms PictureBox?
I want to get a part of picture in a PictureBox by allowing the user to select a rectangular region (similar to how it can be done in Photoshop with selection tool). How I can do this? ...
C#.NET How to access fields in user control dynamically?
Hi, I'm making a settings screen at the moment that will have a radiobutton group which will determine what controls are displayed. The different settings are contained within a UserControl. I am dynamically creating this UserControl like so: panel = new btSettings(); this.Controls.Add(panel); panel.Location = new Point(15, 49); Jus...