I have datatable and there two column which is type of string and I want to make addition of that two columns data for another column how can I do that ? My column name contains special character and I have used "[" "]" to escaping special character and my columns are type of decimal I am doing TableExtractedFromFile.Columns[TOT BRO...
Hi all, I have a list of devices that I need to filter on according to options selected by the user. One such option is cooling: when the user selects cooling only the devices with cooling are shown. If cooling is not selected then all devices (with or without cooling) are shown. I wonder what kind of control I best use for this. My f...
hi, I've got problem. I'm using windows.forms ListView to show some data and I need to make two lines in one row. I've found solution to make row higher by adding ImageList with specified height and then I add Environment.NewLine to my text. It works in Vista and 7 but in XP instead of new line there are shown squares. I've been trying t...
I have created a Custom Hosted Control using ToolStripControlHost and put it in a ToolStrip. Everything is working as expected. But my custom control does not look like other items in ToolStrip. How to make my custom control take the look and feel from ToolStripRenderer? or How to make it look like other items in ToolStrip? ...
How can I make my own Internet Explorer sidebar (not toolbar) just like Google Sidewiki, which will also interact with my browser (only IE). Any example? ...
Hello, I have got a problem. I have windows forms application with dynamic generated layout, but i have a problem in performance. In this form i use DataBinding from .NET 4.0 and databinding after setup works fine, but he binding setup time for ONE control blocking my application on approx 0.7 second. I have some controls and time of bi...
Hi, I am new to multithreading (and also to C#) so I hope this is not obvious: In my Form (WinForms application, .NET 2.0) I subscribed to an event that is raised by another object, and on handling this event I wish to change several Controls on my Form. As this event is raised in another thread than the main (UI) thread I want to mars...
I'm having problems with the redirected output from a console application being presented in a Winforms textbox in real-time. The messages are being produced line by line however as soon as interaction with the Form is called for, nothing appears to be displayed. Following the many examples on both Stackoverflow and other forums, I can...
I am trying to get a very simple autosizing layout on a winform (C# .NET). I've tried TableLayoutPanels and FlowLayoutPanels but nothing works. I have a usercontrol which is a container for other usercontrols which are created at runtime - I've called it StackPanel as I want it to list the child controls vertically. I've tried this usin...
I want to add culture to window application so that it can be used globally. For this I want to use Only one Resource File. Right now what I do is adds control manually to that file and reads them at page load. I want this thing to become automated. How should I proceed ...
I have a grid and when a row is double clicked a form is loaded. However a lot of data must be loaded, so I'd like to display a simple form with the text 'loading, please wait..'. And when all loading is finished, the form must disappear. This is what I have right now, but it doesn't work: Code that invokes the form with lots of data:...
I'm creating a WinForms control in C# (using VS2008, .net 3.5) which allows text input. I've imported the necessary Win32 API functions from User32.dll for displaying the normal Windows caret and these are all working fine, but it's not displaying exactly how I'd like it. Text is displayed on the control with a blank border and I use Gr...
In my winform app i would like one special button to run a test everytime i press it. There are dozens of controls so implementing it in each one takes too much time. Is there a way i can set a hotkey so no matter what i am doing in the app i can press the key and it will fire off my event? ...
I'm using a foreach loop to populate each row in a DataGridView with a string. I need to search the DataGridView to make sure that I don't add a string that is already there. What is the best way to do this? Here is my code so far: foreach (String file in openFileDialog.FileNames) { // to...
Hey all, I have a problem like this, I have two Winforms, f1 and f2. f1 will start a loop on button click, this loop checks a condition and decide to call the other form which is f2 or not. The problem is, the loop may call f2 many times, so each time the other form f2 will be called the first form f1 should pause its execution. So,...
I would like to have a form in which the controls on the form are fully visible but the form itself is invisible. If I change the form's Opacity, this makes both the form and the controls on it semi-transparent, so this doesn't work. I can't do this by setting the form's TransparencyKey, since I have a PictureBox on the form. If the i...
I'm creating a lot of custom controls and adding them to a FlowLayoutPanel. There is also a ContextMenuStrip created and populated at design time. Every time a control is added to the panel it has its ContextMenuStrip property assigned to this menu, so that all controls "share" the same menu. But I noticed when the controls are removed...
I need a treeview with the following features: ability to drag and drop nodes inside the treeview there are buttons on the top, that allow to move items up and down. editable node text Is there any implementation of this available? If not all, Is there an implementation of feature 1 available? ...
Hi, i have simple question may be someone asked it before me but i could not find it.Let say i have datatable that has some data from the database and i want to bind it to a combobox i use standart code like this comboBox1.BeginUpdate( ); comboBox1.ValueMember = "id"; comboBox1.DisplayMember = "name"; comboBox1.DataSource = dt; com...
Hi All I was wondering if anyone could help me out (not with code, although that would be appreciated), with the logic behind checking and retrieving messages from a POP3 mail server. I.e. Establish connection Validate credentials Enumerate message list Check each message to see if it's "new" Download "new" message(s). Would this be...