Having a problem getting a TreeView control to display node images. The code below works sometimes but fails to show any image at other times. private TreeNode AddNodeForCore(TreeNode root, Core c) { string key = GetImageKey(c); TreeNode t = root.Nodes.Add(c.Name, c.Name, key, key); t.Tag = c; return t; } Note that wh...
I have a problem where a Web Application needs to (after interaction from the user via Javascript) 1) open a Windows Forms Application 2) send a parameter to the app (e.g. an ID) Correspondingly, the Windows Forms Application should be able to 1) send parameters back to the Web Application (updating the URL is ok) 2) open th...
I followed google to this MSDN forum thread. The last answer was and I qoute : "Using threads? Don't" Does someone knows a walk around? As far as I can tell, I'm playing the cards well. I'm using BeginInvoke inorder to populate the data source inside the UI thread. More details : I've got a background thread that make queries to a S...
I know how to do custom drawing of a standalone Windows Forms ScrollBar because there are plenty of examples at places like codeproject.com. But how do you custom draw the scrollbars in controls you do not create yourself? For example a Panel can show scrollbars but how would I ensure that the scrollbars it shows are custom drawn? Or m...
I have a winforms application that presently ships with a chm file for context-sensitive help documentation (not API docs), created using MS HTML Help Workshop. I'd like to move to online documentation (don't have to ship it with the product, can update it easily, etc). What tools are recommended for this sort of thing, and what are the...
During a complicated update I might prefer to display all the changes at once. I know there is a method that allows me to do this, but I can't find it. Please help. ...
We are developing a .NET 2.0 winform application. The application needs to access Web Services. Yet, we are encountering issues with users behind proxies. Popular windows backup applications (think Mozy) are providing a moderately complex dialog window dedicated the proxy settings. Yet, re-implementing yet-another proxy handling logic a...
Has anyone been able to successfully unit test methods that are, by necessity, coupled to the System.Windows.Forms.Form class? I've recently been working on a C# winforms application, trying to build it with an MVC structure. This is difficult enough, given that the framework isn't really built with this in mind. However, it gets even...
Hi, I want to display tabular type data, but it will not be coming from a single datasource. I am currently using a label, but the alignment doesn't look that great. Any ideas? Again, the data is not being loaded from a datagrid or anything, each row is basically a label and a number e.g. Total Users: 10123 Total Logins: 234 What is...
Seems so basic, I can't believe I don't know this! I just need a scratch folder to dump some temporary files to. I don't care if it gets wiped out between usages or not, and I don't think I should have to go through the hassle of creating one and maintaining it myself from within my application. Is that too much to ask? ...
This question is for C# 2.0 Winform. For the moment I use checkboxes to select like this : Monday[x], Thuesday[x]¸... etc. It works fine but is it a better way to get the day of the week? (Can have more than one day picked) ...
I would like something that I can use as follows var msg = new NonStaticMessageBox(); if(msg.Show("MyMessage", "MyCaption", MessageBoxButtons.OkCancel) == DialogResult.Ok) {....} But specifically non-static (I need to pass a reference to it around) does anyone know if/where such an object exists? ...
I'm writing a WinForms application and one of the tabs in my TabControl has a SplitContainer. I'm saving the SplitterDistance in the user's application settings, but the restore is inconsistent. If the tab page with the splitter is visible, then the restore works and the splitter distance is as I left it. If some other tab is selected, t...
Is there a built-in editor for a multi-line string in a PropertyGrid. ...
My form receives asynchronous callbacks from another object on random worker threads. I have been passing the data to the main thread (where it can be used to update onscreen controls) using delegates as shown below. Performance is dreadful -- once I reach 500 updates per second, the program completely locks up. My GUI processing itse...
I've got a form where I have two radio buttons and two interchangeable controls (made up of a ListView and a handful of buttons). Based on which radio button is selected I want to display the proper control to the user. The way I'm doing this now is just loading both controls and setting up an OnRadioButtonSelectionChanged() method whic...
I have a windows application and I want to save the size, position and WindowState between sessions. There is one caveat however. If the state when closing is minimized then I want to restore to the last visible state, i.e. Normal if it was normal before being minimized or maximized if it was maximized. Is there a property, check, cal...
Hi I am writing an application in VB.NET 2008 that manages software deployment and I want to display a "deployment overview" grid. The grid will be populated with the names of each application (top row) and the name of each workstation (1st column). The remaining cells will be populated according to whether the corresponding software t...
I have found that when I execute the show() method for a contextmenustrip (a right click menu), if the position is outside that of the form it belongs to, it shows up on the taskbar also. I am trying to create a right click menu for when clicking on the notifyicon, but as the menu hovers above the system tray and not inside the form (as...
I am seeking a WinForm control that would provide an autocomplete behavior for multiple space-separated - exactly ala del.icio.us (or stackoverflow.com for that matter). Does anyone knows how to do that within a .NET 2.0 WinForm application? ...