I am changing the Visibility of a Form to false during the load event AND the form still shows itself. What is the right event to tie this.Visible = false; to? I'd like to instantiate the Form1 without showing it. using System; using System.Windows.Forms; namespace TestClient { public partial class Form1 : Form { public...
If I bind a WinForms ComboBox to an enum type's values, i.e. combo1.DropDownStyle = ComboBoxStyle.DropDownList; combo1.DataSource = Enum.GetValues(typeof(myEnumType)); Who knows how I could achieve the same result, while, in addition to entries matching each enum value, I can also have a blank entry representing no selection? I canno...
I hate it when I try to apply some logic to positioning elements on a form, only to have the rug jerked out from under me because of some bizarre gotcha like the visible area of the Control being affected by a Border which, in effect, creates a 3 pixel margin all around the inner, visible area of the Panel, and completely throws off any ...
Anybody have any experience with 3rd Party WinForm .NET grid controls? Before I spend the afternoon downloading and trying out several of the grids and/or control packs, anybody have opinions on vendors? functionality? etc. Some of the ones I'll be looking at are: XCeed Grid Telerik Grid - Part of RadControls for WinForms ...
To a WinForms control, I would like to add a handler after the container has initialized the control (or even better, after the parent has initialized all contained controls). Reason: The custom control has an option to trigger an action automatically. It should also trigger when this option is first enabled. However, at this point, ot...
Is there a way to launch a C# application with the following features? It determines by command-line parameters whether it is a windowed or console app It doesn't show a console when it is asked to be windowed and doesn't show a GUI window when it is running from the console. For example, myapp.exe /help would output to stdout on the...
How can one programmatically fire the SelectedIndexChanged event of a ListView? I've intended for the first item in my ListView to automatically become selected after the user completes a certain action. Code already exists within the SelectedIndexChanged event to highlight the selected item. Not only does the item fail to become hig...
I am looking to create an editable ListView in a C# winforms application where a user may double click on a cell in order to change its contents. It would be great if someone could provide my with some guidance and/or an example. I am not looking to use any commercial products. ...
Background: I need to provide a weekly report package for my sales staff. This package contains several (5-10) crystal reports. Problem: I would like to allow a user to run all reports and also just run a single report. I was thinking I could do this by creating the reports and then doing: List<ReportClass> reports = new List<ReportCla...
After a node's label is edited in the tree I try to resort the nodes to place the updated item in the right position. I do this by calling .Sort in AfterLabelEdit event handler which causes an infinite loop. How can I resort the nodes in a treeview after a label has been changed? ...
Maybe I'm just an idiot, but I can't seem to find an event that will fire for a textbox at the same time as the leave, but only when the contents of the textbox has changed. Kinda like a combination of textchanged and leave. I can't use textchanged cause it fires on each keystroke. Right now I'm storing the current value of the textbo...
I have a SafeInvoke Control extension method similar to the one Greg D discusses here (minus the IsHandleCreated check). I am calling it from a winform as follows: public void Show(string text) { label.SafeInvoke(()=>label.Text = text); this.Show(); this.Refresh(); } Sometimes (this call can come from a variety of threads...
Is there any C# API for this task? Any suggestions? ...
I want to send an email from a .net windows forms application using the system's default email client (thunderbird, outlook, etc.). I'd like to preset the subject and body text -- I think there's a way to do this by sending something like this to windows explorer: "mailto:[email protected]?subject=mysubject&body=mymessage". Do you hav...
I'm trying to implement a custom control in C# and I need to get events when the mouse is hovered. I know there is the MouseHover event but it only fires once. To get it to fire again I need to take the mouse of the control and enter it again. Is there any way I can accomplish this? ...
I have the same question, but the answer to use a UserControl will not do. I also need to create a control container that I can add other controls to at design time so I can add it to yet another container (Splitter Panel) which is not avaialable to me at design time (plugin architecture). When I make a User Control, it is missing the...
I need to arrange a few of my controls using split containers such that one split container is nested inside another. I find that each instance of the SplitContainer class is itself a Control and comes with two instances of SplitterPanel which is a control too. For example, in the following illustration, I am arranging just 3 of my cont...
From a custom Winforms component that is embedded in a form, how to I get the parent/owner control? I have an IContainer and the Site property is not null, but I have no idea how to get to the "real" parent. (this is a followup to this question, atm I am trying to add a handler to the parents VisibleChanged, but that's not the first t...
Our client (a winforms app) includes a file-browser. I'd like the user to be able to open the selected file using the shell's default handler. How do I do that? I've read that I should use the Win32 API rather than the registry, but I'd prefer a solution that involves only .NET. ...
I have a DataGridView which I add data to programatically. I have the AutoSizeRowsMode set to AllCells and the WrapMode on RowsDefaultCellStyle set to True. If I add a multiline row to the DataGridView it shows up fine (autoscaling the row to show the multiple lines). However, if I hide the column that has the multiline data (so that the...