winforms

.NET 3.5 DataGridView Control Display values

Hi, Having a problem with the dataGridView control being populated with Display members: Code: private string settingsFile = @"Data\IntelliSched.xml"; private void loadDataFromXML() { dataSetXML.ReadXml(settingsFile); } DataSet contents: Table -> zone id name ---- Table -> postcode name code zone active ---- Pic...

C#: Change DropDownList value when Enter key is pressed

I have a windows form with a DropDownList with a fixed number of items. How do I make the DropDownList increment to the next item when I press Enter and when it reaches the end of the items, return to the first item. ...

winforms big paragraph tooltip

I'm trying to display a paragraph in a tooltip when I hover a certain picture box. The problem is, the tooltip takes that paragraph, and spans it on one line, all across my screen. How can I make it so that it takes a smaller, more readable area? or, maybe you have another technique to achieve the same thing, but without the tooltip func...

Clicking MDI children form doesn't bring it to front

This is a winform question in .net. In a MDI form, if I open several children forms, for some forms, if they are not activated (if you overlap them with the activate one, they are not up to front. Only the activate form is up to front.), clicking them don't bring them to front. This is even true if I click controls on them, such as a te...

how do I know when a user has selected an auto complete suggestion in a text box?

Using Winforms 2.0 I have a text box with a custom autocompletecollection source and the mode is suggest. How do I know when the user selects a suggestion? Thanks ...

How to edit cell of type Linkcolumn in a gridview

I have a gridview control having 4 columns. one of the column is of type linkcolumn. user has to enters data for each column. How can we edit link column cell. if i click on this cell nothing happen.i set its readonly to false also. ...

Windows Forms: Enable/Disable WS_CLIPCHILDREN

How do I turn on/off the WS_CLIPCHILDREN window style in a Windows Forms parent control? I would like to display some text on top of the child control after it has painted. In my parent control, this is what I have: class Parent : public Control { void Parent::OnPaint(PaintEventArgs ^e){ Control::OnPaint(e); // par...

2 sided winform Tree - exist?

Hi, I'm looking for a 2 sided winform Tree control. something like what you see in the math books. meaning that the tree can go both right and left in the control. Something like http://www.math.bas.bg/~nkirov/2010/NETB201/slides/ch06/pic3.jpg Thanks Avi ...

C# TextBox Autocomplete (Winforms) key events and customization?

Hi, I was wondering if it is possible to catch key events for auto-complete list. For example instead of Enter key press for auto-complete use lets say Tab key. Also is it possible to change the colors and add background image for the auto-complete pop-up list? Currently I have my own implementation which is a separate window(form) with...

Problem with dynamic create tabPages in Winforms TabControl

I want to create dynamic tabPages in TabControl. In each tabPage I create dataGridView and i want to fill the entire space of each tabPage with this dataGrid. Here is code, where i do this: private void tabControlMutants_SelectedIndexChanged(object sender, EventArgs e) { DataGridView dgw = new DataGridView(); D...

WebBrowser.Document.Body.InnerHtml strange behavior

I'm trying to load page and then remove some elements in it. While doing that I encountered strange behavior. When I do webBrowser1.Document.Body.InnerHtml = webBrowser1.Document.Body.InnerHtml; It turns off some JavaScript code, for example for Google.com it turns off auto completion. Why is that? I suppose it has something to do wit...

How does ListView.ItemCollection.Contains() work?

Hi everyone, I'm copying ListViewItems from one ListView to another, sth. like: foreach (ListViewItem item in usersListView.SelectedItems) { selectedUsersListView.Items.Add((ListViewItem)item.Clone()); } If I want to use ListView.ItemCollection.Contains() to determine if an item was already copied I always get false: foreach (Li...

question about windows controls changed event

I have several controls on my form and on changed event the logic entity properties are changed. Is it possible not to implement changed event for every control,but do it in one place and update my logic entity when user is making changes on the form? ...

Web browser control detect form submitted?

After a user submits a form, how do you detect that the form has been posted/submitted and the browser has navigated to the logged in page? ...

How to draw a rectangle in WinForm app in the correct location

I have a WinForm app that has an image displayed in a PictureBox that has the added functionality of allowing a user to draw a rectangle on the image by clicking and dragging. The Location, Height and Width of the rectangle are saved to disk. When the image is viewed again I would like to automatically redraw that rectangle in the sam...

How do I add "drawing" components to a WinForms control?

I'm using .NET 2.0 Windows Forms and want to add "drawing" components such as lines, rectangles, etc.. I've done this before in MS Access, but I can't seem to find similar things in teh Visual Studio 2005 IDE. Where do I need to look to find these elements? ...

WinForms: How to determine if window is no longer active (no child window has focus)?

My application uses multiple windows I want to hide one specific window in case the application loses focus (when the Active Window is not the application window) source I am handling the Deactivate event of my main form. private void MainForm_Deactivate(object sender, EventArgs e) { Console.WriteLine("deactivate"); ...

How to speed up loading the splash screen.

I am optimizing the startup of a WinForms app. One issue I identified is the loading of the splash screen form. It takes about half a second to a second. I know that multi-threading is a no-no on UI pieces, however, seeing how the splash screen is a fairly autonomous piece of the application, is it possible to somehow mitigate its p...

Allow IExtenderProvider control to attach to controls on a UserControl

VB.NET 2.0 Framework I developed a control that implements IExtenderProvider in order to attach to controls and display a form for translating of the text of that control. This works great on regular controls on the form but the IExtenderProvider is not attaching to controls on UserControls by default. Is it possible to modify the Use...

Are there any good resources/idioms for visually designing business applications?

I think we're all aware of what "your company's line-of-business software" looks like. Are there any resources, rules of advice, or general tricks to visually taming applications like this? Our business's domain is pretty complex, as most are, and our customers demand a great amount of flexibility. Tracking a boatload of fields on e...