windows forms programming c pdf download
Manning Windows Forms Programming (phần 2) ppt
... form b Recent projects Quick access to recent projects d Dockable windows One-click access (via the tabs) to various windows in the environment e New Project button Click here to create a new project f Solution ... try block throws this class as an exception. The catch clause can leave this class name out to catch any exception. Here, we catch all Exception class objects, which is generally all exceptions ... process (catch) exceptions. Note that it is possible for unmanaged code to throw exceptions that will not be seen as Exception objects. These exceptions can be caught using an empty catch clause. Public...
Ngày tải lên: 07/07/2014, 04:20
Manning Windows Forms Programming (phần 3) ppt
... it. PointToClient Converts a screen location to client coordinates. Public Events Click Occurs when the control is clicked. KeyPress Occurs when a key is pressed while the control has focus. MouseUp Occurs ... right-clicks an associated object. This class is part of the System .Windows. Forms namespace, and inherits from the Menu class. Context menus are typically associated with a graphical control, ... experienced users especially appreciate. Context menus are typically associated with a specific graphical control, but can also be brought up programmatically. As a result, context menus provide quick...
Ngày tải lên: 07/07/2014, 04:20
Manning Windows Forms Programming (phần 4) pptx
... sorted collection of keys and values accessible by both key and index. ICloneable, ICollection, IEnumerable, IDictionary StringCollection A collection of string objects. IList, ICollection, ... objects. This class is abstract. ICloneable, IList, ICollec- tion, IEnumerable ArrayList A dynamically-sized array. ICloneable, IList, ICollection, IEnumerable CollectionBase An abstract class ... a new copy of an existing Brush. You can create an instance of a Brush, since it is a class, but you cannot create an instance of an ICloneable except as a by-product of an existing class that...
Ngày tải lên: 07/07/2014, 04:20
Manning Windows Forms Programming (phần 5) doc
... next. UPDATE MENUIMAGE_CHILDCLICK EVENT HANDLER Action Result 12 Locate the menuImage_ChildClick method in the MainForm.cs source file. protected void menuImage_ChildClick (object sender, System.EventArgs ... ScrollableControl and ContainerControl classes extend the Control class discussed in chapter 4 to support functionality required by the Form class. The ScrollableControl class adds auto-scrolling capabilities, ... the MainForm constructor in the MainForm.cs source window. public MainForm() { . . . 4 Add a call to menuImage_ChildClick in this constructor. menuImage_ChildClick(menuScale, EventArgs.Empty); ...
Ngày tải lên: 07/07/2014, 04:20
Manning Windows Forms Programming (phần 6) pps
... // btnCancel // this.btnCancel.DialogResult = System .Windows. Forms. DialogResult.Cancel; this.btnCancel.Location = new System.Drawing.Point(187, 88); this.btnCancel.Name = "btnCancel"; ... exception occurs in the menuSave_Click method. HANDLE EXCEPTION IN MENUSAVE_CLICK METHOD Action Result 1 Locate the menuSave_Click method in the MainForm.cs file. private void menuSave_Click ... writ- ten more succinctly by taking advantage of the boolean value returned by our close album method. protected override void OnClosing(CancelEventArgs ce) { ce.Cancel = (!this.CloseCurrentAlbum()); ...
Ngày tải lên: 07/07/2014, 04:20
Manning Windows Forms Programming (phần 7) docx
... button is clicked. Public Methods PerformClick Generates a Click event for the button. 308 CHAPTER 9 BASIC CONTROLS This code demonstrates a couple of new concepts, such as setting the focus and ... occur. The Validating event receives a CancelEventArgs parameter much like the OnClosing event we discussed for the Form class in chapter 6. The CancelEventArgs.Cancel property is used to cancel ... object to enable the controls when the box is checked. How-to This is the default event for the CheckBox control, so simply double-click on the control. private void cbtnPassword_CheckedChanged ...
Ngày tải lên: 07/07/2014, 04:20