barcode generator source code in c#.net CUSTOM CONTROLS in Java

Generator ECC200 in Java CUSTOM CONTROLS

CHAPTER 12 CUSTOM CONTROLS
Painting Data Matrix 2d Barcode In Java
Using Barcode generation for Android Control to generate, create Data Matrix ECC200 image in Android applications.
www.OnBarcode.com
UPCA Creator In Java
Using Barcode creation for Android Control to generate, create UPC A image in Android applications.
www.OnBarcode.com
void corePart_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) { isPressed = true; GoToState(true); } void corePart_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) { isPressed = false; isCoolDown = true; pressedTime = DateTime.Now; GoToState(true); } 3. Next, wire up the handlers to the events. You can do this in the CorePart property s setter, as follows. Note that in the case where more than one template is applied, before wiring up the event handlers, you need to make sure to remove any existing event handlers.
Print PDF417 In Java
Using Barcode generation for Android Control to generate, create PDF417 image in Android applications.
www.OnBarcode.com
Barcode Creation In Java
Using Barcode encoder for Android Control to generate, create Barcode image in Android applications.
www.OnBarcode.com
private FrameworkElement CorePart { get { return corePart; } set { FrameworkElement oldCorePart = corePart; if (oldCorePart != null) { oldCorePart.MouseEnter -= new MouseEventHandler(corePart_MouseEnter); oldCorePart.MouseLeave -= new MouseEventHandler(corePart_MouseLeave); oldCorePart.MouseLeftButtonDown -= new MouseButtonEventHandler( corePart_MouseLeftButtonDown); oldCorePart.MouseLeftButtonUp -= new MouseButtonEventHandler( corePart_MouseLeftButtonUp); } corePart = value; if (corePart != null) { corePart.MouseEnter += new MouseEventHandler(corePart_MouseEnter); corePart.MouseLeave += new MouseEventHandler(corePart_MouseLeave);
Data Matrix ECC200 Encoder In Java
Using Barcode drawer for Android Control to generate, create ECC200 image in Android applications.
www.OnBarcode.com
Print Code 128 In Java
Using Barcode encoder for Android Control to generate, create Code 128 Code Set A image in Android applications.
www.OnBarcode.com
CHAPTER 12 CUSTOM CONTROLS
Barcode Encoder In Java
Using Barcode encoder for Android Control to generate, create Barcode image in Android applications.
www.OnBarcode.com
Postnet 3 Of 5 Drawer In Java
Using Barcode creation for Android Control to generate, create Postnet image in Android applications.
www.OnBarcode.com
corePart.MouseLeftButtonDown += new MouseButtonEventHandler( corePart_MouseLeftButtonDown); corePart.MouseLeftButtonUp += new MouseButtonEventHandler( corePart_MouseLeftButtonUp); } } } 4. Recall that when the button is clicked, you need to make sure the button is disabled for however many seconds are set as the cooldown period. To do this, first create a method that checks to see if the cooldown time has expired, as follows:
Encoding Data Matrix In None
Using Barcode creation for Font Control to generate, create DataMatrix image in Font applications.
www.OnBarcode.com
Read Data Matrix ECC200 In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
private bool CheckCoolDown() { if (!isCoolDown) { return false; } else { if (DateTime.Now > pressedTime.AddSeconds(CoolDownSeconds)) { isCoolDown = false; return false; } else { return true; } } } The logic behind this method is pretty simple. If the isCoolDown flag is true, then you are simply checking to see if the current time is greater than the pressedTime added to the cooldown. If so, you reset the isCoolDown flag and return false; otherwise, you return true. 5. Now you need to surround the code in each of the event handlers with a call to the CheckCoolDown() method, as follows. If the cooldown has not yet expired, none of the event handlers should perform any action.
QR Code Drawer In None
Using Barcode generator for Office Excel Control to generate, create QR Code image in Microsoft Excel applications.
www.OnBarcode.com
Print USS Code 39 In C#.NET
Using Barcode drawer for Visual Studio .NET Control to generate, create Code 39 Extended image in .NET applications.
www.OnBarcode.com
void corePart_MouseEnter(object sender, MouseEventArgs e) { if (!CheckCoolDown()) { isMouseOver = true; GoToState(true); } } void corePart_MouseLeave(object sender, MouseEventArgs e)
Recognizing EAN 13 In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Matrix Generation In .NET
Using Barcode encoder for VS .NET Control to generate, create 2D Barcode image in .NET framework applications.
www.OnBarcode.com
CHAPTER 12 CUSTOM CONTROLS
Barcode Creation In .NET Framework
Using Barcode drawer for VS .NET Control to generate, create Barcode image in VS .NET applications.
www.OnBarcode.com
Draw Matrix 2D Barcode In Visual Basic .NET
Using Barcode printer for VS .NET Control to generate, create Matrix 2D Barcode image in .NET applications.
www.OnBarcode.com
{ if (!CheckCoolDown()) { isMouseOver = false; GoToState(true); } } void corePart_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) { if (!CheckCoolDown()) { isPressed = true; GoToState(true); } } void corePart_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) { if (!CheckCoolDown()) { isPressed = false; isCoolDown = true; pressedTime = DateTime.Now; GoToState(true); } } 6. Recall that in step 2 of the Defining Properties and States section, you created a method called OnCoolDownButtonChange(). At that time, you did not place anything in this method. This is the method that is called whenever there is a notification change to a dependency property. When a change occurs, you need to call GoToState() so the control can reflect the changes, as follows:
Make Barcode In .NET
Using Barcode maker for Visual Studio .NET Control to generate, create Barcode image in VS .NET applications.
www.OnBarcode.com
Making 1D Barcode In Visual Studio .NET
Using Barcode generator for .NET framework Control to generate, create 1D image in .NET applications.
www.OnBarcode.com
protected virtual void OnCoolDownButtonChange(RoutedEventArgs e) { GoToState(true); } 7. Next, create a constructor for your control and apply the default style key. In many cases, this will simply be the type of your control itself.
Read Barcode In VS .NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Making ECC200 In None
Using Barcode generator for Software Control to generate, create DataMatrix image in Software applications.
www.OnBarcode.com
public CoolDownButtonControl() { DefaultStyleKey = typeof(CoolDownButtonControl); } 8. The final step in creating the control is to define a control contract that describes your control. This is required in order for your control to be modified by tools such as Expression Blend. This contract consists of a number of attributes that are placed directly in the control class, as follows. These attributes are used only by tools; they are not used by the runtime.
CHAPTER 12 CUSTOM CONTROLS
namespace CoolDownButton { [TemplatePart(Name = "Core", Type = typeof(FrameworkElement))] [TemplateVisualState(Name = "Normal", GroupName = "NormalStates")] [TemplateVisualState(Name = "MouseOver", GroupName = " NormalStates")] [TemplateVisualState(Name = "Pressed", GroupName = " NormalStates")] [TemplateVisualState(Name = "CoolDown", GroupName="CoolDownStates")] [TemplateVisualState(Name = "Available", GroupName="CoolDownStates")] public class CoolDownButtonControl : Control { } } This completes the creation of the custom control.
Copyright © OnBarcode.com . All rights reserved.