devexpress wpf controls

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How WPF alleviates the slow loading of a large number of controls

Recently, a project needs to load a large number of controls, causing the system to appear in the problem, after a few days of effort, finally took care of, write a memo.The solution is to display only the visible area control when it is first loaded, and then batch-load it with a worker thread, setting the priority level of the batch-loaded thread to idle, so that there is no lag caused by the load thread when the user operates. 1 dispatcher.invoke (

Encapsulation of WPF banner controls

) return true; else return false; } return false; } #endregion}}Iii. creating a banner user controlBanner.xaml Banner.xaml.cs Using system;using system.collections.generic;using system.linq;using system.text;using System.Windows;using System.windows.controls;using system.windows.data;using system.windows.documents;using System.Windows.Input;using System.windows.media;using system.windows.media.imaging;using system.windows.navigation;using System.windows.shape

Custom Controls for automatic image carousel using WPF

Recently, a company project needs to write a custom control, and then the following controls are generated.The style is not defined, and basic functions have been implemented.1. Create a custom control's XAML page.The following is the background code Using system; using system. collections. generic; using system. LINQ; using system. text; using system. threading; using system. windows; using system. windows. contr

Solution to compatibility between irregular forms and WebBrowser controls in WPF

/WebBrowserOverlay. xaml. cs q = WebBrowserOnTransparentWindow d = 3 To use these two files, copy them to the project: Then place a named Border element in the place where you want to load WebBrowser: Then set it in the background Code as follows: In this way, your original Border location will be loaded into a WebBrowser. Its principle seems to be to use a new form without irregular shapes and transparency to carry WebBrowser, which avoids the flexibility problem we encountered before, and

Solution to compatibility between irregular forms and webbrowser controls in WPF

/Glu/helper/webbrowseroverlay. XAML. CS Q = webbrowserontransparentwindow D = 3 To use these two files, copy them to the project: Then place a named border element in the place where you want to load webbrowser: Then set it in the background Code as follows: In this way, your original border location will be loaded into a webbrowser. Its principle seems to be to use a new form without irregular shapes and transparency to carry webbrowser, which avoids the flexibility problem

Attributes of common controls in WPF

Source = new bitmapimage (New uri (wangcaiconfig. getcurrentdirectory () + imgstr, urikind. relativeorabsolute) This. pictureimage. source = new bitmapimage (New uri (IMG, urikind. relativeorabsolute )); Canvas. Right = "10": canvas. setright (stateimage, 0 ); Canvas. Bottom = "0": canvas. setbottom (stateimage, 0 ); : Margin = New thickness (20, 0, 0, 0 ), Padding = "5, 0, 0": padding = New thickness (5, 0, 0, 0 ), Foreground = "#333": foreground = new solidcolorbrush (color) colorconverter.

WPF inherits form controls that you design

Basewin cannot have a XAML file, it can only be a class namespace WPFStudy { public class MyBaseWin : Window { Span class= "KWD" >public mybasewin ( int W int h string title ) { this.WindowStartupLocation = WindowStartupLocation.CenterScreen; this.Width = w; this.Height = h; this.Title = title; this.FontSize = 50; } } } Subclass inheritance Note There are two

C # uses events to invoke controls in the WPF main window across classes

voidInfunction (stringmessage)7 {8 varMessagearg =NewMessageargs9 {TenTxtmessage=message One }; A if(Partevent! =NULL)//If a function is registered to Partevent in the MainWindow constructor, it is not null - { -Partevent (New Object(), Messagearg);//trigger an event to execute all registered functions the } - } - - Public Static BOOLMonitorcenter () + { -Infunction (" Change");//to modify the t

C # uses events to invoke controls in the WPF main window across classes

Xaml.cs file:Messageargs class:Public Monitor Static class: Public C # uses events to invoke controls in the WPF main window across classes

WPF custom controls and styles: ScrollViewer and ListBox custom styles

A Objective Disclaimer: WPF Custom control and style is a series of articles, there are some related, but mostly in accordance with the order from simple to complex, and so on, if there is not understand the place can refer to the previous articles in this series, the end of the article with some links. The main content of this article: ScrollViewer style and basic style definition; the style definition of the ListBox collection control; Two ScrollVie

Write controls on the VM interface under the wpf mvvm framework, wpfmvvm

Write controls on the VM interface under the wpf mvvm framework, wpfmvvm Normally, MVVM writes a style on the View page and logic on the ViewModel page, but sometimes writing a style on the View page does not meet the requirement. I recently encountered this project, so I can only write style controls on the VM page, and then bind them to the View page. First loo

The use of WPF TabControl controls

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Windows;usingSystem.Windows.Controls;usingSystem.Windows.Data;usingSystem.Windows.Documents;usingSystem.Windows.Input;usingSystem.Windows.Media;usingSystem.Windows.Media.Imaging;usingSystem.Windows.Shapes;namespaceWPF controls are bound to each other {/// ///the interactive logic of Window2.xaml/// Public Partial classWindow2:window { PublicWindow2 () {I

WPF custom controls and styles (11)-Wait/free/loading state-control implementation

A ObjectiveDisclaimer: WPF custom controls and styles are a series of articles, before and after some related, but mostly in accordance with the order from simple to complex gradually released, etc., if you do not understand where you can refer to the previous articles in this series, at the end of the article is accompanied by some links.This article mainly has three kinds of realization way: Simp

WPF custom Controls (2)--chart design [1]

= "Black"strokethickness= "3"X1= "Max"Y1= "280"X2= "480"Y2= "280"StrokeStartLineCap= "Round"/>3 Linex:name= "Y_axis"Stroke= "Black"strokethickness= "3"X1= "Max"Y1= "280"X2= "Max"Y2= "+"StrokeStartLineCap= "Round"/>4 Pathx:name= "X_axisarrow"Fill= "Black">5 Path.data>6 PathGeometry>7 PathFigureStartPoint= "480,276"IsClosed= "True">8 LineSegment Point= "480,284"/>9 LineSegment Point= "490,280"/>Ten

WPF replaces Web controls with Cefsharp

There is a need to use WPF to place buttons on the map and be transparent, but if you use WPF's WebBrowser, the compatibility is not very good, although the implementation of placing controls on them, but not transparent.Read a few blog, some people say is because of the compatibility of IE, change a train of thought, do not use IE browser good? This is found on the Internet Cefsharp control, which is a Goo

Layout controls in WPF

In WPF, panel is used for page layout. Panel is an abstract class and serves as the base class of all panel controls. Panel does not inherit from the control class, but directly inherits from frameworkelement. View the inheritance relationship of panel: Panel has the following Derived classes: canvas, dockpanel, grid, stackpanel, virtualizingstackpanel, and wrappanel. The panel

The simplest way to bind data to data controls such as a WPF ListBox or ListView

On the Internet is difficult to find the simplest case, are a large, looking at all headaches;Try extrapolate, if the result is assigned to DataContext this property, then the foreground needs to bind itemssource= "{Binding}", please note. The direct assignment to the ITEMSSOURC is not bound;Background code:liststring> list =Newliststring>(); for(inti =0; I -; i++) {list. ADD ("SAS"+i); } This. MB. DataContext =list; Liststring> MB2 =Newliststring>(); for(inti =0; I -; i++) {MB2.

custom controls in WPF and their use

There are 3 main steps:1. First create a custom control that inherits the TextBoxnamespace ezintepark.presentation.common{//2. When you want to use the control in the window or UserControl class, first introduce a namespace, such as:3. Use the control   custom controls in WPF and their use

Get the relative position between controls in WPF

1, gets the position of the element relative to the parent controlUsing the Vector Visualtreehelper.getoffset (visual visual) method, it returns the offset of visual in its parent control, and then you can then convert the vector object that returns the value to a point object.2, gets the position of the element relative to the ancestor control or descendant controlUse the Generaltransform transformtoancetor (visual Ancetor) method of the element with Generaltransform transformtodescendent (visu

C # WPF controls the item sequence of ListBox

) ========================================== //4.Int CH = ListBox. selectedindex;5.ListBox. Items. insert (CH + 2, ListBox. items [CH]);6.ListBox. Items. removeat (CH );7.}Why is Unit 2 here? As mentioned above, insertion will move others down. If only the next one is inserted, the original one will be placed behind it. In turn, he wants to move two units.Congratulations ~Able to solve this problem within one day ~ (Sprinkling flowers)In fact, I think there is another way to use binding.It's jus

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