Web controls
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Web controls are used to build the graphical user interface of ASP.NET applications. There are four main types of web controls: intrinsic controls, list controls, rich controls, and validation controls. Intrinsic controls correspond directly to basic HTML elements like text boxes and buttons. List controls handle repetitive elements like drop-down lists and checkboxes. Rich controls provide advanced functionality like calendars. Validation controls validate user input on the client-side before form submission.
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Asp.net page lifecycleKhademulBasher This document discusses the ASP.NET page lifecycle. It begins with an introduction to the speaker and their published articles. It then defines the page lifecycle as the period between a page request and response. The main stages of the lifecycle are described as: initialization, load, postback event handling, rendering, and unload. Events occur and corresponding event handlers are called within each stage. A flow chart visualizes the full lifecycle process from initialize to dispose.
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Maxon Cinema 4D 2025 is the latest version of the Maxon's 3D software, released in September 2024, and it builds upon previous versions with new tools for procedural modeling and animation, as well as enhancements to particle, Pyro, and rigid body simulations. CG Channel also mentions that Cinema 4D 2025.2, released in April 2025, focuses on spline tools and unified simulation enhancements.
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Proactive Vulnerability Detection in Source Code Using Graph Neural Networks:...Ranjan Baisak As software complexity grows, traditional static analysis tools struggle to detect vulnerabilities with both precision and context—often triggering high false positive rates and developer fatigue. This article explores how Graph Neural Networks (GNNs), when applied to source code representations like Abstract Syntax Trees (ASTs), Control Flow Graphs (CFGs), and Data Flow Graphs (DFGs), can revolutionize vulnerability detection. We break down how GNNs model code semantics more effectively than flat token sequences, and how techniques like attention mechanisms, hybrid graph construction, and feedback loops significantly reduce false positives. With insights from real-world datasets and recent research, this guide shows how to build more reliable, proactive, and interpretable vulnerability detection systems using GNNs.
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Web controls
- 2. Web controls? Controls are small building blocks of the graphical user interface, which include text boxes, buttons, check boxes, list boxes, labels, and numerous other tools. Using these tools, the users can enter data, make selections and indicate their preferences. Controls are also used for structural jobs, like validation, data access, security, creating master pages, and data manipulation.
- 3. Server Controls Web Controls Four types of Web Controls Intrinsic controls List controls Rich controls Validation controls
- 4. Server Controls Intrinisic Controls Correspond to HTML controls Supported controls <asp:button> <asp:imagebutton> <asp:linkbutton> <asp:hyperlink> <asp:textbox> <asp:checkbox> <asp:radiobutton> <asp:image> <asp:label> <asp:panel> <asp:table>
- 5. Server Controls Intrinisic Controls TextBox, ListControl, CheckBox and their subclasses don’t automatically do a postback when their controls are changed Specify AutoPostBack=true to make change events cause a postback
- 6. Server Controls List Controls Controls that handle repetition Supported controls <asp:dropdownlist> <asp:listbox> <asp:radiobuttonlist> <asp:checkboxlist> <asp:repeater> <asp:datalist> <asp:datagrid>
- 7. Server Controls CheckBoxList & RadioButtonList Provides a collection of check box or radio button controls Can be populated via data binding <asp:CheckBoxList id=Check1 runat="server"> <asp:ListItem>Item 1</asp:ListItem> <asp:ListItem>Item 2</asp:ListItem> <asp:ListItem>Item 3</asp:ListItem> <asp:ListItem>Item 4</asp:ListItem> <asp:ListItem>Item 5</asp:ListItem> </asp:CheckBoxList>
- 8. Image control TextBox control DropDownList control HyperLink control RadioButtonList Button control WebControls3 Example
- 9. Server Controls Rich Controls Custom controls with rich functionality Supported Controls <asp:calendar> <asp:adrotator>
- 10. Validation Controls HTML does not facilitate validation of user input ASP.NET provide validation controls that checks the user input before submitting the form Utilizes client-side DHTML to provide fast response
- 12. Validation Controls To activate the validation controls before the form is submitted, set button property “Causes Validation” to true Each validation control is bound to one input control. An input control may have multiple validation controls
- 13. RequiredFieldValidator initialValue RangeValidator MaximumValue, MinimumValue, Type CompareValidator ControlToCompare, Operator,Type, ValueToCompare RegularExpressionvalidator ValidationExpression
- 14. Displays all the errors that happened in the page in one area Message in the errorMessage properties will be displayed in the summary Display mode: list or bullet list or paragraph Other properties HeaderText ShowMessageBox / ShowSummary
- 15. ASP.NET Page Life Cycle When a page is requested, it is loaded into the server memory, processed, and sent to the browser. Then it is unloaded from the memory. At each of these steps, methods and events are available, which could be overridden according to the need of the application.
- 16. The page life cycle phases are: 1. Initialization 2. Page load 3. Validation 4. Postback event handling 5. Page rendering 6. Unload
- 17. Following are the different stages of an ASP.NET page: 1. Page request - When ASP.NET gets a page request, it decides whether to parse and compile the page, or there would be a cached version of the page; accordingly the response is sent. 2. Starting of page life cycle - At this stage, the Request and Response objects are set. If the request is an old request or post back, the IsPostBack property of the page is set to true. The UICulture property of the page is also set.
- 18. Page initialization - At this stage, the controls on the page are assigned unique ID by setting the UniqueID property and the themes are applied. For a new request, postback data is loaded and the control properties are restored to the view-state values. Page load - At this stage, control properties are set using the view state and control state values. Validation - Validate method of the validation control is called and on its successful execution, the IsValid property of the page is set to true.
- 19. Postback event handling - If the request is a postback (old request), the related event handler is invoked. Page rendering - At this stage, view state for the page and all controls are saved. The page calls the Render method for each control and the output of rendering is written to the OutputStream class of the Response property of page. Unload - The rendered page is sent to the client and page properties, such as Response and Request, are unloaded and all cleanup done.