تعديل خاصية النص للتسمية في MIT App Inventor - كتاب هندسة البرمجيات - الصف 12 - الفصل 1 - المملكة العربية السعودية

--- SECTION: تعديل خاصية Text (النص) الخاصة بالتسمية --- تعديل خاصية Text (النص) الخاصة بالتسمية حدد مجموعة Text (النص). حدد اللبنة البرمجية empty string (سلسلة نصية فارغة). ضع اللبنة البرمجية empty string (سلسلة نصية فارغة) في اللبنة البرمجية set Text to (ضبط النص إلى). اكتب Welcome to Saudi Arabia (مرحباً بكم في المملكة العربية السعودية) في لبنة empty string (سلسلة نصية فارغة). شكل 3.13: تعديل خاصية Text (النص) الخاصة بالتسمية وزارة التعليم 129 Ministry of Education 2025 - 1447 --- VISUAL CONTEXT --- **DIAGRAM**: MIT App Inventor Blocks Editor: Modifying Text Property Description: A multi-part diagram illustrating the steps to modify the Text property of a label in MIT App Inventor. The top part shows the Blocks editor interface with various panels. The left panel (1) highlights the 'Text' block category. The middle panel displays available text blocks. The right panel (3) shows the initial state of the workspace with 'when Visit_KSA .Click' and 'do set welcome_label .Text to' blocks, with an empty string block connected. A dashed arrow points from this empty string block to a lower, zoomed-in section (4) showing the modified block. In the modified block, the empty string is replaced with a text block containing 'Welcome to Saudi Arabia'. Data: The diagram visually guides the user through selecting the 'Text' block group, identifying the 'empty string' block, placing it into the 'set Text to' block, and finally typing 'Welcome to Saudi Arabia' into the string block. The numbers 1, 2, 3, 4 correspond to the steps described in the text instructions. Key Values: MIT APP INVENTOR, Projects, Connect, Build, Settings, Help, My Projects, View Trash, Guide, Report an issue, English, qkhaled.bl@gmail.com, Designer, Blocks, Visit_SA_App, Blocks, Built-in, Control, Logic, Math, Text, Lists, Dictionaries, Colors, Variables, Procedures, Screen1, Visit_KSA, welcome_label, Any component, join, length, is empty, compare texts, trim, upcase, starts at text, when Visit_KSA .Click, do set welcome_label .Text to, Welcome to Saudi Arabia Context: This diagram visually complements the step-by-step instructions for programming a UI element in MIT App Inventor, specifically demonstrating how to change the text displayed on a label component when a button is clicked.