고정된 셀(FrozenCells) API

셀 고정(Cell Freeze) 기능은 사용자가 특정 행과 열을 잠가 스크롤을 통해 다른 부분을 탐색하더라도 해당 행과 열이 항상 보이도록 해줍니다. 이전에는 FlexGrid에서 FrozenRowsFrozenColumns을 사용해 상단과 왼쪽의 셀만 고정할 수 있었습니다. 이제 이 기능이 확장되어 FrozenCells를 통해 오른쪽과 하단의 셀 고정도 가능합니다.

지원되는 작업:

  1. 왼쪽 또는 오른쪽의 열 고정
  2. 상단 또는 하단의 행 고정
  3. 하나의 가로(왼쪽 또는 오른쪽)와 하나의 세로(상단 또는 하단) 고정 결합 가능

중요한 사항: frozenCells API는 네 면 모두를 고정할 수 있는 옵션을 제공하지만, 동시에 두 면에 대해서만 셀을 고정할 수 있습니다:

  • 하나의 가로 면(왼쪽 또는 오른쪽)
  • 하나의 세로 면(상단 또는 하단)

주의:

  • 왼쪽과 오른쪽 모두 설정한 경우, 왼쪽에 적용됩니다.
  • 상단과 하단 모두 설정한 경우, 상단에 적용됩니다.
import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; import { FlexGrid } from '@mescius/wijmo.grid'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // generate some random data var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','), data = []; for (var i = 0; i < 200; i++) { data.push({ id: i, country: countries[i % countries.length], downloads: Math.round(Math.random() * 20000), sales: Math.random() * 10000, expenses: Math.random() * 5000, num1: Math.random() * 5000, num2: Math.random() * 5000, num3: Math.random() * 5000, num4: Math.random() * 5000, num5: Math.random() * 5000, }); } // default behavior: allow column reordering let theGrid = new FlexGrid('#theGrid', { itemsSource: data, allowPinning: 'Both', }); // Add event listener for the new freeze cells button document.querySelector('#btnFreezeCells').addEventListener('click', freezeCells); function freezeCells() { const frozenCells = { top: parseInt(document.getElementById('topFreeze').value) || 0, bottom: parseInt(document.getElementById('bottomFreeze').value) || 0, left: parseInt(document.getElementById('leftFreeze').value) || 0, right: parseInt(document.getElementById('rightFreeze').value) || 0 }; // Apply the frozenCells to the grid theGrid.frozenCells = frozenCells; // Read back what was actually applied const appliedFrozenCells = theGrid.frozenCells; // Prepare the message const messageElement = document.getElementById('errorMsg'); let appliedFreezeMsg = "Applied freeze: "; if (Object.keys(appliedFrozenCells).length === 0) { appliedFreezeMsg += "None"; } else { appliedFreezeMsg += Object.entries(appliedFrozenCells) .map(([key, value]) => `${key}: ${value}`) .join(', '); } // Display the message messageElement.style.display = 'block'; messageElement.style.color = 'green'; messageElement.textContent = appliedFreezeMsg; } // Add event listeners for disabling inputs const inputs = { top: document.getElementById('topFreeze'), bottom: document.getElementById('bottomFreeze'), left: document.getElementById('leftFreeze'), right: document.getElementById('rightFreeze') }; // Add event listener for the clear freeze cells button document.querySelector('#btnClearFreezeCells').addEventListener('click', clearFreezeCells); function clearFreezeCells() { theGrid.frozenCells = { top: 0, bottom: 0, left: 0, right: 0 }; Object.values(inputs).forEach(input => input.value = '0'); handleInputChange(); document.getElementById('errorMsg').innerHTML = ""; } const handleInputChange = () => { const topValue = parseInt(inputs.top.value, 10) || 0; const bottomValue = parseInt(inputs.bottom.value, 10) || 0; const leftValue = parseInt(inputs.left.value, 10) || 0; const rightValue = parseInt(inputs.right.value, 10) || 0; toggleDisable(topValue, inputs.bottom); toggleDisable(bottomValue, inputs.top); toggleDisable(leftValue, inputs.right); toggleDisable(rightValue, inputs.left); }; // Attach input event listeners Object.values(inputs).forEach(input => { input.addEventListener('input', handleInputChange); }); const toggleDisable = (primaryValue, secondaryElement) => { secondaryElement.disabled = primaryValue > 0; }; }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo FlexGrid Frozen Rows and Columns</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <div class="flex-grow-0"> <div id="freezeControls"> <h2 class="text-center">Grid Freeze Cells API</h2> <div class="inputs"> <div class="inputRow"> <div class="ctrl"> <label for="topFreeze" class="form-label">Freeze Rows (Top):</label> <input type="number" id="topFreeze" min="0" value="0" class="form-control" /> </div> <div class="ctrl"> <label for="bottomFreeze" class="form-label">Freeze Rows (Bottom):</label> <input type="number" id="bottomFreeze" min="0" value="0" class="form-control" /> </div> </div> <div class="inputRow"> <div class="ctrl"> <label for="leftFreeze" class="form-label">Freeze Columns (Left):</label> <input type="number" id="leftFreeze" min="0" value="0" class="form-control" /> </div> <div class="ctrl"> <label for="rightFreeze" class="form-label">Freeze Columns (Right):</label> <input type="number" id="rightFreeze" min="0" value="0" class="form-control" /> </div> </div> </div> <div class="d-grid gap-2 freezeBtns"> <button type="button" class="btn btn-primary" id="btnFreezeCells">Apply Freeze</button> <button type="button" class="btn btn-primary" id="btnClearFreezeCells">Clear Freeze</button> </div> <p id="errorMsg" class="text-center"></p> </div> </div> <div class="flex-grow-1 flex-container"> <div id="theGrid"></div> </div> </div> </body> </html>
.wj-flexgrid { max-height: 400px; max-width: 1000px; margin: 10px 0; } /* style frozen cells */ .wj-cell.wj-frozen:not(.wj-header):not(.wj-group):not(.wj-state-selected):not(.wj-state-multi-selected), .wj-cell.wj-frozen.wj-alt:not(.wj-header):not(.wj-group):not(.wj-state-selected):not(.wj-state-multi-selected) { background: rgb(255, 255, 125); } html, body { height: 800px; margin: 0; padding: 0; overflow: hidden; } .container-fluid { height: 100vh; display: flex; flex-direction: column; padding: 15px; box-sizing: border-box; overflow: hidden; margin: 0px 10px } #freezeControls { max-width:1000px; background-color: #f8f9fa; border-radius: 8px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); padding: 20px; margin-bottom: 15px; } #freezeControls h2 { color: #007bff; margin-bottom: 20px; } .control-group { margin-bottom: 15px; } #errorMsg { color: #dc3545; font-weight: bold; margin-top: 10px; } .grid-container { flex-grow: 1; min-height: 0; /* Important for Firefox */ display: flex; flex-direction: column; } .inputRow{ display: flex; justify-content: space-between; } .ctrl{ width: 100%; margin: 0px 10px; } .freezeBtns button{ margin: 10px } .flex-container { display: flex; }
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